journal article Apr 14, 2021

Interfacial fracture toughness measurement of welded Babbitt alloy SnSb11Cu6/20Steel

View at Publisher Save 10.1111/ffe.13466
Abstract
AbstractThe interface fracture toughness of SnSb11Cu6/20steel was measured by calculating the critical energy release rate and stress phase angle of the interface crack. A three‐point bending test was used to introduce cracks into the bonding interface, and the cohesion model of the bonding interface was established through experimental data. Through finite element analysis of load‐deflection curves with and without interface crack propagation, the crack initiation point is found. Then the energy calculation model of crack propagation is established, and the critical energy release rate is obtained using the virtual crack growth criterion. The calculation results of the stress phase angle show that the crack propagation is greatly affected by the normal stress after the babbitt alloy layer fractures. If the strength of the substrate material is weaker, the crack will continue to expand in the tangent perpendicular to the crack tip.
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Metrics
10
Citations
28
References
Details
Published
Apr 14, 2021
Vol/Issue
44(7)
Pages
1837-1849
License
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Funding
National Natural Science Foundation of China Award: General Program No. 51875382 and Key Program No. 52035006
Cite This Article
Yuepeng Gao, Jianmei Wang, Yuyang Liu (2021). Interfacial fracture toughness measurement of welded Babbitt alloy SnSb11Cu6/20Steel. Fatigue & Fracture of Engineering Materials & Structures, 44(7), 1837-1849. https://doi.org/10.1111/ffe.13466