... influenced by the ratio and difference of uniaxial yield strengths, in tension and compression, as well as by the softening parameters. © MCB UP Limited 2000 Strain Elastoplasticity Localization Benchmarking Stress Testing A number of yield criteria are available to model pressure...

...M.R. Ghasemi; E. Hinton; R.D. Wood This paper demonstrates the use of genetic algorithms (GAs) for size optimization of trusses. The concept of rebirthing is shown to be considerably effective for problems involving continuous design variables. Some benchmark examples are studied involving 4‐bar...

...S.W. Lee; J.W. Yoon; D.Y. Yang Two kinds of time integration methods; the dynamic explicit method and the static implicit method, have been compared, especially with emphasis on the shell formulations and the stress integration methods. Two methods have been applied to the benchmark problem named...