DETECTION OF DEBONDING DAMAGE IN A COMPOSITE PLATE THROUGH NATURAL FREQUENCY VARIATIONS

被引：36

作者：

PAOLOZZI, A

PERONI, I

机构：

[1] Università degli Studi “La Sapienza”, Via Eudossiana 16, 00184 Roma, Italy

来源：

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES | 1990年 / 9卷 / 04期

关键词：

D O I：

10.1177/073168449000900405

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

In the present paper several finite element models suitable for delamina tion damage analysis have been used. Frequency shift diagrams for modes up to 24 with severity of damage up to 15 % have been studied. A correlation between the peaks in the diagrams reporting frequency shifts vs. order of the mode, and the extension of the delami nation is proposed. It is also pointed out the different behaviour of the sensitivities in rela tion with the kind of damage: delamination or thickness reduction. Finally the cross-over phenomenon is shown. © 1990, SAGE PUBLICATIONS. All rights reserved.

引用

页码：369 / 389

页数：21

共 12 条

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