Impact damage processes in reinforced polymeric materials

被引：34

作者：

Dear, JP ^{[1
]}

Brown, SA ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, London SW7 2AZ, England

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2003年 / 34卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

polymer-matrix composites; impact behaviour; damage mechanics; mechanical testing; LOW-VELOCITY IMPACT; PREDICTION; COMPOSITES; MASS;

D O I：

10.1016/S1359-835X(03)00082-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study investigates the impact toughness of two grades of Sheet Moulding Compound (SMC) and one grade of Glass Mat Thermoplastic (GMT) material. A servo-hydraulic impact machine and a drop-weight impact facility are used to obtain and relate different degrees of deformation and penetration damage of the two grades of SMC and GMT materials to load displacement records. The servo-hydraulic impact data provides a step-by-step damage history of drop-weight impact penetration of these materials. The impact energy absorbed by the different composite materials is determined for different degrees of deformation and penetration of the specimens. Notable in the findings is that, in some cases, the onset of through-thickness damage can occur before there is visual evidence of surface damage at the point of contact between the striker and the specimen. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：411 / 420

页数：10

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