Professor Cris Arnold
Professor
Engineering
Telephone: (01792) 295749
Room: Deputy Head of College - A_104
First
Engineering Central
Bay Campus

My main research focus is on the long-term lifetime behaviour of polymers and polymer based composites. Most of this research is industrially-linked with companies including Airbus, Tata, Fiberweb, Rolls Royce and TWI. Projects are funded by EPSRC, ERDF, Welsh Government and Industry, amounting to over £1million in the last four years.

Specific research projects include:

Modelling of the effects of water ingress into carbon-fibre / epoxy composites
The effects of graphene-nanoparticle reinforcement on thermoplastic performance
Outdoor lifetime prediction of polymer-coated steels
Weathering of polymers and biopolymers used for tree shelters
The effects of impact damage and repair methods for carbon-fibre composites
In addition, I also have a research activity in the environmental impact assessment of polymer-based materials through their lifetime, including the effects of recycling and biopolymers.

Through my involvement with the Welsh Composites Centre, the Astute project and the ATM scheme, I undertake significant smaller-scale collaborative R&D projects with companies across the local region.

Publications

  1. & Directional diffusion of moisture into unidirectional carbon fiber/epoxy Composites: Experiments and modeling. Polymer Composites
  2. Environmental Effects on Crack Growth in Composites. In Comprehensive Structural Integrity. -470).
  3. & Water absorption and low-energy impact and their role in the failure of ±45° carbon fibre composites. Polymer Composites
  4. & (2014). An exploration of core misalignment, shifting and deflection phenomena through thickness measurements on thin-walled injection moulded bins. Presented at Sustainable Design and Manufacturing (SDM) Conference, Cardiff 28-30 April, 2014.,
  5. & (2014). Thermal Analysis as a Tool for Assessing the Degradation of PVC-coated Constructional Steel.. Presented at International Conference & Exhibition on Advanced & Nano Materials. Calgary, Canada.,

See more...

Teaching

  • EG-108 Engineering Sustainability

    To understand what sustainability is, why it is important and how engineering can be carried out in a sustainable way. ¿sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs.¿ (Bruntland Commission, UN, 1987) The three ¿pillars¿ of sustainability are protection of the environment, stable and profitable business economics and a healthy society. The module aims to inspire engineers through good case studies and to show how engineers can contribute to all three aspects of this ¿triple bottom line¿.

  • EG-187 Engineering Analysis for Materials 1

    To provide a grounding in engineering analysis methods for materials students. The module will cover the most important analytical functions and methods used in engineering and will relate these to common materials-related examples. The module will ensure the required grounding in methods and techniques for those who have not previously covered this area, or who are retuning after a gap. It will also provide opportunities for extension to more complicated examples for those who have more prior experience.

  • EG-385 Polymers: Properties and Design

    Mechanical properties and design with rubber. General mechanical properties of polymers; viscoelasticity, time and temperature dependence, creep, recovery and stress relaxation. Design using deformation data; creep curves, pseudo-elastic design methodology, time and temperature dependant modulus, limiting strain. Mathematical modelling of viscoelasticity; equations for creep, recovery, relaxation, Maxwell and Voigt models, 4-element model, standard linear solid model. Boltzmann superposition principle and its use with complex stress histories. Strength and fracture of polymers; energy approach, toughness, ductile / brittle transitions, yield strength, ductility factor. Creep failure of plastics; fracture mechanics approach, fatigue failure, effects of cycle frequency, waveform, fracture mechanics approach to fatigue.

  • EG-M108 Advanced Polymers & Composites

    The module will provide a deeper understanding of the technology of plastics & composites processing. The material covered will cross cut the engineering disciplines of advanced manufacturing technology and polymer science to broaden the technical and industrial context of polymer and composite processing. Within the content of the module simulation software will be applied to industrial case study examples for critical evaluation. In addition, the module will also introduce micro injection moulding, composite layups and 3-D printing.

  • EG-M73 Composite Materials

    A detailed coverage of current polymer, metal and ceramic matrix composite systems for applications in gas turbines focusing on their performance envelope, advantages and limitations. The units will cover the following: The components and their attributes - an overview (reinforcements, matrices and interfaces), Properties of the matrix materials (Thermosets/thermoplastics, metals, ceramics, structure and mechanical behaviour), Properties of fibres and particles (Glass fibres, organic fibres, carbon fibres, ceramic particles and fibres; processing, structure, mechanical response), Composite manufacture (Piles, weaves, performs, moulding pultrusion, filament winding, powder metallurgy, casting spraying), Mechanics of reinforcement (Rule of mixtures, anisotropy, laminate structures, stress- strain response), Basic stress analysis and failure mechanisms (Stress transfer and partitioning, multiple failure events, progression of fracture, toughness), Fatigue design considerations (Damage progression, reinforcement effects); Calculations.

  • EGA301 Composite Materials

    This module provides a detailed coverage of the structure, properties, processing and applications of composite materials. It focuses particularly on their engineering use in applications such as the automotive, marine and aerospace sectors. The module covers polymer, ceramic and metal matrix composites.

  • EGF100 FdEng Process Fundamentals

    The module provides an introduction to the fundamentals of the process industry including the key activities and working practices adopted within the industry..

  • EGF101 fdEng Industrial Project (1) Brief/Plan

    To develop engineering skills through industrially-driven project work, undertaken within the student's own industrial environment. This is Part 1 (brief and plan) of a four-part project.

  • EGF102 FdEng Basic Engineering Analysis

    Introduction to fundamental mathematics of numbers, algebra, functions, matrices, series and calculus.

  • EGF103 FdEng Engineering Science

    Introduction to fundamental engineering science

  • EGF104 FdEng Introduction to Mechanical Design

    To develop competence in engineering drawing using CAD and essential laboratory skills.

  • EGF105 FdEng Engineering Mechanics

    This module aims to provide the students with the basic knowledge of the fundamental concepts of statics and the students will be able to solve mathematical models which describe the effects of forces on a variety of engineering problems.

  • EGF106 FdEng Introduction to Materials Engineering

    To introduce students to the characteristics of behaviour of engineering materials.

  • EGF107 FdEng Applications of Hydraulics and Pneumatics

    To develop skills in the design and construction of Hydraulic and Pneumatic circuits and an appreciation of their applications.

  • EGF108 FdEng Research, Study and Presentation Skills

    To bridge the gap between L3 vocational studies and HE/Professional training by developing candidate's study skills, enabling them to maximise their potential on the course and equipping them with the appropriate study and presentation skills to achieve this.

  • EGF109 FdEng Fluid Mechanics

    To introduce students to the study of fluids under static and dynamic flow conditions.

  • EGF110 FdEng Thermodynamics

    This is an introductory module for engineers and includes the following topics: thermodynamic systems, properties of pure substances, liquids, gases and vapours, the First Law of Thermodynamics, the Second Law of Thermodynamics, closed and open systems, entropy, power cycles.

  • EGF111 FdEng Strength of Materials

    This module studies the effects of external actions such as forces and thermal changes in simple structures and engineering components. It describes states of stresses and strains via models such as Mohr's circle. It introduces simple beam theories to determine stresses, strains and deformations of beams under bending, shear and torsion.

  • EGF112 FdEng Introduction to Electrical Design

    To develop competence in engineering drawing using CAD and essential laboratory skills.

  • EGF113 FdEng Microcontrollers and PLCs

    This module introduces basic microcontroller and PLC structure and operation.

  • EGF114 FdEng Circuit Analysis

    To provide an introduction to analog electrical circuit analysis and design.

  • EGF115 FdEng Instrumentation & Control

    To introduce students to sensors and signals, their conditioning and conversion and the performance of control systems.

  • EGF116 FdEng Power Engineering

    To introduce the concepts of power engineering including magnetics, electromagnetic induction and 3-phase supply.

  • EGF117 FdEng Signals and Systems

    To introduce the concepts of signals and systems including types of signals, waveforms and waveform parameters

  • EGF118 FdEng Industrial Project 1

    To develop engineering skills through industrially-driven project work, undertaken within the student's own industrial environment. This is Part 1 (brief and plan) of a four-part project.

  • EGF119 Introduction to Mechanical Design

    To develop competence in engineering drawing using CAD and essential laboratory skills.

  • EGF120 FdEng Introduction to Electrical Design

    To develop competence in engineering drawing using CAD and essential laboratory skills.

  • EGF121 FdEng Process Control Techniques

    This module will provide an Introduction to industrial process measurement and control techniques and their application to manufacturing operations.

  • EGF123 FdEng Programmable Logic Controllers

    This module provides students with an Introduction to PLC systems, program development, simulation, testing and application in an industrial environment.

  • EGF124 FdEng Power Systems

    The module provides an Introduction to the concept of power systems at both a component level and system level. This will be achieved by using a mathematical and practical approach.

  • EGF125 FdEng Electrical Machines

    The module is an introduction to electrical machines and their applications including starting and control methods. This will be achieved by using a mathematical and practical approach.

  • EGF200 FdEng Process Safety

    This module is designed as an introduction to process safety and the hazards associated with working in the process industry in order help promote an incident and injury free workplace.

  • EGF201 FdEng Engineering Analysis

    To further develop Engineering skills through industrially-driven project work, undertaken within the student¿s own industrial environment. This is Part 4 (evaluation) of a four-part project.

  • EGF202 FdEng Indistrial Project 2 (WBL)

    To develop engineering skills through industrially-driven project work, undertaken within the student's own industrial environment. This is Part 2 (investigation) of a four-part project.

  • EGF203 FdEng Industrial Project 3 (WBL)

    To develop engineering skills through industrially-driven project work, undertaken within the student's own industrial environment. This is Part 3 (implementation) of a four-part project.

  • EGF204 FdEng Industrial Project 4 (WBL)

    To develop engineering skills through industrially-driven project work, undertaken within the student's own industrial environment. This is Part 4 (evaluation) of a four-part project.

  • EGF206 FdEng Mechanical Properties of Materials

    To understand the advanced characteristics and behaviour of engineering materials.

  • EGF207 FdEng Electronic Circuits

    To develop a detailed understanding of the design and performance of advanced electronic circuits, particularly operational amplifiers.

  • EGF208 FdEng Advanced Electrical Principles

    The module provides an understanding of advanced electrical principles and underpins the knowledge for the specialist Electrical and Electronic modules.

  • EGF209 FdEng Engineering Management 1

    To develop an awareness of different management and leadership styles, corporate management structures, strategic management, workforce development and personal CPD planning.

  • EGF210 FdEng Engineering Management 2

    To develop a commercial awareness of different types of business, fiscal and administrative processes. To be able to differentiate between civil and criminal actions and how these apply in engineering businesses. To develop an understanding of the management and application of health and safety legislation.

  • EGF211 FdEng Advanced Design

    To build on skills develop in Year 1 of the Foundation Degree programme, using research, design and analysis. An integrated design project will be undertaken with an electro-mechanical prototype being designed, manufactured, tested and evaluated. Students will work in small groups to complete the project.

  • EGF212 FdEng Plant Maintenance

    This module is designed to develop the student¿s appreciation of engineering plant maintenance and management techniques.

  • EGF213 FdEng Instrumentation and Control Systems 2

    The module will provide an introduction to industrial process measurement and control systems, and the application of mathematical modelling techniques for system characterisation, performance and stability analysis.

  • EGF214 FdEng Business Management

    To develop a commercial awareness of different types of business, fiscal and administrative processes. To be able to differentiate between civil and criminal actions and how these apply in engineering businesses. To develop an understanding of the management and application of health and safety legislation. To gain an understanding of management structures and influences that drive

  • EGF215 FdEng Industrial Project 4 (WBL)

    To develop engineering skills through industrially-driven project work, undertaken within the student's own industrial environment. This is Part 4 (evaluation) of a four-part project.

  • EGH100 Work Based Learning

    This work-based module will be undertaken in the spring / summer period within the student¿s employing company. It will involve flexible learning designed to extend and reinforce the material covered in other modules. It will be directed and supported by both industrial and academic supervisor. The areas to be encompassed within the case studies will include health and safety management, quality and manufacturing management, design and material selection.

  • EGH309 Advanced Materials

    This module will cover the detailed mechanical behaviour of both metallic alloys and fibre composites. It will start with a recap of tensile failure mechanisms, but extend to compression and shear failures. Fracture mechanics will then be introduced as applied to metallic materials and be extended to damage accumulation methods for composite materials. Creep, fatigue and impact will be covered as will the effects of elevated temperature and external environmental conditions.

  • EGTM89 Polymers: Properties and Design

    To instil an understanding of design methods with polymeric materials, dealing especially with viscoelastic behaviour.

  • EGW102 Introduction to Materials Engineering

    The module is designed to introduce Level 1 students to the basic principles of materials selection in mechanical design, including characterisation of mechanical properties, atomic structure of materials, crystal structures, vacancies and diffusion, micostructure evolution (solidification), phase diagrams and the treatment of plain carbon steels.

  • EGW103 Introduction to Computer Aided Design Inventor

    Module Aims: To gain competence in producing engineering drawing using Computer Adided Design - Inventor software, plus essential laboratory skills

  • EGW104 Health and Safety Management

    ...

  • EGW107 Finance for Engineers

    This course provides the perfect introduction to the basics of budgeting and business finance, highlighting the importance of financial awareness in today's environment of shrinking budgets and pricing pressures. Understanding finance is becoming an increasingly important part of the role of anyone with managerial duties. The module is designed to assist engineers in management positions, develop an understanding of: Business¿ financial background How to interpret accounts To understand, develop and control budgetary requirements Investment appraisal and financial planning

  • EGW108 Strength of Materials

    Introduction to the mechanics of materials. The module covers basic engineering concepts such as stress and strain and their relationships. It describes the way in which simple engineering components behave under the action of external forces or other actions such as thermal changes. The course serves as an introduction to more advanced modules on structural mechanics or stress analysis.

  • EGW110 Introduction to 2D AutoCAD

    Module content: This module has been designed to provide a thorough grounding in AutoCAD, teaching how to produce accurate 2D drawings. Method of delivery Training combines lecture, demonstration and hands-on practice. Participants will have ample opportunity to discuss their specific requirements with the trainer. Who should attend? ¿ Newcomers to AutoCAD and CAD drawing. ¿ Users with a small amount of AutoCAD experience. ¿ Users who have previously used a different CAD tool and are looking to migrate to AutoCAD. Prerequisites Delegates should have a working knowledge of Microsoft® Windows®. No prior CAD knowledge is necessary. Is the training relevant to specific industries? This AutoCAD training course teaches generic AutoCAD drawing techniques that can be applied to all industries.

  • EGW115 "Soft" Skills for Engineers

    Module Aims: To develop awareness of the skills required to meet the Engineering Council's registration requirements to "demonstrate personal and social skills" and "lead / manage teams and develop staff".

  • EGW116 Project Management Skills

    Module Aims: competence in Project Management skills The module has been designed to assist engineers to understand, develop and apply the principles, process, tools and techniques of every aspect of project management and to assist them to develop project management skills appropriate to their industry.

  • EGW117 Stress Analysis

    This module includes: section properties; unsymmetrical bending; stresses in thick cylinders; rotating discs; theories of failure; stress concentration effects; fatigue and linear elastic fracture mechanics.

  • EGW118 Social Media for Engineers

    This course has been specifically written with the engineer in mind. It will cover all aspects of social media from its uses in everyday life to helping with learning, collaboration, project management and marketing. The course will begin with an introduction to social media and the internet, along with addressing issues of privacy and lack of IT skills/confidence. This will be followed with how social media can be used to help you in your role, increase knowledge and meet collaboration needs. Finally there is a look at how social media can promote and generate more business, improving the image of a company as experts in their field.

  • EGW119 Presentation Skills and Public Speaking for Engineers

    This highly interactive, hands-on program will teach you not only the basics: elocution, posture, pitch, tone, pace ...etc, but also the secrets of eye contact and body language that the professionals use to add extra power to their words. This course will help you understand the psychology of how to reach your key listeners - the ones who will make the final decision. In addition, our tutor will provide you with personal coaching via two video-taped practice sessions. These sessions allow you to practice new techniques as you learn them, so that when you complete the course you will have a final presentation assembled, polished and ready to go.

  • EGW120 Lean Engineering

    During this course attendees will: Gain an understanding of what a lean business system is and how engineering can fully contribute to the system; Be able to critically assess their business continuous improvement system; Understand the benefits of taking an end to end view of the business processes; Be introduced to a range of process diagnostic tools and apply one to a real business situation; Understand what the key improvement tools are and where they can best be applied; Gain an understanding of how to design and implement an improvement programme/project; Understand what is required of them to effectively lead and coach improvement.

  • EGW121 An Introduction to Business Law for Engineers

    An Introduction to Business Law for Engineers (Law for non-Lawyers) This module will provide participants with an understanding of: - Contract, Tort and Employment Law - How Law governs your business - How to manage the Law process

  • EGW122 Statistics for Engineers

    Statistics for Engineers is aimed at helping engineers to identify and deliver process improvements. Whether you are looking to monitor rejects or test failures from a production line; complete yield counts or cost comparisons, this module is designed to provide support. In addition to formal teaching, ideas will be discussed and a number of exercises will be used to illustrate the techniques being developed.

  • EGW123 Safety Criticality for Engineers

    This course is aimed at engineers who design, maintain or support production processes. It is designed to provide the skills needed to ensure safe and reliable operations.

  • EGW124 Plant Monitoring and Operation

    This module looks at condition monitoring and fault identification in plant machinery. In particular you will learn about failure mode and effects analysis (FMEA); various monitoring techniques including vibration, acoustic emission, pressure and temperature; types of fault in machines; signal analysis; standards; strategies for implementing a monitoring scheme.

  • EGW125 Energy Management

    Energy management is becoming a key skill in business today as a result of: - Rising energy costs - The need for new sources of energy generation - Increasing government legislation, regulations and fiscal initiatives - New energy generation technologies - Profitability This course has been written specifically with the engineer in mind, to provide an appreciation of energy use.

  • EGW126 An Introduction to Fluid Systems

    This module is designed to help participants gain an understanding of Fluid Systems by considering: - The basic health and safety requirements associated with fluid systems - The function, operation and type of components and elements used within a fluid system - How to identify components of a fluid system such as pumps, control valves, filters, accumulators and pipework - Basic pipework and layout drawings - The characteristics of the fluid(s) concerned

  • EGW127 Enabling Change

    "Making sure your change programmed deliver the desire benefits" During this module you will gain an understanding of why change doesn't always work, understand the '3 Levels' approach and how it positively impacts change, consider the key features of successful change at all levels within a business and apply the appropriate approaches to your own organisation.

  • EGW128 The Role of Engineering within an Environmental Management System

    This module provides an introduction to the understanding of environmental management issues and systems such as ISO 14001 of Green Dragon BS 8555; together with an appreciation of how to make improvements. Due to Climate Change and other environmental issues, companies need to know and understand how to be compliant with the increasing raft of legislation and what steps they can take to eliminate pollution and drive forward business improvement.

  • EGW129 Key Management Skills for Engineers

    This module will explore the implications, responsibilities, challenges and opportunities for leaders. It will also provide a comprehensive overview with in-depth insights on how to approach a whole variety of problems and solve them - full of activity, participants will consider a variety of problems, how to solve them and how to prevent them. Negotiation skills make up the final element of the course.

  • EGW130 Quality Management Systems (ISO 9000 Series)

    An online module introducing the basics of Quality Management Systems (QMS), followed by a detailed look at the ISO 9000 Series of standards. The module describes why and how an organisation implements the ISO 9001 QMS, carries out continual improvement of the QMS, and how the auditing and certification processes are performed. Assessment is carried out via an online, multiple-choice exam upon completion of each of the 3 sections.

  • EGW131 Stress Analysis (Advanced)

    This module builds on the concepts of stress and strain for two and three-dimensional space for multi-axial loading conditions. The focus will primarily be on non-linear behaviour of materials and structures, in particular high temperature creep and high load plasticity. Residual stresses, springback and low cycle fatigue will also be discussed. Some guidance on the use of finite element analysis (FEA) for plasticity and creep problems will be provided. The module also includes numerical investigations of creep and plasticity using FEA.

  • EGW132 SolidWorks Essentials - Parts and Assemblies

    The goal of this course is to teach participants how to use SolidWorks mechanical design automation software to build parametric models of parts and assemblies. The focus of this course is on the fundamental skills and concepts central to the successful use of SolidWorks software. Solidworks Training Manuals are provided which will form an invaluable source of reference in the future.

  • EGW133 SolidWorks Drawings

    The goal of this module is to teach participants how to create drawings of parts and assemblies using SolidWorks mechanical design and automation software. The focus of this course is on the fundamental skills and concepts central to successfully making engineering drawings. Solidworks Training Manuals are provided which will form an invaluable source of reference in the future.

  • EGW134 Auditing of Management Systems for Continual Improvement

    With more engineering, industrial and commercial businesses adopting management standards, it is becoming more important that these are used as a key skill in businesses today. Typically the International Standards for Energy (ISO 50001), Quality (ISO 9001), Environmental Management (ISO 14001) and Health and Safety (OHSAS 18001) are being adopted by more businesses, to ensure compliance and continuous improvement. Companies large and small need key members of staff from different disciplines trained in auditing skills in order to assess: ¿ Management systems in place are compliant ¿ Planning and risk assessment are effective ¿ Staff training and awareness supports improvement ¿ Communication of management systems procedures ¿ Response to emergency situations ¿ Monitoring and continual improvement This course has been completely written specifically with the engineer in mind although it will be relevant to any business or industry sector.

  • EGW135 Environmental Management

    This module provides an introduction to the understanding of environmental management issues and systems such as ISO 14001, environmental policies and the roles and responsibilities of all staff together with an appreciation of how to make improvements.

  • EGW136 SolidWorks Routing - Piping and Tubing

    The aim of the course is to introduce the application of SolidWorks Routing mechanical design automation software to routed systems for tubing and piping.

  • EGW137 Administering SolidWorks Workgroup

    The aim of the module is to introduce the concepts of file management within SolidWorks. It includes explanations of the SolidWorks file structure, file references, file associativity, and how to manage a multi-user environment. This course will also focus on the fundamental skills and concepts central to the successful use of SolidWorks Workgroup PDM. The intended audience for this course is vault administrators.

  • EGW217 Stress Analysis (Advanced)

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Supervision

  • 'The characterisation of degradation in PVC-coated steels and the development of novel methods of detection' (current)

    Student name:
    EngD
    Other supervisor: Prof David Worsley
  • '''''''Experimental investigations into the behaviour of composite aircraft wing repairs''''''' (current)

    Student name:
    EngD
    Other supervisor: Prof Johann Sienz
  • Improving the manufacturing process of an industrial belt drive system (current)

    Student name:
    MSc
    Other supervisor: Dr Elizabeth Sackett
  • Stress Whitening in pre-coated steels and the effect of nano-particulate solution to prevent stress whitening (current)

    Student name:
    EngD
    Other supervisor: Prof David Gethin
  • Degradation Mechanisms on novel organic coated steel products (current)

    Student name:
    EngD
    Other supervisor: Dr Matthew Carnie
  • Numerical evaluation of the effect of volatile-free coatings on beverage can manufacturing processes (current)

    Student name:
    EngD
    Other supervisor: Dr Will Harrison
  • Development of novel thin ply technology for carbon fibre composite materials (current)

    Student name:
    EngD
    Other supervisor: Dr David Penney
  • Optimising Mobility Behaviour Of Polymer Coated Packaging Steel, Protact (Understanding, measure, improve). (current)

    Student name:
    EngD
    Other supervisor: Dr David Warren