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Experimental investigations and damage growth modeling of EN‐AW 2024 aluminum alloy under LCF loading accounting creep pre‐deformation
Abstract
This article presents the results of experimental tests of creep rupture and of low-cycle fatigue (LCF) of EN-AW 2024 aluminum alloy devoid of damage and having preliminary damage. The preliminary damage was dealt in the process of creep at elevated temperature 100C, 200C, and 300C until achievement of two different strain values at each temperature. Samples with preliminary damage were subjected to fatigue tests at room temperature. Based on the results of experimental tests, a simple damage accumulation model was proposed for creep at different temperatures. In this model, growth of the damage state variable was made dependent on the current value of axial stress and on growth of plastic strain. This model was also adapted for description of damage accumulation in the process of LCF for both as-received material and material with creep pre-deformation. In both cases, that is, creep and LCF, the model's parameters were determined and it was experimentally verified.
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Authors (2)
-
Adam Tomczyk
- Białystok University of Technology
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1111/ffe.13768
- License
- Copyright (2022 John Wiley & Sons Ltd.)
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
no. 45,
pages 2703 - 2720,
ISSN: 8756-758X - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Tomczyk A., Seweryn A.: Experimental investigations and damage growth modeling of EN‐AW 2024 aluminum alloy under LCF loading accounting creep pre‐deformation// FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES -Vol. 45,iss. 9 (2022), s.2703-2720
- DOI:
- Digital Object Identifier (open in new tab) 10.1111/ffe.13768
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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