The Trousers Fracture Test for Viscoelastic Elastomers
The Trousers Fracture Test for Viscoelastic Elastomers
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粘弹性体裤型断裂试验
DOI：
10.1115/1.4062140
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Lopez-Pamies, Oscar
中科院分区：
文献类型：
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作者：
Shrimali, Bhavesh;Lopez-Pamies, Oscar
Shrimali 和 Lopez-Pamies（2023 年，“粘弹性弹性体的‘纯剪切’断裂测试及其对 Griffth 断裂的启示”，Extreme Mech. Lett., 58, p. 101944）最近表明，控制粘弹性弹性体裂纹扩展的 Griffith 临界条件可以简化为仅涉及弹性体固有断裂能 Gco 的基本形式，在此过程中，他们解决了历史上难以捉摸的临界撕裂能 Tc 概念的完整描述。本文（可以视为该系列的第三部分）的目的是利用这种基本形式来解释用于探测粘弹性弹性体裂纹扩展的最流行的断裂试验之一，即裤型试验。
Shrimali and Lopez-Pamies (2023, “The ‘Pure-Shear’ Fracture Test for Viscoelastic Elastomers and Its Revelation on Griffth Fracture,” Extreme Mech. Lett., 58, p. 101944) have recently shown that the Griffith criticality condition that governs crack growth in viscoelastic elastomers can be reduced to a fundamental form that involves exclusively the intrinsic fracture energy Gcof the elastomer, and, in so doing, they have brought resolution to the complete description of the historically elusive notion of critical tearing energy Tc. The purpose of this article—which can be viewed as the third installment of a series—is to make use of this fundamental form to explain one of the most popular fracture tests for probing the growth of cracks in viscoelastic elastomers, the trousers test.