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Evaluation of stress intensity factors for bimaterial bodies using numerical crack flank displacement data

✍ Scribed by R. E. Smelser

Publisher
Springer Netherlands
Year
1979
Tongue
English
Weight
430 KB
Volume
15
Category
Article
ISSN
1573-2673

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✦ Synopsis

Methods for obtaining stress intensity factors for bimaterial bodies using numerical crack flank displacement data are presented and compared. The stress analysis of a cracked bimaterial is reviewed. The analysis results in a data reduction scheme for the stress intensity factors via the crack flank displacement data. The data reduction scheme produces adequate resolution of the magnitude of the complex stress intensity factor but is incapable of resolving the angle when the moduli of the adjoining materials are close. An extended form of the J-integral is shown to provide increased accuracy for the magnitude of the complex stress intensity factor without yielding the angle.

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