| 确定实际极限载荷的零曲率准则 |
| |
| 引用本文： | 章为民,陆明万.确定实际极限载荷的零曲率准则[J].固体力学学报,1989,10(2):152-160. |
| |
| 作者姓名： | 章为民 陆明万 |
| |
| 作者单位： | 清华大学
(章为民，陆明万)，清华大学(张如一) |
| |
| 摘 要： | 本文提出一种确定实际极限载荷的零曲率准则.做了六个球壳—接管钢制模型试验.利用这些试验结果和取自其它文献的试验数据对新准则和已被提出的各种准则进行了比较、讨论.结果表明:(1)零曲率点是实验曲线上的一个特征点,新准则是一种不含任意人为系数的客观准则.(2)用新准则确定的极限载荷的分散性比其他准则为小.
|
| 关 键 词： | 载荷 零曲率 塑性 |
A ZERO-CURVATURE CRITERION TO DETERMINE THE PRACTICAL COLLAPSE LOAD |
| |
| Zhang Weimin Lu Mingwan and Zhang Ruyi.A ZERO-CURVATURE CRITERION TO DETERMINE THE PRACTICAL COLLAPSE LOAD[J].Acta Mechnica Solida Sinica,1989,10(2):152-160. |
| |
| Authors: | Zhang Weimin Lu Mingwan and Zhang Ruyi |
| |
| Institution: | Tsinghua Universitu |
| |
| Abstract: | A zero-curvature criterion is proposed to determine the practical collapse load. Six tests have been carried out on spherical pressure vessels with cylindrical nozzle. Results of these tests and other experimental data quoted from different references are discussed in order to compare the new criterion with various previously proposed criteria. It is concluded that:(1)the zero-curvature point is a characteristic point of the experimental curve and that the new criterion is an objective criterion without any artificial coefficient. (2)the deviation of the collapse load estimated by the new criterion is smaller than that estimated by other criteria. |
| |
| Keywords: | Plasticity Limit analysis Collapse load Pressure vessel Experimental method |
| 本文献已被 CNKI 维普 等数据库收录！ |
