DAMAGE DEVELOPMENT IN CARBON FIBER-REINFORCED POLYIMIDES IN FATIGUE LOADING AS A FUNCTION OF STRESS RATIO

被引：14

作者：

MAIER, G

OTT, H

PROTZNER, A

PROTZ, B

机构：

[1] Wehrwissenschafliches Inst fuer, Materialuntersuchungen, West Ger, Wehrwissenschafliches Inst fuer Materialuntersuchungen, West Ger

来源：

COMPOSITES | 1986年 / 17卷 / 02期

关键词：

FAILURE ANALYSIS - PLASTICS - Acoustic Emission Testing - PLASTICS; REINFORCED - Carbon Fiber - POLYIMIDES - Reinforcing;

D O I：

10.1016/0010-4361(86)90248-X

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Carbon fiber-reinforced polyimide laminates of lay-up (O//2/ plus or minus 45/O//2/ plus or minus 45/90)//s have been fatigue tested at stress ratios of 0. 1 and minus 1. Damage propagation was monitored by recording the storage modulus and rate and amplitude of acoustic emission events. The results of these tests, along with X-ray and optical photographs of damaged specimens, indicate that damage propagates in three stages: the formation of transverse cracks on 45 degree and 90 degree plies, delamination from the transverse cracks and sample failure.

引用

页码：111 / 120

页数：10

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