Interpretation of signals from dropweight impact tests

被引：43

作者：

Found, MS ^{[1
]}

Howard, IC ^{[1
]}

Paran, AP ^{[1
]}

机构：

[1] Univ Sheffield, Dept Engn Mech, SIRIUS, Sheffield S1 3JD, S Yorkshire, England

来源：

COMPOSITE STRUCTURES | 1998年 / 42卷 / 04期

关键词：

D O I：

10.1016/S0263-8223(98)00080-4

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

A spring-mass model has been developed to describe the dropweight impact response of CFRP panels. The model separates the effects of the main impact impulse, high frequency oscillations and free vibrations and can be used as a reliable guide for effective digital filtering of signals from dropweight impact tests. Whilst the model at present does not account for damage, the onset of high frequencies towards the peak impact force indicate the onset of damage in the panel. The oscillations become larger and extend over a wider plateau as the perforation threshold energy is approached. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.

引用

页码：353 / 363

页数：11

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