On micromechanical-statistical modeling of microscopically damaged interfaces under antiplane deformations

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:51

Article

Wang, Xue¹  Fan, Hui¹  Ang, Whye-Teong¹ 

[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Div Engn Mech, Singapore 639798, Singapore

关键词: Micromechanics;    Microscopically damaged interface;    Effective stiffness;    Hypersingular integral equations;   

DOI  :  10.1016/j.ijsolstr.2014.03.001

来源: Elsevier

【 摘 要 】

A microscopically damaged interface between two elastic half-spaces under anti-plane deformations is modeled using randomly distributed interfacial micro-cracks. The micro-crack length is a continuous random variable following a given probability distribution. The micromechanical-statistical model of the interface, formulated and solved in terms of hypersingular integral equations, is used to estimate the effective stiffness of the interface. The number of micro-cracks per period length of the interface required to homogenize the effective interface stiffness is examined. Also investigated are the effects of the micro-crack length and the crack-tip gap between two neighboring micro-cracks on the effective stiffness. (C) 2014 Elsevier Ltd. All rights reserved.

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