平纹编织复合材料加筋壁板低速冲击及冲击后压缩性能多尺度分析

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (12) : 109-117.

论文

平纹编织复合材料加筋壁板低速冲击及冲击后压缩性能多尺度分析

王维韩1，侯玉亮1，赵巧莉2，刘雨桐3，李成1

作者信息 +

Multiscale modeling of the low-velocity impact and compression after impact behaviors of rib-stiffened plain woven composites

WANG Weihan1，HOU Yuliang1，ZHAO Qiaoli2，LIU Yutong3，LI Cheng1

Author information +

文章历史 +

摘要

本文通过构建平纹编织复合材料（Plain Woven Composites，PWC）的微/细/宏观多尺度模型，对复合材料T型和工型加筋壁板的低速冲击（Low-velocity Impact，LVI）和冲击后压缩（Compression After Impact，CAI）性能进行分析。根据PWC内部结构特征，构建微观和细观代表性体积单元（Representative Volume Element，RVE）模型，通过施加不同的载荷条件，预测其等效力学参数。同时，基于局部均匀化方法，将细观RVE模型转化为包含0°和90°子胞的等效交叉层合板（Equivalent Cross-ply Laminate，ECPL）胞元。通过ECPL胞元建立PWC加筋壁板的宏观分析模型，并进行LVI和CAI性能分析。首先进行了能量为8 J、10 J和12 J的LVI试验和多尺度模拟，研究了PWC加筋壁板在LVI载荷下的力学行为。随后，对不同能量冲击后的加筋壁板进行CAI试验和数值模拟，研究其冲击后压缩剩余力学性能和损伤行为。最后，通过对比分析不同能量冲击下的LVI和CAI试验和预测结果，发现多尺度模型对加筋壁板力学性能的预测误差均小于6%，验证了该多尺度模型的有效性。试验和预测结果表明，在CAI载荷作用下，PWC加筋壁板的蒙皮部分沿着冲击损伤的位置发生完全断裂，其中，纤维断裂和层间分层成为PWC加筋壁板的主要损伤形式。此外，工型加筋壁板表现出更好的抵抗压缩强度衰减能力。

Abstract

This study proposes multiscale models to investigate the low-velocity impact (LVI) and compression after impact (CAI) behaviors of plain woven composite (PWC) panels stiffened by T- and I-shaped ribs. Representative volume elements (RVEs) are constructed at the microscale and mesoscale to compute the effective properties of carbon-fiber yarns and PWC. Besides, in order to improve the computational efficiency without sacrificing the computational accuracy, an equivalent cross-ply laminate (ECPL) cell is introduced to represent the woven architecture using a local homogenization approach. Multiscale models of PWC panels stiffened by T- and I-shaped ribs are constructed to investigate the mechanical behavior and damage mechanisms. Initially, experimental and numerical tests with 8 J, 10 J and 12 J impact energies are performed to examine the LVI behavior of PWC rib-stiffened panels. Subsequently, the post-impact compressive behavior and properties are assessed by experimental and numerical CAI tests on these impacted panels. The dissimilarities between the experimental and numerical results are less than 6%, confirming the reliability of the proposed multiscale models. Moreover, the panels stiffened by I-shaped rib are found to exhibit better resistance to the compressive strength reduction due to LVI events. Besides, the primary damage modes of rib-stiffened PWC panels under LVI loads are matrix cracking and fiber breakage. In CAI cases, the existing impact damages are prone to lead to severe delamination within the rib-stiffened panels and accelerate final failure.

导出引用

王维韩1, 侯玉亮1, 赵巧莉2, 刘雨桐3, 李成1. 平纹编织复合材料加筋壁板低速冲击及冲击后压缩性能多尺度分析[J]. 振动与冲击, 2024, 43(12): 109-117

WANG Weihan1, HOU Yuliang1, ZHAO Qiaoli2, LIU Yutong3, LI Cheng1. Multiscale modeling of the low-velocity impact and compression after impact behaviors of rib-stiffened plain woven composites[J]. Journal of Vibration and Shock, 2024, 43(12): 109-117

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