Expansion/contraction of a spherical elastic/plastic shell revisited

Sergei Alexandrov, Alexander Pirumov, Yeau Ren Jeng

研究成果: Article同行評審

5 引文 斯高帕斯(Scopus)

摘要

A semi-analytic solution for the elastic/plastic distribution of stress and strain in a spherical shell subject to pressure over its inner and outer radii and subsequent unloading is presented. The Bauschinger effect is taken into account. The flow theory of plasticity is adopted in conjunction with quite an arbitrary yield criterion and its associated flow rule. The yield stress is an arbitrary function of the equivalent strain. It is shown that the boundary value problem is significantly simplified if the equivalent strain is used as an independent variable instead of the radial coordinate. In particular, numerical methods are only necessary to evaluate ordinary integrals and solve simple transcendental equations. An illustrative example is provided to demonstrate the distribution of residual stresses and strains.

原文English
頁(從 - 到)483-494
頁數12
期刊Continuum Mechanics and Thermodynamics
27
發行號3
DOIs
出版狀態Published - 2015 5月

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 材料力學
  • 物理與天文學 (全部)

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