Professor Eduardo De Souza Neto

Professor Eduardo De Souza Neto
Chair
Engineering
Telephone: (01792) 295256
Room: Academic Office - A_134
First Floor
Engineering Central
Bay Campus

Research

Multi-scale modelling of solids is an area of increasing interest within the applied and computational mechanics community. Multi-scale concepts allow the development of new models to describe the constitutive behaviour of solids by including information at two or more physical scales. Development of models of this type, in particular with the use of computational homogenisation methods based on Finite Element procedures, is currently under way.

An application of particular interest is the modelling and simulation of biological tissues in general. Such materials posses in general intricate microstructures that lead to complex macroscopic behaviour. Multi-scale methods are currently being used in this context in the modelling of human artery constitutive response. Further use of multi-scale methodologies is being made in the modelling of polycrystalline metals as well as in heat conduction problems in general. New recent research directions in this field include the prediction of the sensitivity of macroscopic material properties to topological microstructural changes, calculated by means of the so-called topological derivative concept. Such procedures will lead in the near future to new techniques for microstrucural optimisation.

Computational multi-scale techniques lead to formidable tasks from the computing point of view. Therefore, the overall efficiency of the multi-scale framework needs to be optmised to allow its use in the solution of practical problems. In this context, computational techniques stemming from the expertise of this research group are under development, which so far have produced substantial reductions in computing time. Further developments are foreseen in the near future.

Publications

  1. & Constitutive modelling of mechanically induced martensitic transformations. Engineering Computations 35(2), 772-799.
  2. & The Method of Multiscale Virtual Power for the derivation of a second order mechanical model. Mechanics of Materials
  3. & Multiscale formulation for material failure accounting for cohesive cracks at the macro and micro scales. International Journal of Plasticity 76, 75-110.
  4. & Variational Foundations and Generalized Unified Theory of RVE-Based Multiscale Models. Archives of Computational Methods in Engineering 23(2), 191-253.
  5. & Modeling of unilateral effect in brittle materials by a mesoscopic scale approach. Computers and Concrete 15(5), 735-758.

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Teaching

  • EG-M25 Advanced Structural Analysis

    The module develops theory and associated solution techniques relevant to structural problems related to plates, shells and solid applications. The basic theoretical concepts are firstly introduced and the underlying governing equations then developed. The first topic considered is the elastic theory of plate bending, which is of fundamental importance in the design and analysis of a large class of engineering structures. This is followed by the limit analysis of plate structures, which is of prominence in reinforced concrete design. A central aspect of the course is the treatment of the membrane analysis of shell structures. Most shell structures operate by their resistance to membrane action, rather than bending, and the course develops solution procedures for a range of practical shell structure applications encountered in both civil and mechanical engineering environments. The course concludes by developing solution strategies for structures subjected to torsion, with particular emphasis placed on the analysis of thin walled structures, such as those encountered in bridge deck construction and aerospace applications.

  • EGIM18A MRes Research Project (Computer Modelling)

    The student will gain experience in working independently on a substantial, individually assigned task, using accepted planning procedures. It will require and develop self-organisation and the critical evaluation of options and results, as well as developing technical knowledge in the chosen topic.

Supervision

  • 'Investigating the Use of Crystal Plasticity Finite Element (CPFE) Modeling to Determine Ballistic Performance of Novel Titanium Alloys' (current)

    Student name:
    EngD
    Other supervisor: Prof Johann Sienz
  • A computational multiscale approach to the modelling of discrete and particulate media (current)

    Student name:
    PhD
    Other supervisor: Prof Wulf Dettmer
  • Aspects of RVE-based computational multiscale modelling of solids (current)

    Student name:
    PhD
    Other supervisor: Prof Yuntian Feng
  • ''Towards a Predictive Multi-Scale Thermodynamically Consistent Constitutive Model for Mechanically -Induced Martensitic Phase Transformations (awarded 2017)

    Student name:
    PhD
    Other supervisor: Prof Djordje Peric