2019_EJRNL_PP_YAZHOU_GUO_1.pdf
Terbatas Ratnasari
» ITB
Terbatas Ratnasari
» ITB
One of the most important issues related to adiabatic shear failure is the correlation among temperature
elevation, adiabatic shear band (ASB) formation and the loss of load capacity of the material. Our
experimental results show direct evidence that ASB forms several microseconds after stress collapse and
temperature rise reaches its maximum about 30 ?s after ASB formation. This observation indicates that
temperature rise cannot be the cause of ASB. Rather, it might be the result of adiabatic shear localization.
As such, the traditional well-accepted thermal-softening mechanism of ASB needs to be reconsidered.