Abstract
The aims of the work were first to obtain the fatigue crack growth and life numerically and empirically and then compare the numerical results and experimental data. Grade 1 titanium plates with both symmetrically and anti-symmetrically waisted cracks were due to tension tests first to receive the load versus displacement diagrams and mechanical properties of strength and stiffness. Next from cyclic tests the load versus cycles curves were constructed and fatigue life obtained. The numerical analysis using finite element method and ANSYS workbench was to yield the numerical results of crack growth and life. From fracture mechanics, the critical crack length was considered as final failure, and then, the modified numerical results were received. The estimated crack growth rates showed that at high load ratios the rates were faster and the lives shorter; however, at low load rations both were reverse. The results in load versus cycles curves from two numerical method were found within acceptable errors with the experimental data.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
The authors would like to gratefully acknowledge the sponsorship from the Ministry of Science and Technology under the project number: MOST 109-2221-E-110-015.
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This work was supported by Ministry of Science and Technology under the project number: MOST 109-2221-E-110-015.
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by M-HRJ, Y-JW, Y-HW and W-PH. The first draft of the manuscript was written by M-HRJ, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Jen, MH.R., Wu, YJ., Wu, YH. et al. Numerical analysis and experimental verification on crack growth and fatigue life in double-edge cracked metal plates. J Braz. Soc. Mech. Sci. Eng. 45, 56 (2023). https://doi.org/10.1007/s40430-022-03982-1
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DOI: https://doi.org/10.1007/s40430-022-03982-1