碳纤维增强树脂基层板应变率相关损伤数值研究

doi:10.13700/j.bh.1001-5965.2016.0846

北京航空航天大学学报 ›› 2017, Vol. 43 ›› Issue (4): 694-700.doi: 10.13700/j.bh.1001-5965.2016.0846

碳纤维增强树脂基层板应变率相关损伤数值研究

彭亮, 黄文博, 毛伟, 赵美英

西北工业大学航空学院, 西安 710072

收稿日期:2016-11-03 出版日期:2017-04-20 发布日期:2017-01-13
通讯作者: 赵美英,E-mail:zhaomeiying@nwpu.edu.cn E-mail:zhaomeiying@nwpu.edu.cn
作者简介:彭亮男,博士研究生,讲师。主要研究方向:复合材料结构损伤。;黄文博男,硕士研究生。主要研究方向:航空复合材料结构冲击损伤。;毛伟男,硕士研究生。主要研究方向:复合材料结构损伤。;赵美英女,博士,教授,博士生导师。主要研究方向:航空复合材料结构。
基金资助:
国家自然科学基金（11502205）

Numerical study for damage of carbon fiber reinforced resin matrix laminates related to strain rates

PENG Liang, HUANG Wenbo, MAO Wei, ZHAO Meiying

College of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China

Received:2016-11-03 Online:2017-04-20 Published:2017-01-13

摘要/Abstract

摘要： 为了研究高应变率载荷对于碳纤维增强树脂基复合材料变形破坏行为的影响，通过应变率修正式对复合材料的刚度与强度进行修正，建立了可考虑应变率效应的复合材料损伤数值模型，采用该模型对不同应变率条件下层板结构的面内破坏行为进行了模拟并与文献实验进行了对比分析。计算结果表明：本文所构建的数值模型可以有效预测树脂基层板结构在不同应变率条件下的破坏特征，并在材料刚度与强度硬化现象的预测方面有着较高精度；对于0°、90°铺层主导的试件，由于其力学性能近似为线性，数值模型在强度预测方面获得了较高精度；而对于±45°铺层主导试件，其在不同应变率条件下表现出较强的非线性损伤特性，因此模型在其强度性能预测方面存在一定误差。

关键词: 复合材料, 层板, 应变率效应, Hashin准则, 损伤演化

Abstract: In order to study the effect of high strain rate loading on the deformation and failure of carbon fiber reinforced resin matrix composites, a numerical damage model, in which the stiffness and strength of composite material were modified by the strain rate correction method, was established in consideration of the strain rate effect. The in-plane failure behavior of the laminar structure under different strain rate conditions was simulated and compared with the literature experiment. The results show that the numerical model constructed in this paper can effectively predict the failure characteristics of the resin base plate structure under different strain rate conditions, and has high accuracy in predicting the stiffness and strength hardening phenomenon. For the specimen dominated by 0° and 90° layer, because of the quasi-linear mechanical properties, the numerical model obtains high accuracy in strength prediction; however, for ±45° layer dominant specimen, it exhibits the characteristics of strong nonlinear damage under different strain rate conditions, so the model has some errors in its strength prediction.

Key words: composite, laminates, strain rate effect, Hashin criteria, damage evolution

中图分类号:

V214.8

彭亮, 黄文博, 毛伟, 赵美英. 碳纤维增强树脂基层板应变率相关损伤数值研究[J]. 北京航空航天大学学报, 2017, 43(4): 694-700.

PENG Liang, HUANG Wenbo, MAO Wei, ZHAO Meiying. Numerical study for damage of carbon fiber reinforced resin matrix laminates related to strain rates[J]. JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2017, 43(4): 694-700.

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碳纤维增强树脂基层板应变率相关损伤数值研究

Numerical study for damage of carbon fiber reinforced resin matrix laminates related to strain rates

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