Characterising and representing small crack growth in an additive manufactured titanium alloy

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Shamir, Muhammad and Zhang, Xiang and Syed, Abdul Khadar (2021) Characterising and representing small crack growth in an additive manufactured titanium alloy. Engineering Fracture Mechanics, 253. 107876. ISSN 0013-7944 (https://doi.org/10.1016/j.engfracmech.2021.107876)

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Abstract

The purpose of the research is to apply the modified Hartman-Schijve equation for predicting small crack growth rate in an additive manufactured titanium Ti-6Al-4V. Material constants in the equation were determined by long crack test data, and the threshold value of the stress intensity factor range was set to a small value. A small fatigue crack test was conducted to validate the fitted equation. Predicted fatigue life of another specimen configuration under bending load agreed well with the test result. The work shows that it may be possible to represent both small and long crack growth rates by the modified Hartman-Schijve equation with its material constants being determined by long crack test.

  • Item type:Article
    ID code:82300
    Dates:
    Date
    Event
    31 August 2021
    Published
    22 July 2021
    Published Online
    5 July 2021
    Accepted
    Subjects:Technology > Mechanical engineering and machinery
    Department:UNSPECIFIED
    Depositing user: Pure Administrator
    Date deposited:12 Sep 2022 10:18
    Last modified:18 Dec 2024 09:11
    URI:https://strathprints.strath.ac.uk/id/eprint/82300
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