钢构件在循环大应变作用下的有限元分析
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摘要
采用混合强化本构关系、剪切厚壳单元及Ｕ．Ｌ．方法对钢构件循环加载进行了有限元 分析，并编制了相应的计算程序，用于模拟地震作用下钢构件的滞回性能。通过与其它分析 方法及试验的分析比较，证明了该程序具有较高的精度，适用于板、壳及组合体的强度和稳 定及循环加载问题的分析。
The present research work aims at simulating the hysteresis behavior of steel members under the action of earthquake and wind. An algorithm is developed in which a degenerated shall element is used to study the steel members under cyclic loads based on the Updated Lagrange Method. By comparing the numerical results with other available solutions, it is found that the present algorithm offers accurate results and can be used to study the hysteresis behavior of steel plates and shells and even their composites under cyclic loads.
The present research work aims at simulating the hysteresis behavior of steel members under the action of earthquake and wind. An algorithm is developed in which a degenerated shall element is used to study the steel members under cyclic loads based on the Updated Lagrange Method. By comparing the numerical results with other available solutions, it is found that the present algorithm offers accurate results and can be used to study the hysteresis behavior of steel plates and shells and even their composites under cyclic loads.
引文
[1]苏明周.箱形截面钢构件在地震作用下的相关屈曲破坏机理及抗震设计对策[D].西安:西安建筑科 技大学, 1999.
[2]董永涛,单向荷载和循环荷载作用下钢板件及板组的屈曲后性能研究[D].哈尔滨:哈尔滨建筑大学, 1995
[3] K. Axelsson. & A Samuelsson.Finite element. analysis of elastic - plastic materials displaying mixed hardening[J]. Int. J. Num. Meth. in Engng., 1979, 14: 211-215.
[4] W Prager. A new method of analyzing stresses and strains in work hardening solids[J]. J. Appl. Mech.Trans ASME, 1956, 23: 493-496.
[5]苏明周、喻岩.建筑用钢材单向拉伸的非线性应力、应变关系[J].西安建筑科技大学学报,1999, 31(1):25～28
[6] C Nyssen. An efficient and accurate iterative method, allowing large incremental steps, to solve elasto- plastic problems[J]. Comp. & Struct., 1981, 13: 63-71.
[7] M A Crisfield. Accelerating and damping the modified Newton-Raphson method[J].Comp.& Struct.,1984, 8(3): 359-407.
[8] D R J Owen, A Prakash & O C Zienkiewicz. Finite element analysis of non-linear composite materials bysue of overlay system[J]. Comp.& Struct., 1974, 4: 1251-1267.
[9] Y Fukumoto and H Kusama. Local instability tests of plate elements under cyclic uniaxial loading[J]. J. ofStruct. Engng., ASCE, 1985, 111(5): 1051-1067.
[2]董永涛,单向荷载和循环荷载作用下钢板件及板组的屈曲后性能研究[D].哈尔滨:哈尔滨建筑大学, 1995
[3] K. Axelsson. & A Samuelsson.Finite element. analysis of elastic - plastic materials displaying mixed hardening[J]. Int. J. Num. Meth. in Engng., 1979, 14: 211-215.
[4] W Prager. A new method of analyzing stresses and strains in work hardening solids[J]. J. Appl. Mech.Trans ASME, 1956, 23: 493-496.
[5]苏明周、喻岩.建筑用钢材单向拉伸的非线性应力、应变关系[J].西安建筑科技大学学报,1999, 31(1):25～28
[6] C Nyssen. An efficient and accurate iterative method, allowing large incremental steps, to solve elasto- plastic problems[J]. Comp. & Struct., 1981, 13: 63-71.
[7] M A Crisfield. Accelerating and damping the modified Newton-Raphson method[J].Comp.& Struct.,1984, 8(3): 359-407.
[8] D R J Owen, A Prakash & O C Zienkiewicz. Finite element analysis of non-linear composite materials bysue of overlay system[J]. Comp.& Struct., 1974, 4: 1251-1267.
[9] Y Fukumoto and H Kusama. Local instability tests of plate elements under cyclic uniaxial loading[J]. J. ofStruct. Engng., ASCE, 1985, 111(5): 1051-1067.
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