In this paper, decomposition of the total strain into elastic and plastic parts is investigated for extension of elastic-type constitutive models to finite deformation elastoplasticity. In order to model the elastic behavior, a Hookean-type constitutive equation based on the logarithmic strain is considered. Based on this constitutive equation and assuming the deformation theory of Hencky as well as the yield criteria of von Mises, the elastic-plastic behavior of materials at finite deformation is modeled in the case of the proportional loading. Moreover, this elastoplastic model is applied in order to determine the stress distribution in thick-walled cylindrical pressure vessels at finite deformation elastoplasticity.
Constitutive Law of Finite Deformation Elastoplasticity With Proportional Loadings
Institute for Nano Science and Technology,
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received September 21, 2012; final manuscript received May 12, 2013; published online September 18, 2013. Assoc. Editor: Albert E. Segall.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Darijani, H., and Naghdabadi, R. (September 18, 2013). "Constitutive Law of Finite Deformation Elastoplasticity With Proportional Loadings." ASME. J. Pressure Vessel Technol. December 2013; 135(6): 061201. https://doi.org/10.1115/1.4024581
Download citation file:
- Ris (Zotero)
- Reference Manager