深水爆炸下凸型加筋锥柱壳结构的破坏模式  

Failure Modes of Ring-stiffened Convex Cone-cylinder in Deep Underwater Explosion

作　　者：梁浩哲[1] 张庆明[1] 龙仁荣[1] 任思远[1] LIANG Haozhe;ZHANG Qingming;LONG Renrong;REN Siyuan(State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China)

机构地区：[1]北京理工大学爆炸科学与技术国家重点实验室,北京100081

出　　处：《兵工学报》2021年第5期987-996,共10页Acta Armamentarii

摘　　要：水深是深潜装备在水中爆炸时结构动态响应的重要影响因素,深水爆炸条件下深潜装备结构的动态响应是深潜装备防护设计的重要基础。以典型深潜装备的防护需求为背景,研究加筋锥柱凸结构在深水爆炸载荷下的破坏模式。进行500 m水深范围内加筋锥柱凸结构的爆炸实验,并利用ABAQUS数值仿真方法得到了多种工况下结构的动态响应过程。根据结构变形量和破坏程度,获得了加筋锥柱凸结构包含肋间壳板凹陷变形、壳板与肋骨协同变形和压溃撕裂破坏的3种破坏模式,揭示了不同破坏模式之间的演变与转化机理。结果表明:随着水深、冲击因子的增加,加筋锥柱凸结构的变形破坏结果更加严重,破坏模式的演变与转化过程更加复杂。The dynamic response of submarine structure at underwater explosion(UNDEX),which is significantly affected by the depth of water,is the basis of submarine safety design.Based on the protection of typical submarine structure in deep underwater explosion(D-UNDEX),the failure modes of the ring-stiffened convex cone-cylinder in D-UNDEX are studied.The D-UNDEX experiment with the maximum water depth of 500m was completed.The dynamic response process of convex cone-cylinder under various conditions was obtained by ABAQUS numerical simulation method.Based on the deformation and failure degree of the structure,three failure modes of ring-stiffened convex cone-cylinder were obtained,and the evolution and transformation processes of different failure modes were revealed.The results show that,with the increase in water depth and shock factor,the deformation and failure results of ring-stiffened convex cone-cylinder are more serious,and the evolution and transformation processes of failure mode are more complex.

关 键 词：加筋锥柱凸结构 深水爆炸 破坏模式 深潜装备 

分 类 号：O383[理学—流体力学]