REVIEW OF THE ENERGY LIMITERS APPROACH TO MODELING FAILURE OF RUBBER
REVIEW OF THE ENERGY LIMITERS APPROACH TO MODELING FAILURE OF RUBBER
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橡胶失效建模能量限制器方法的回顾
DOI：
10.5254/rct.13.87948
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发表时间：
2013
影响因子：
1.5
通讯作者：
K. Volokh
中科院分区：
文献类型：
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作者：
K. Volokh
非线性弹性理论描述橡胶的变形而不是失效，然而，实际上，橡胶确实会失效。在目前的工作中，我们回顾了一种新的方法，允许统一的超弹性理论与故障描述的能量限制器，我们讨论了这种统一的结果。首先，我们引入能量限制器的概念，它允许在弹性理论中执行故障描述。限制器提供了应变能的饱和值，从而指示可以由无限小的材料体积存储和耗散的最大能量。限制器是可以通过宏观实验校准的材料常数。其次，我们说明了新的方法与故障发生的预测，但其传播不跟踪的例子。例子包括裂纹萌生、空腔不稳定和充气膜破裂等问题。此外，传统的材料强度标准进行了重新评估。第三，T…
ABSTRACT Nonlinear theories of elasticity describe rubber deformation but not failure; however, in reality, rubbers do fail. In the present work, we review a new approach of energy limiters that allows for unifying hyperelasticity theories with failure descriptions, and we discuss results of this unification. First, we introduce the energy limiter concept, which allows the enforcement of failure descriptions in elasticity theories. The limiter provides the saturation value for the strain energy, hence indicating the maximal energy that may be stored and dissipated by an infinitesimal material volume. The limiter is a material constant that can be calibrated via macroscopic experiments. Second, we illustrate the new approach with examples in which failure initiation is predicted but its propagation is not tracked. Examples include the problems of crack initiation, cavity instability, and rupture of inflating membranes. In addition, the traditional strength-of-materials criteria are reassessed. Third, the t...