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Strain Energy Density-Predicted Brittle Fracture of U-Notched Components Under Combined Tension/Tear Loading

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Strength of Materials Aims and scope

The study is aimed at experimental verification of the validity of the averaged strain energy density criterion in predicting the brittle fracture of U-notched components under combined tension/tear loading. The fracture experiments are carried out on U-notched rectangular polymethyl methacrylate samples using an improved loading fixture, capable of testing the cracked and notched samples under various combinations of tension and out-of-plane shear. The samples with three different notch tip radii are tested to evaluate the radius effect on their load-carrying capacity. Theoretical and experimental results show that the above criterion can provide satisfactory estimation of the fracture loads applied to notched specimens and is efficient enough in predicting the brittle fracture of U-notched PMMA members under combined tension/tear loading.

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Authors and Affiliations

  1. Fracture Research Laboratory, Faculty of New Sciences & Technologies, University of Tehran, Tehran, Iran

    A. R. Torabi

  2. Fatigue and Fracture Research Laboratory, Center of Excellence in Experimental Solid Mechanics and Dynamics, School of Mechanical Engineering, Iran University of Science and Technology, Narmak, Tehran, Iran

    B. Saboori

  3. Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway

    F. Berto & N. Razavi

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  1. A. R. Torabi
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Correspondence to A. R. Torabi.

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Translated from Problemy Prochnosti, No. 1, pp. 5 – 15, January – February, 2021.

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Torabi, A.R., Saboori, B., Berto, F. et al. Strain Energy Density-Predicted Brittle Fracture of U-Notched Components Under Combined Tension/Tear Loading. Strength Mater 53, 1–10 (2021). https://doi.org/10.1007/s11223-021-00255-5

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