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摘要:
In this paper the ratcheting behavior of four pairs of stainless steel elbows is studied under conditions of steady internal pressure and dynamic conditions that induced out-of-plane external moments at frequencies typical of seismic excitations. The finite element analysis with the nonlinear kinematic hardening model has been used to evaluate ratcheting behavior of the piping elbows under mentioned loading condition. Material parameters have been obtained from several stabilized cycles of specimens that are subjected to symmetric strain cycles. The direction of maximum strain is at about 45° between the hoop and axial directions. The results show that the direction of highest ratcheting is along the hoop direction rather than the direction of maximum principal strain. Also, the initial rate of ratcheting is large and then it decreases with the increasing cycles. Also, the FE method gives over estimated values compared with the experimental data.
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篇名 The Ratcheting Behaviour of Stainless Steel Pressurized Piping Elbows Subjected to Dynamic Out-of-Plane Moments
来源期刊 现代机械工程(英文) 学科 数学
关键词 Stainless steel Piping ELBOWS RATCHETING KINEMATIC HARDENING Model OUT-OF-PLANE Moment
年,卷(期) 2014,(3) 所属期刊栏目
研究方向 页码范围 125-132
页数 8页 分类号 O1
字数 语种
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研究主题发展历程
节点文献
Stainless
steel
Piping
ELBOWS
RATCHETING
KINEMATIC
HARDENING
Model
OUT-OF-PLANE
Moment
研究起点
研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
现代机械工程(英文)
季刊
2164-0165
武汉市江夏区汤逊湖北路38号光谷总部空间
出版文献量(篇)
141
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0
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