Network Polydispersity and Deformation‐Induced Damage in Filled Elastomers
Network Polydispersity and Deformation‐Induced Damage in Filled Elastomers
复制标题
填充弹性体中的网络多分散性和变形引起的损伤
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
A. Sarvestani
中科院分区：
文献类型：
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作者：
M. Tehrani;Mohammad Hossein Moshaei;A. Sarvestani
在聚合物网络的微观力学分析中，一个先验假设是本构聚合物链具有相等的长度。然而，链的单分散分布仅仅是一个简化的假设。本文放松了这一假设，并考虑了一个硫化网络与广泛的分布股线长度。根据该模型，本研究预测了具有随机内部结构的填充聚合物网络中的损伤起始和应力-拉伸依赖性。网络力学行为的退化被认为是由吸附到填料表面的股线的粘合失效控制的。这项研究表明，短的吸附股是罪魁祸首的损伤开始和他们的有限的延伸性是一个关键的决定因素的机械强度。
An a priori assumption in micromechanical analysis of polymeric networks is that the constitutive polymer strands are of equal length. Monodisperse distribution of strands, however, is merely a simplifying assumption. This paper relaxes this assumption and considers a vulcanized network with a broad distribution of strand length. In the light of this model, this study predicts the damage initiation and stress–stretch dependency in filled polymer networks with random internal structures. The degradation of network mechanical behavior is assumed to be controlled by the adhesive failure of the strands adsorbed to the filler surface. This study shows that the short adsorbed strands are the culprits for damage initiation and their finite extensibility is a key determinant of the mechanical strength.
影响因子：
10.8
作者：
Manohar S;Mantz AR;Bancroft KE;Hui CY;Jagota A;Vezenov DV
通讯作者：
Vezenov DV