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A new approach to describe the elastic behavior of filled rubber-like materials under complex uniaxial loading
International Journal of Solids and Structures ( IF 3.6 ) Pub Date : 2020-10-01 , DOI: 10.1016/j.ijsolstr.2020.07.005
K.A. Mokhireva , A.L. Svistkov

Abstract The construction of a model capable of describing viscoelastic behavior of rubber-like materials is a challenging problem. Although this task can be simplified, if we restrict our consideration only to elastic behavior of the material, excluding all temporary (rate-dependent) effects. In practice, it can be achieved by testing polymer samples at very low loading rates. However, our research is devoted to the performance of complex experiments on uniaxial cyclic loading with different degrees of deformation of the samples, in which the arising stresses are considered as the sum of equilibrium (elastic) and dissipative (inelastic) terms. A series of experiments have been carried out on the samples of materials, which have identical matrices (styrene-butadiene rubber) but different degrees of filling with carbon black. The result of our research is the construction of a constitutive model, which can describe the elastic behavior of rubber-like materials taking account of the Mullins softening effect.

中文翻译:

一种描述在复杂单轴载荷下填充类橡胶材料的弹性行为的新方法

摘要 构建能够描述类橡胶材料粘弹性行为的模型是一个具有挑战性的问题。虽然这项任务可以简化,但如果我们将我们的考虑限制在材料的弹性行为上,排除所有临时(速率相关)效应。实际上,它可以通过以非常低的加载速率测试聚合物样品来实现。然而,我们的研究致力于对具有不同变形程度的样品进行单轴循环加载的复杂实验,其中产生的应力被视为平衡(弹性)和耗散(非弹性)项的总和。对具有相同基质(丁苯橡胶)但炭黑填充程度不同的材料样品进行了一系列实验。
更新日期:2020-10-01
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