Low velocity impact damage evaluation in fiber glass composite plates using PZT sensors

被引：41

作者：

Santos, M. J. ^{[1
]}

Santos, J. B. ^{[1
]}

Amaro, A. M. ^{[2
]}

Neto, M. A. ^{[2
]}

机构：

[1] Univ Coimbra, Dept Elect & Comp Engn, CEMUC, Polo Ii, Portugal

[2] Univ Coimbra, Dept Mech Engn, CEMUC, Polo Ii, Portugal

来源：

COMPOSITES PART B-ENGINEERING | 2013年 / 55卷

关键词：

Polymer-matrix composites (PMCs); Defects; Impact behaviour; Ultrasonics; DELAMINATION DETECTION; LAMB WAVES; BEHAVIOR; IDENTIFICATION; PREDICTION; STRENGTH; LIFE;

D O I：

10.1016/j.compositesb.2013.06.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work PZT sensors are proposed to characterize the impact effects in fiber glass composite plates. To provide effective and reliable results the analysis was accomplished on samples submitted to multiple impacts, then guaranteeing the same testing conditions for different impact levels. The analysis of the impact effect has been made by two parameters; amplitude response and time shift. PZT sensors have been bonded to the samples in a pitch-and-catch configuration and the Lamb wave symmetrical mode (S-0) signal was used. The results demonstrate that the two evaluated parameters are able to characterise the different damage types occurring in these composites, as well as to evaluate their severity. It was also observed that amplitude predict well the defect size, whenever fiber-breakage occurs. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：269 / 276

页数：8

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