We propose a simple anisotropic elasto-plastic finite element model to quantify the deformation heterogeneity locally within the grains of a polycrystal under plastic deformation. The model is calibrated against the electron backscatter diffraction measurements on stainless steel under uniaxial tensile loading. The spatial model of the specimen is generated by Voronoi tessellation using initial random orientation of the grains. The calibration of the model is provided by statistical means by calculating and comparing the crystal deformation parameter, which quantifies the spread of the crystal orientation within individual grains from the central grain orientation. It is confirmed that this parameter has a good correlation to the degree of the plastic strain.
- Nuclear Engineering Division
- Power Division
Calibration of an Anisotropic Plasticity Finite Element Model of a Polycrystal in Uniaxial Tension Available to Purchase
El Shawish, S, Cizelj, L, & Simonovski, I. "Calibration of an Anisotropic Plasticity Finite Element Model of a Polycrystal in Uniaxial Tension." Proceedings of the 2012 20th International Conference on Nuclear Engineering and the ASME 2012 Power Conference. Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle, and Balance of Plant; Component Reliability and Materials Issues; Steam Generator Technology Applications and Innovations; Advanced Reactors and Near-Term Deployment; Reactor Physics, Neutronics, and Transport Theory; Nuclear Education, Human Resources, and Public Acceptance. Anaheim, California, USA. July 30–August 3, 2012. pp. 537-543. ASME. https://doi.org/10.1115/ICONE20-POWER2012-55173
Download citation file: