Modal analysis of elastic-viscoplastic Timoshenko beam vibrations
作者： C. Adam
DOI: 10.1007/BF01172809
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摘要: A semi-analytic inelastic Timoshenko beam theory based on a modal solution is developed. Inelastic strains are equivalent to eigenstrains in an identical but entirely elastic background structure. Proper resultants of these eigenstrains, i.e. curvatures and averaged shear angels, defined. Deformations cross sectional due eigenstrain obtained by means proper dynamic Green's functions. Since the deformation structure elastic, linear methods become applicable time incremental procedure. In order enhance efficiency this domain algorithm, analytic quasistatic protion separated from solution. Rate dependence plastic considered, ductile damage model void growth taken into account. The intensity distribution priori unknown imposed angles determined constitutive law calculated iterative
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