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A novel test specimen for mixed mode I/II/III fracture study in brittle materials
  • reza jalayer,
  • Behnam Saboori,
  • M.R. Ayatollahi
reza jalayer
Iran University of Science and Technology

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Behnam Saboori
Iran University of Science and Technology
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M.R. Ayatollahi
Iran University of Science and Technology
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A new test specimen is proposed for investigation of mixed mode I/II/III fracture of materials. In the test specimen, by displacing the position of an inclined crack from the middle of the rectangular specimen, in addition to mode II loading, mixed mode I/III loading conditions are created under anti-symmetric four-point bending. To examine the applicability of the test set-up, the specimens made of PMMA (Polymethyl-methacrylate) with three crack angles and three different positions of crack with reference to the middle of the specimen are tested. The experimental fracture loads are compared with the theoretical predictions of the maximum principal stress fracture criterion. There is a satisfactory consistency between the test and theoretical results. Although the proposed test configuration has limitations in applying the mixed modes of I/III and II/III, it is an efficient test configuration easier and less expensive than other configurations utilizing complex crack geometry or complicated loading fixtures.
24 May 2022Submitted to Fatigue & Fracture of Engineering Materials & Structures
25 May 2022Submission Checks Completed
25 May 2022Assigned to Editor
29 May 2022Reviewer(s) Assigned
08 Jul 2022Review(s) Completed, Editorial Evaluation Pending
23 Nov 2022Editorial Decision: Revise Major
28 Jan 20231st Revision Received
28 Jan 2023Submission Checks Completed
28 Jan 2023Assigned to Editor
29 Jan 2023Reviewer(s) Assigned
31 Jan 2023Review(s) Completed, Editorial Evaluation Pending
05 Feb 2023Editorial Decision: Accept