IMPACT FRACTURE TOUGHNESS TEST OF CERAMIC REINFORCED METALSReport as inadecuate




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Abstract : Impact frature toughness tests are performed at room temperature and 200°C by using the one-point-bending impact system. Young-s modulus and Poisson-s ratio of the tested materials are measured at each test temperature to determine the stress intensity factor accurately. Yield stress of the tested materials is measured to calculate the stress intensity factor with plastic zone correction. Also static fracture toughness tests are performed to compare the dynamic with static fracture toughness data. It is found that the impact fracture toughness of the tested materials decreases with increasing test temperature and, furthermore, that the fracture toughness increases with increasing loading rate.





Author: S. Takahashi K. Kishimoto S. Aoki

Source: https://hal.archives-ouvertes.fr/



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