Static and dynamic nonlinear elastic-plastic analyses by the DQFDM along with a GSR-based accelerated constant stiffness equilibrium iteration technique

Chang-New Chen

Research output: Contribution to journalConference article

Abstract

Integrated numerical technique for static and dynamic non-linear structural problems adopting the equilibrium iteration is proposed. The differential quadrature finite element method (DQFEM) which uses the differential quadrature (DQ) techniques to the finite element discretization is used to analyze the static and dynamic nonlinear structural mechanics problems. Numerical time integration in conjunction with the use of equilibrium iteration is used to update the response history. The equilibrium iteration can be carried out by the accelerated iteration schemes. The global secant relaxation-based accelerated constant stiffness and diagonal stiffness-based predictor-corrector equilibrium iterations which are efficient and reliable are used for the numerical computations. Sample problems are analyzed. Numerical results demonstrate the algorithm.

Original languageEnglish
Pages (from-to)217-226
Number of pages10
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume385
Publication statusPublished - 1999 Dec 1
EventComputer Technology - 1999 (The ASME Pressure Vessels and Piping Conference) - Boston, MA, USA
Duration: 1999 Aug 11999 Aug 5

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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