Ductile fracture of commercial purity titanium at room temperature |
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| Authors: | G. Shatil,& D.J. Smith |
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| Affiliation: | Faculty of Engineering, University of the West of England, Bristol, UK;Department of Mechanical Engineering, University of Bristol, UK |
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| Abstract: | An experimental and numerical program was carried out to examine and assess the deformation and fracture behaviour of alloys of commercial purity (CP) titanium. The material rate-dependent deformation under constant displacement rates and under sustained loads was directly simulated in finite element analyses using an implemented unified material model. The simulations predicted the fracture of compact tension specimens subjected to J – R tests and sustained load tests employing a dimensional analysis and strain-hardening approach. Differences between two batches with different oxygen contents were examined and the limitation of the material model was investigated. |
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| Keywords: | commercial purity titanium creep and relaxation ductile fracture rate-dependent deformation resistance curves visco-plastic model |
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