I) A homogenization model for particulate composites; II) Spherical indentation of poroelastic layers

Add to your list(s) Download to your calendar using vCal

• Dr Matteo Galli, CUED
• Friday 17 October 2008, 14:00-15:00
• Oatley Seminar Room, Department of Engineering.

If you have a question about this talk, please contact Ms Helen Gardner.

A technique to generate three-dimensional microstructural models for the homogenization of the mechanical properties of particle reinforced composites is proposed. Particles are created in an already existent tetrahedral mesh of a cubic domain. Therefore, models for materials with different compositions can be developed from the same discretization. The model is tested by performing homogenization of the elastoplastic behaviour of a typical particle reinforced metal matrix composite. To assess the representative volume element size a criterion based on the steadiness of the average elastic energy related to residual stresses is proposed. Examples of applications of the model to real materials are provided.

Indentation testing of a finite poroelastic layer is considered. By adopting nondimensional parameters it is possible to build a library of master curves which represent the test response as a function of the test profile and of the material properties. Such an approach allows conducting material parameter identification without the need for inverse FE analysis, allowing for rapid analysis of large numbers of indentation tests.

Matteo Galli is currently working with Michelle Oyen. He holds a M.S. degree in Civil Engineering from Politecnico di Milano, Italy, and a Ph.D. degree in Mechanics from EPFL , Switzerland.

This talk is part of the Engineering - Mechanics and Materials Seminar Series series.

This talk is included in these lists:

• All Talks (aka the CURE list)
• Cambridge University Engineering Department Talks
• Cambridge talks
• Centre for Smart Infrastructure & Construction
• Computational Continuum Mechanics Group Seminars
• Engineering - Mechanics and Materials Seminar Series
• Engineering - Mechanics, Materials and Design (Div C) - talks and events
• Featured lists
• Interested Talks
• Lennard-Jones Centre external
• Oatley Seminar Room, Department of Engineering
• School of Technology
• Trust & Technology Initiative - interesting events
• bld31

Note that ex-directory lists are not shown.