拉压性能不同材料厚壁圆筒和厚壁球壳的极限压力分析

THE ANALYSIS OF LIMIT INNER PRESSURE OF THICK WALLED TUBE AND SPHERE SHELL WITH DIFFERENT STRENGTH IN TENSION AND COMPRESSION BY THEORY OF GENERALIZED TWIN SHEAR STRESS STRENGTH

本文用广义双剪应力强度理论对拉压性能不同的材料制成的厚壁圆筒和厚壁球壳进行了弹塑性应力分析，得出与拉压比有关的弹性极限内压力、塑性极限内压力、弹塑性区的应力以及弹塑性内压力与弹塑性半径之间的关系式．

In this paper elastoplastic stress analyses for thick-walled tube and sphere shell with different strength in tension and compression are conducted using the theory of generalized twin shear stress strength.They include elastic limiting inner pressure,plastic limiting inner pressure,elastoplastic stress,and the relation between inner pressure and elastoplastic zoned radius of thick-walled tube and sphere shell.These results are dependent on tension-compression ratio of the material.The calculated limiting inner pressures are higher than the results by Mohr strength theory.