破力 meaning in English

failure stress
fracture mechanics

The four opponent powers ,
能破力四.防护力。
Textiles - bursting properties of fabrics - part 1 : hydraulic method for determination of bursting strength and bursting distension iso 13938 - 1 : 1999 ; german version en iso 13938 - 1 : 1999
纺织品.织物破裂特性.第1部分:胀破强度和胀破力测定
Textiles - bursting properties of fabrics - part 2 : pneumatic method for determination of bursting strength and bursting distension iso 13938 - 2 : 1999 ; german version en iso 13938 - 2 : 1999
纺织品.织物胀破特性.第2部分:胀破强度和胀破力测定