Transverse impact behaviors of four-step 3-D rectangular braided composites from unit-cell approach

被引：28

作者：

Zhang, Yan ^{[1
]}

Jiang, Lili ^{[1
]}

Sun, Baozhong ^{[1
]}

Gu, Bohong ^{[1
]}

机构：

[1] Donghua Univ, Coll Text, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai, Peoples R China

来源：

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES | 2012年 / 31卷 / 04期

基金：

美国国家科学基金会;

关键词：

four-step 3-D braided composite; impact behaviors; unit-cell model; finite element analysis; HIGH-VELOCITY IMPACT; BALLISTIC PERFORATION; TEXTILE COMPOSITES; STRAIN-RATE; FAILURE; PENETRATION;

D O I：

10.1177/0731684412437269

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Transverse impact behaviors of 3-D carbon/epoxy braided composite are reported in experimental and finite element analysis (FEA) approaches. In the experimental approach, the quasi-static penetration and transverse impact behaviors were tested to obtain load-displacement curves and fracture morphologies of the braided composite. In FEA, a unit cell model was established to derive the constitutive equation and failure criteria. Based on the model, a user-defined material subroutine (VUMAT) was written and connected with commercial FEA code ABAQUS/Explicit to calculate the impact damage. Good agreements between the experimental and FEA results prove the validity of the unit cell model and the subroutine VUMAT.

引用

页码：233 / 246

页数：14

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