基于微宏观有限元法的颗粒增强聚合物复合膜断裂损伤力学性能分析

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Modelling and Simulation in Materials Science and Engineering Pub Date : 2024-05-23 DOI:10.1088/1361-651x/ad4fac

Fangyun Kong, Xu Zhen, Yang Yuqi, Zhenqing Wang

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引用次数: 0

摘要

本文研究了颗粒增强及其对聚合物断裂破坏力学性能的相关影响。根据颗粒增强 PVDF 复合材料的单轴拉伸试验结果，得到了宏观弹塑性有限元模型和微观颗粒增强模型的参数。从宏观角度研究了边界条件、损伤缺口形状和尺寸对 PVDF 复合材料断裂损伤力学性能的影响。单轴拉伸力学性能和弹性模量随缺口角度的增加而增加。微观模型的损伤分析表明，当二氧化硅含量为 6% 时，复合材料的增强效果最佳。颗粒与基体之间的脱粘对裂纹扩展有很大影响。微观-宏观有限元模型是研究颗粒增强聚合物损伤力学性能的有效工具。

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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Analysis of Fracture Damage Mechanical Properties of Particle Reinforced Polymer Composite Film Based on Micro-macro Finite Element Method

The particle reinforcement and related effect on fracture damage mechanical properties of polymers have been studied in this paper. Based on the uniaxial tensile test result of particle reinforced PVDF composites, the parameters of macro elastic-plastic finite element model and the micro particle reinforced model are obtained. The effects of boundary conditions, shape and size of damage notch on fracture damage mechanical properties of PVDF composites are studied from macroscopic view. The uniaxial tensile mechanical properties and elastic modulus are increased with notch angle. The damage analysis of the micro model shows that the reinforcement of composite is best when the content of SiO2 is 6%. Debonding between particles and matrix indicates have great effect on crack propagation. The micro-macro finite element model is effective tool to study the damage mechanical properties of particle reinforced polymers.

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来源期刊

Modelling and Simulation in Materials Science and Engineering 工程技术-材料科学：综合

CiteScore

3.30

自引率

5.60%

发文量

审稿时长

1.7 months

期刊介绍： Serving the multidisciplinary materials community, the journal aims to publish new research work that advances the understanding and prediction of material behaviour at scales from atomistic to macroscopic through modelling and simulation. Subject coverage: Modelling and/or simulation across materials science that emphasizes fundamental materials issues advancing the understanding and prediction of material behaviour. Interdisciplinary research that tackles challenging and complex materials problems where the governing phenomena may span different scales of materials behaviour, with an emphasis on the development of quantitative approaches to explain and predict experimental observations. Material processing that advances the fundamental materials science and engineering underpinning the connection between processing and properties. Covering all classes of materials, and mechanical, microstructural, electronic, chemical, biological, and optical properties.