Evaluation of the Effective Mechanical Properties of a Particle-Reinforced Polymer Composite with Low-Modulus Inclusions

IF 1.8 4区材料科学 Q2 MATERIALS SCIENCE, CHARACTERIZATION & TESTING

Physical Mesomechanics Pub Date : 2024-10-24 DOI:10.1134/S1029959924050072

M. P. Danilaev, S. A. Karandashov, V. A. Kuklin, I. N. Sidorov, A. I. Enskaya

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Abstract

Adequate mathematical models of the mechanical properties of particle-reinforced polymer composites (PRPCs) require verification, which is difficult to do for at least the following reasons: lack of information on the mechanical characteristics of the transition layer formed at the modified particle–polymer interface, and lack of information about the mechanical characteristics of agglomerates that inevitably form during PRPC fabrication. This paper proposes a mathematical model for calculating the effective mechanical properties (bulk modulus, shear modulus, Young’s modulus, and Poisson’s ratio) of PRPCs with encapsulated filler particles. The model is verified on PRPC specimens with inclusions in the form of air bubbles. Simplified equations are derived for calculating the effective mechanical properties of PRPCs with low-modulus inclusions in the form of air bubbles. It is shown that the proposed model provides reliable estimates of the bulk modulus, shear modulus, Young’s modulus, and Poisson’s ratio of PRPCs at a small relative volume of submicron-sized filler particles in the matrix.

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评估带有低模量夹杂物的颗粒增强聚合物复合材料的有效力学性能

颗粒增强聚合物复合材料（PRPC）机械特性的适当数学模型需要验证，而验证工作很难进行，原因至少有以下几点：缺乏有关改性颗粒-聚合物界面过渡层机械特性的信息，以及缺乏有关 PRPC 制造过程中不可避免形成的团聚体机械特性的信息。本文提出了一个数学模型，用于计算带有封装填料颗粒的 PRPC 的有效机械特性（体积模量、剪切模量、杨氏模量和泊松比）。该模型在含有气泡形式夹杂物的 PRPC 试样上得到了验证。得出了简化方程，用于计算含有气泡形式低模量夹杂物的 PRPC 的有效力学性能。结果表明，当基体中亚微米级填料颗粒的相对体积较小时，所提出的模型能可靠地估计 PRPC 的体积模量、剪切模量、杨氏模量和泊松比。

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

Physical Mesomechanics Materials Science-General Materials Science

CiteScore

3.50

自引率

18.80%

发文量

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related in the physical mesomechanics and also solid-state physics, mechanics, materials science, geodynamics, non-destructive testing and in a large number of other fields where the physical mesomechanics may be used extensively. Papers dealing with the processing, characterization, structure and physical properties and computational aspects of the mesomechanics of heterogeneous media, fracture mesomechanics, physical mesomechanics of materials, mesomechanics applications for geodynamics and tectonics, mesomechanics of smart materials and materials for electronics, non-destructive testing are viewed as suitable for publication.