An experimental investigation of the impact response of composite laminates

被引：222

作者：

Aktas, Mehmet ^{[1
]}

Atas, Cesim ^{[2
]}

Icten, Buelent Murat ^{[2
]}

Karakuzu, Ramazan ^{[2
]}

机构：

[1] Usak Univ, Dept Mech Engn, TR-64300 Usak, Turkey

[2] Dokuz Eylul Univ, Dept Mech Engn, TR-35100 Izmir, Turkey

来源：

COMPOSITE STRUCTURES | 2009年 / 87卷 / 04期

关键词：

Unidirectional glass/epoxy; Impact response; Damage modes; LOW-VELOCITY IMPACT; STACKING-SEQUENCE; DAMAGE; RESISTANCE; PLATES; PREDICTION; SHAPE;

D O I：

10.1016/j.compstruct.2008.02.003

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this study, the impact response of unidirectional glass/epoxy laminates has been investigated by considering energy profile diagrams and associated load-deflection curves. Damage modes and the damage process of laminates under varied impact energies are discussed. Two different stacking sequences, [0/90/0/90](s) and [0/90/+45/-45](s), were chosen in tests for comparison. All alternative method, based on variation of the excessive energy (E(e)) versus impact energy (E(i)), is presented to determine penetration threshold (Pn). The penetration threshold for stacking sequence [0/90/+45/-45](s) is found to be smaller than that of [0/90/0/90](s). The primary damage mode was found to be fiber fracture for higher impact energies; whereas, it was indentation resulting in delamination and matrix cracks for smaller impact energies. Contour plots of the overall damage areas are also depicted for several impact energies. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：307 / 313

页数：7

共 24 条

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[3]

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