strength criterion of porous media: application of homogenization techniques
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2017
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Abstract
The present paper aims at giving some general ideas concerning the micromechanical approach of the strength of a porous material. It is shown that its determination theoretically amounts to solving a nonlinear boundary value problem defined on a representative elementary volume (REV). The principle of nonlinear homogenization is illustrated based on the case of a solid phase having a Green's strength criterion. An original refinement of the so-called secant method (based on two reference strains) is also provided. The paper also describes the main feature of the Gurson's model which implements the principle of limit analysis on a conceptual model of hollow sphere. The last part of the paper gives some ideas concerning poromechanical couplings.
| Reference Key |
dormieux2017journalstrength
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|---|---|
| Authors | ;L. Dormieux;E. Lemarchand;D. Kondo;S. Brach |
| Journal | journal of neurotrauma |
| Year | 2017 |
| DOI |
10.1016/j.jrmge.2016.11.010
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