Parametric Study on Low-Velocity Impact (LVI) Damage and Compression after Impact (CAI) Strength of Composite Laminates

被引：11

作者：

Guo, Shuangxi ^{[1
]}

Li, Xueqin ^{[1
]}

Liu, Tianwei ^{[2
]}

Bu, Guangyu ^{[2
]}

Bai, Jiangbo ^{[2
,3
]}

机构：

[1] AVIC Mfg Technol Inst, Beijing 101300, Peoples R China

[2] Beihang Univ, Sch Transportat Sci & Engn, Beijing 100191, Peoples R China

[3] Beihang Univ, Jingdezhen Res Inst, Jingdezhen 333000, Peoples R China

来源：

POLYMERS | 2022年 / 14卷 / 23期

基金：

中国国家自然科学基金;

关键词：

low-velocity impact; compression after impact; composite; delamination; PLY-THICKNESS; FIBER; DELAMINATION; RESISTANCE; SIMULATION; BEHAVIOR; MODEL;

D O I：

10.3390/polym14235200

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A full-scale model for predicting low-velocity impact (LVI) damage and compression after impact (CAI) strength was established based on a subroutine of the material constitutive relationship and the cohesive elements. The dynamic responses of the laminate under impact load and damage propagation under a compressive load were presented. The influences of impact energy and ply thickness on the impact damage and the CAI strength were predicted. The predicted results were compared with the experimental ones. It is shown that the predicted value of the CAI strength is in good agreement with the experimental result. As the impact energy reaches a certain value, the CAI strength no longer decreases with the increase in the impact energy. Decreasing the ply thickness can effectively improve the damage resistance and CAI strength.

引用

页数：18

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