轴向压应力作用下薄壁筒壳双轴热棘轮效应机理研究

MECHANISM OF BIAXIAL THERMAL RATCHETING DEFORMATION IN THIN-WALLED CYLINDRICAL SHELLS

Centre of Boiler & Pressure Vessel Supervision and Research of P. R. C.;2. Dalian University of Technology

摘要: 本文通过循环受载轴对称弹塑性有限元计算,详细阐述了内压及轴向压应力作用下薄壁筒壳(双轴问题)R₁型、R₂型热棘轮变形机理。
- 热棘轮效应 /
- 塑性变形 /
- 应变累积 /
- 应力 /
- 循环载荷 /
- 应力循环
Abstract: In this paper, thermal Ratcheting mechanism R₁ and R₂ (stress/strain variational process and its regularity) in the thin-walled cylindrical shells subjected to biaxial stress and cyclic temperature distribution has been investigated by using elastic-plastic finite element analysis under cyclic loading.
- Ratchting /
- plastic deformation /
- strain accumulation /
- stresses /
- cyclic loads /
- stress cycle