A parametrized continuum constitutive model for reinforced thermoplastic composites with mechanically interlocked interface

IF 3.4 3区工程技术 Q1 MECHANICS

International Journal of Solids and Structures Pub Date : 2024-07-24 DOI:10.1016/j.ijsolstr.2024.112994

Anmol Kothari , Istemi B. Ozsoy , Gang Li

引用次数: 0

Abstract

Reinforced thermoplastic composites (RTPC) exhibit weak interfacial strength due to the low surface energy of the polymer matrix. Recently, a concept of controlled mechanical interlocking was introduced that showed significant improvement in the interfacial shear strength with pure mechanical interlocking and no chemical bond/friction. In this paper, a parametrized continuum material model is developed through computational homogenization for an E-glass/polypropylene (PP) composite system with a mechanically interlocked interface. Such parametric models not only elucidate the effects of the microstructural parameters on the mechanical behavior of the material but also enables the optimization of the composite at the microstructure level.

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具有机械互锁界面的增强热塑性复合材料的参数化连续结构模型

由于聚合物基体的表面能较低，增强热塑性复合材料（RTPC）的界面强度较弱。最近，有人提出了受控机械互锁的概念，与纯机械互锁和无化学键/摩擦相比，该概念显著提高了界面剪切强度。本文通过对具有机械互锁界面的 E 玻璃/聚丙烯 (PP) 复合材料系统进行计算均质化，建立了参数化连续材料模型。这种参数化模型不仅能阐明微观结构参数对材料力学行为的影响，还能在微观结构层面对复合材料进行优化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Solids and Structures 物理-力学

CiteScore

6.70

自引率

8.30%

发文量

405

审稿时长

70 days

期刊介绍： The International Journal of Solids and Structures has as its objective the publication and dissemination of original research in Mechanics of Solids and Structures as a field of Applied Science and Engineering. It fosters thus the exchange of ideas among workers in different parts of the world and also among workers who emphasize different aspects of the foundations and applications of the field. Standing as it does at the cross-roads of Materials Science, Life Sciences, Mathematics, Physics and Engineering Design, the Mechanics of Solids and Structures is experiencing considerable growth as a result of recent technological advances. The Journal, by providing an international medium of communication, is encouraging this growth and is encompassing all aspects of the field from the more classical problems of structural analysis to mechanics of solids continually interacting with other media and including fracture, flow, wave propagation, heat transfer, thermal effects in solids, optimum design methods, model analysis, structural topology and numerical techniques. Interest extends to both inorganic and organic solids and structures.