Premium
The finite element solution of rapid cycling creep problems
Author(s) -
Ponter A. R. S.,
Brown P. R.
Publication year - 1978
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620120610
Subject(s) - creep , finite element method , parametric statistics , temperature cycling , structural engineering , stress (linguistics) , plane (geometry) , materials science , thermal , mechanics , mathematics , engineering , geometry , thermodynamics , composite material , physics , linguistics , statistics , philosophy
The paper describes a simplified finite element method for high temperature creep problems involving cyclic load and temperature. The principal assumptions, that the cycle time is small compared with characteristic material time scales, is appropriate for the moderate load levels which occur when structures are designed for life times measured in years and decades. Because of the simplicity of the method, thermal loading problems may be studied in some detail. A parametric study of a plane stress problem is presented. Characteristic deformation rates are related to reference stress and timperature quantities, thereby reducing the main features of the solution to a few important structural and material parameters.