A damage directional constitutive model for Mullins effect with permanent set and induced anisotropy

A stress softening, commonly known as the Mullins effect, is observed usually in filled rubberlike materials after the first load. Experimental observations have shown that the Mullins effect induces a permanent set and some anisotropy. In order to account for these two features, a strain energy den...

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Bibliographic Details
Published in:European journal of mechanics, A, Solids A, Solids, 2006-05, Vol.25 (3), p.483-496
Main Authors: Diani, J., Brieu, M., Vacherand, J.M.
Format: Article
Language:English
Subjects:
Anisotropy
Applied sciences
Elastomers
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Industrial polymers. Preparations
Mullins effect
Physics
Polymer industry, paints, wood
Rubber
Solid mechanics
Static elasticity (thermoelasticity...)
Structural and continuum mechanics
Technology of polymers
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Summary:A stress softening, commonly known as the Mullins effect, is observed usually in filled rubberlike materials after the first load. Experimental observations have shown that the Mullins effect induces a permanent set and some anisotropy. In order to account for these two features, a strain energy density is proposed, which is based on material directions and coupled with a theory for network alteration. The constitutive law is based on a macromolecular approach, and the network alteration theory is motivated physically. The model has been compared to experimental data successfully.
ISSN:0997-7538
1873-7285
DOI:10.1016/j.euromechsol.2005.09.011