锥体接触宽度对冰排弯曲破坏模式影响的有限元分析 FEM ANALYSIS ON ICE-BENDING FAILURE MODE WITH WIDTH EFF

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锥体接触宽度对冰排弯曲破坏模式影响的有限元分析

FEM ANALYSIS ON ICE-BENDING FAILURE MODE WITH WIDTH EFFECT OF ICE-CONE INTERACTION

冰排在锥体上发生的弯曲断裂形式按其裂纹扩展形成可分为径向开裂型和环向开裂型两种.利用三维有限元数值分析,对不同接触宽度的冰与锥体相互作用过程进行了数值分析,得到了不同接触宽度下的冰排环向应力和径向应力的分布规律;给出了冰排所存在的两种弯曲破坏模式转变的接触宽度判断依据;并对两种断裂形式的产生机理进行了分析.

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作 者: 王刚 武文华 岳前进 WANG Gang WU Wen-hua YUE Qian-jin  
作者单位:王刚,WANG Gang(大连大学建筑工程学院,辽宁,大连,1166221;大连理工大学工业装备结构分析国家重点实验室,辽宁,大连,116024)水利论文K2T d\!jGa6Nn
武文华,岳前进,WU Wen-hua,YUE Qian-jin(大连理工大学工业装备结构分析国家重点实验室,辽宁,大连,116024) 
刊 名:工程力学  ISTIC EI PKU
英文刊名:ENGINEERING MECHANICS 
年,卷(期):2008 25(1) 
分类号:TU312+.1 
关键词:冰排   锥体   接触宽度   破坏模式   有限元  
机标关键词:锥体宽度对弯曲破坏破坏模式有限元分析三维有限元数值分析断裂形式相互作用过程判断依据模式转变裂纹扩展开裂径向应力环向应力分布规律产生机理 
基金项目:国家高技术研究发展计划(863计划) 
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