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The poker-chip experiments of Gent and Lindley (1959) explained
Journal of the Mechanics and Physics of Solids ( IF 5.3 ) Pub Date : 2021-02-12 , DOI: 10.1016/j.jmps.2021.104359
Aditya Kumar , Oscar Lopez-Pamies

Despite being commonly credited with initiating the field of cavitation in elastomers, the famed poker-chip experiments of Gent and Lindley (1959) have yet to be fully explained. One likely reason for their elusiveness is that it had long been presumed that cavitation in elastomers was a phenomenon that could be explained solely on the basis of the elasticity of the elastomer at hand. Of late, full-field analyses and experiments carried out at high spatiotemporal resolution have impugned such a belief by indicating, instead, that cavitation in elastomers is first and foremost a fracture phenomenon. In that spirit, Kumar, Francfort, and Lopez-Pamies (2018) have introduced a comprehensive macroscopic phase-field theory for the nucleation and propagation of fracture in elastomers undergoing arbitrarily large quasistatic deformations. The purpose of this paper is to deploy this theory in order to explain in a detailed and quantitative manner the seminal poker-chip experiments of Gent and Lindley.



中文翻译:

Gent和Lindley(1959)的扑克筹码实验解释了

尽管通常被认为是引发弹性体中空化作用的领域,但Gent和Lindley(1959)著名的扑克筹码实验尚未得到充分的解释。它们难以捉摸的一个可能原因是,长期以来人们一直认为,弹性体中的气穴现象是一种现象,只能根据现有弹性体的弹性来解释。最近,以高时空分辨率进行的全场分析和实验通过表明弹性体中的空化首先是断裂现象,而破坏了这种观点。本着这种精神,Kumar,Francfort和Lopez-Pamies(2018)引入了一种全面的宏观相场理论,用于在经历任意大的准静态变形的弹性体中成核和断裂扩展。

更新日期:2021-02-16
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