| 增量理论有限元解弹塑性问题的另一种方法 |
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| 引用本文： | 施泽华,毛国才. 增量理论有限元解弹塑性问题的另一种方法[J]. 河海大学学报(自然科学版), 1988, 0(6) |
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| 作者姓名： | 施泽华 毛国才 |
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| 作者单位： | 河海大学工程力学系，河海大学工程力学系 |
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| 摘 要： | 增量理论有限元是求解弹塑性问题的有效方法.对于每级荷载增量的取法,通常是将总荷载扣除弹性极限荷载后分成 n 级施加.本文介绍的山田法是在每级增量阶段内只让一个单元屈服,据此反推荷载增量,进而进行力学分析的方法.该法的最大特点是可利用电算来模拟加载试验过程.文中以平面问题为例介绍了山田法原理、计算步骤、程序框图及其算例.
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| 关 键 词： | 增量理论 有限单元法 山田法 |
A New Finite Element Method for Elasto-Plastic Problems in Increment Theory |
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| Shi Zehua Mao Guocai. A New Finite Element Method for Elasto-Plastic Problems in Increment Theory[J]. Journal of Hohai University (Natural Sciences ), 1988, 0(6) |
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| Authors: | Shi Zehua Mao Guocai |
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| Affiliation: | Shi Zehua Mao Guocai |
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| Abstract: | The finite element method in increment theory is an effecient one to solve elasto-plastie problems.To determine the incremental load in each step,usually,the difference between the total load and the elastic limit loadis divided into n steps.This paper introduces Yameda's method,in which only one element yield in each step and the load increment can be inversely deduced.The very important feature of this method lies in the capability of modelling the loading test process with computers.As examples,the principle for plane problems is discussed and the computational procedure and program flow chart are given. |
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| Keywords: | increment theory finite element method Yameda's method |
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