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A Miniaturized Thin-Plate Low Cycle Fatigue Test Method at Elevated Temperature
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  • Li M.,
  • Maskill S.,
  • Wen Z.X.,
  • Yue Z.F.,
  • Sun W.
Li M.
Northwestern Polytechnical University School of Mechanics Civil Engineering and Architecture

Corresponding Author:[email protected]

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Maskill S.
University of Nottingham Faculty of Engineering
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Wen Z.X.
Northwestern Polytechnical University School of Mechanics Civil Engineering and Architecture
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Yue Z.F.
Northwestern Polytechnical University School of Mechanics Civil Engineering and Architecture
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Sun W.
University of Nottingham Faculty of Engineering
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Abstract

This study aims to develop a high temperature LCF test method using a non-standard miniature thin-plate (MTP) specimen in order to characterize cyclic visco-plasticity behavior of component materials. For demonstration, fully reversed strain-range controlled LCF and creep-fatigue (CF) tests at 600 °C have been performed for a martensitic steel using both standard-sized full-scale (SSFS) and MTP specimens. A scaling factor is determined using cyclic visco-plastic finite element (FE) for geometry constraint evaluation and data conversion based on the reference strain approach. The equivalent energy principal is proposed to assess the geometry constraint effect that non-standard MTP specimen has. The high temperature LCF results from the MTP specimen based on the proposed testing methodology have shown a good agreement with SSFS specimen data under equivalent conditions. The methodology can therefore be used to conduct accurate transferability to achieve equivalent LCF behavior between the conventional standard specimen and the MTP specimen.
26 Oct 2021Submitted to Fatigue & Fracture of Engineering Materials & Structures
26 Oct 2021Submission Checks Completed
26 Oct 2021Assigned to Editor
30 Oct 2021Reviewer(s) Assigned
22 Nov 2021Review(s) Completed, Editorial Evaluation Pending
24 Nov 2021Editorial Decision: Revise Major
10 Jan 20221st Revision Received
10 Jan 2022Submission Checks Completed
10 Jan 2022Assigned to Editor
10 Jan 2022Reviewer(s) Assigned
12 Jan 2022Review(s) Completed, Editorial Evaluation Pending
14 Jan 2022Editorial Decision: Revise Major
19 Jan 20222nd Revision Received
19 Jan 2022Submission Checks Completed
19 Jan 2022Assigned to Editor
23 Jan 2022Review(s) Completed, Editorial Evaluation Pending
25 Jan 2022Editorial Decision: Accept