To reveal the failure mode of blast door subjected to explosion wave of thermobaric bomb, separate reinforced concrete numerical model considering strain rate effects of blast door is established with the dynamic finite element software LS-DYNA. The explosion wave of thermobaric bomb is loaded on the blast door and the deflection and shear stress of the blast door are analyzed and compared with the shock wave of TNT. The results show that with the distance from explosion increasing, the failure mode of blast door under thermobaric bomb gradually changes from punching shear failure and mixed flexural-shear failure to flexural failure. The dynamic response of blast door is related to the high impulse of thermobaric bomb, and the damage of blast door under the thermobaric bomb is more serious than that under TNT. The velocity of mid span can be applied to estimate the failure mode of the blast door.
李秀地1，苗朝阳1，耿振刚1，杨 森2. 温压弹爆炸冲击波作用下防护门破坏模式研究[J]. 振动与冲击, 2016, 35(16): 199-203.
LI Xiu-di1, MIAO Chao-yang1, GENG Zhen-gang1, YANG Sen2 . Failure Mode of Blast Door Subjected to Explosion Wave of Thermobaric Bomb. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(16): 199-203.
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