Abstract
A model taking into account unilateral contact condition, friction and adhesion is presented. In the framework of continuum thermodynamics, the contact zone is considered as a material surface and the local constitutive laws are derived by choosing conveniently two specific surface potentials. The adhesion is characterized by a variable β, introduced by Frémond (1987), which represents the intensity of adhesion. A quasistatic variational formulation and an incremental one are proposed. A numerical method is given to solve the problem. The model is used to simulate an indentation experiment which is conducted to characterize the behaviour of fiber/matrix interfaces in a ceramic composite.
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More From: Comptes Rendus de l'Academie des Sciences Series IIB Mechanics Physics Chemistry Astronomy
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