Journal
PHYSICAL REVIEW LETTERS
Volume 122, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.015503
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Funding
- National Natural Science Foundation of China (NSFC) [11472227, 11672354, 11527803]
- 111 Project [B07050]
- NSFC [11802029]
- State Key Laboratory of Explosion Science and Technology [ZDKT18-03]
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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 mu 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.
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