Alternate compression test method for notched and unnotched composites

被引：0

作者：

Univ of California Santa Barbara, Santa Barbara, United States ^{[1
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机构：

来源：

International SAMPE Symposium and Exhibition (Proceedings) | 2000年 / 45卷

关键词：

Carbon fiber reinforced plastics - Compression testing - Load testing - Nonmetallic matrix composites - Stress analysis;

D O I：

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摘要：

An alternate compression fixture that can be used for compression and open hole compression (OHC) testing is introduced and discussed. This UCSB fixture has several features that set it apart from others, including the well-established Suppliers of Advanced Composite Materials Association (SACMA) fixture. Some of the UCSB fixture's features are: i) Supportive extensions on the ends of the fixture act as self-contained bearing surfaces for the specimen. ii) The specimen is end- and side-loaded. iii) A reduced combined thickness of the specimen and the fixture allows the use of most standard hydraulic grips. iv) A lighter, smaller fixture facilitates testing. Compressive strength data for notched and unnotched carbon fiber reinforced polymer matrix composites (PMC) are presented and compare favorably to results obtained using different fixtures, including the SACMA fixture. In the experimental series of OHC tests discussed herein, maximum stress values were all grouped within 6% of the highest value for each test group.

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