Numerical simulation and experiment of low-velocity impact on stitched foam core sandwich composites

被引：0

作者：

Zou R. ^{[1
]}

Liu H. ^{[1
]}

Lai J. ^{[1
]}

Yu S. ^{[1
]}

Chen L. ^{[1
]}

机构：

[1] Polymer Processing Research Lab, School of Mechanical and Electric Engineering, Nanchang University, Nanchang

来源：

Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2016年 / 32卷 / 09期

关键词：

Intralaminar property; Low-velocity impact; Numerical simulation; Stitched foam core sandwich composite; Stitching resin column;

D O I：

10.16865/j.cnki.1000-7555.2016.09.017

中图分类号：

学科分类号：

摘要：

A dynamics finite element model was established for the stitched foam core sandwich composite laminate under low velocity impact in ABAQUS. The stitching resin columns were described as truss elements in the model. Hashin failure was used to predict the intralaminar damage of laminate, and crushable foam model with isotropic hardening was used to predict the evolution of foam damage. The low-velocity impact response and damage of stitched/unstitched foam core sandwich structure were simulated by this method. The numerical results well agree with the experimental results and it verified the effectiveness and accuracy of the model. The results show that under the low-velocity impact the foam core sandwich structure added suture line can reduce the foam cushioning effect to get larger impact damage on the surface of laminate but it can increase the ability of laminates deformation resistance to get smaller damage of the inner laminate. It can not only improve the defect of laminate easy-layered but also still has excellent intralaminar property. © 2016, Editorial Board of Polymer Materials Science & Engineering. All right reserved.

引用

页码：96 / 102

页数：6

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