20th European Conference on Fracture (ECF20) A finite fracture approach for determining the fracture onset of a brazed SiC specimen
2014
The failure initiation of a brazed sample made of silicon carbide substrates and submitted to bending is analyzed with the help of a criterion which combines a maximum incremental energy release rate and a maximum tensile stress conditions. Two different m odes of cracking are considered to develop in the vicinity of the free edge between the brazed layer and the ceramic substrate: edge debonding and substrate cracking. The comparison of the predictions with the experimental results allows estimating the f racture properties of the bonding.
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