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| Finite element analysis for viscoelastic large deformation dynamic response |
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| DOI：10.7511/jslx19944049 |
| KeyWord:finite element method,viscoelasticty,dynamic response/large deformation |
| Li Luxian Shen Yapeng |
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| Abstract: |
| Based on the Total Lagrangian(TL)incremental superimposing method,dynamic varia-tional equations for viscoelastic large deformation are derived by use of dynamic virtual equa-tions and single-integral-formed constitutive relations between Kirchhoff stresses and Greenstrains. According to these,making use of the Newmark algorithm and 8-node axi-symmet-ric and 3-D isoparametric elements,computer codes of dynamic responses for axis-symmetricand 3-D problems are developed.Numerical results for typical examples show that our analy-ses give a good agreement with the physical characteristics of the structures. |
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