2 research outputs found
Influences of finished geometry of specimen for compression test on the stability of testing and precision of measured stress and strain
This paper deals with the influence of the specimen geometry on the precision of measured stress-strain curve on the compression side. Cylindrical specimen is adopted after ASTM-E9 89a and laboratory experiment and elastic-plastic FEA are carried out to evaluate the influence of the degree of parallelism of end surfaces. Present tolerance value of 0.5/1000 for the inclination of end surface can be relieved up to 6/1000
Influences of finished geometry of specimen for compression test on the stability of testing and precision of measured stress and strain
This paper deals with the influence of the specimen geometry on the precision of measured stress-strain curve on the compression side. Cylindrical specimen is adopted after ASTM-E9 89a and laboratory experiment and elastic-plastic FEA are carried out to evaluate the influence of the degree of parallelism of end surfaces. Present tolerance value of 0.5/1000 for the inclination of end surface can be relieved up to 6/1000