Unconditionally Stable Staggered Algorithm for Transient Finite Element Analysisof Coupled Thermoelastic Problems (Final Report, July 1989)

摘要

An unconditionally stable second order accurate implicit-implicit staggeredprocedure for the finite element solution of fully coupled thermoelasticity transient problems is proposed. The procedure is stabilized with a semi-algebraic augmentation technique. A comparative cost analysis reveals the superiority of the proposed computational strategy to other conventional staggered procedures. Numerical examples of one and two-dimensional thermomechanical coupled problems demonstrate the accuracy of the proposed numerical solution algorithm.