Finite Element Analysis of Influence of Non-homogenous Temperature Field on Designed Lifetime of Spatial Structural Elements under Creep Conditions

Abstract

The techniques of modeling of continual fracture process for spatial bodies under long-term static force loading condition in non-homogenous temperature field are presented. The scalar damage parameter is used to describe the material continual fracture process. A stress-strain problem solution made with semianalytic finite element method (SFEM). Results of lifetime determination of responsible parts are presented.

Keywords

• long-term loading condition
• creep
• damage
• continual fracture
• lifetime
• spatial problem
• semianalytic finite element method (sfem)
• 74c10
• 74r99
• 74s05
• 74d10