Based on extraction method,tensile experimental technique of fiber bundles and statistical theory of fiber strength,a new method has been developed to test and characterize the in-situ strength of fiber in unidirectional fiber reinforced metal matrix composite.Experimental results show that the modulus and strength of in-situ fiber bundles are quite lower than that of original fiber bundles.It is mainly because some damage occurs during manufactore process.According to the statistical constitutive theory of fiber strength,the statistical parameters of original fiber and in-situ fiber are obtained.
Key words
T300 fiber /
in situ strength /
statistical analysis
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References
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