Lu Wang, Guangyan Liu, Yanan Yi, Shaopeng Ma*
The International Conference on Computational & Experimental Engineering and Sciences, Vol.21, No.2, pp. 31-31, 2019, DOI:10.32604/icces.2019.04974
Abstract Nuclear graphite is a key material in high temperature gas-cooled reactors. The evaluation of its damage evolution is of great importance for safety assessment of nuclear graphite structures. However, the damage properties of nuclear graphite are difficult to characterize by the traditional testing approaches, i.e., uniaxial tension and compression tests due to the inconvenience of conducting uniaxial tension/compression tests. In this paper, an inverse method was developed to identify the damage parameters of a nuclear graphite material IG11. The method is based on the non-contact digital image correlation and finite element model updating techniques, and damage-induced nonlinear stress-strain curves for… More >
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