PZT SENSORS APPROACHING FOR THE EVALUATION OF MULTIPLE IMPACT EFFECTS IN FIBRE GLASS COMPOSITE PLATES

被引：0

作者：

Santos, Mario ^{[1
]}

Santos, Jaime ^{[1
]}

Amaro, Ana ^{[2
]}

机构：

[1] Univ Coimbra, CEMUC, Dept Elect & Comp Engn, P-3000 Coimbra, Portugal

[2] Univ Coimbra, Dept Engn Mech, P-3000 Coimbra, Portugal

来源：

ICEM15: 15TH INTERNATIONAL CONFERENCE ON EXPERIMENTAL MECHANICS | 2012年

关键词：

Composites; Damage; Low velocity impact; PZT; LOW-VELOCITY IMPACT; DAMAGE;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, it is proposed a new approach to analyse multiple impact effects in fibre glass composite plates by means of PZT sensors. Four sets of samples fabricated with different size and stacking sequences were used. Impact tests were carried out using a pressure-assisted drop-weight test machine. The used impact energy levels are proportional to the plate thickness. PZT sensors were bonded to the plates in a pitch-and-catch configuration and the Lamb wave symmetrical mode (S-0) signal was selected due to its better propagation properties. The results have showed that the evaluation of the severity of multiple impact defects is possible with the proposed technique.

引用

页数：7

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