A new multiaxial fatigue damage model for various metallic materials under the combination of tension and torsion loadings |
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| Authors: | Jing Li Zhong-ping Zhang Qiang Sun Chun-wang Li Yan-jiang Qiao |
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| Affiliation: | 1. School of Aerospace Engineering and Applied Mechanics, Tongji University, 1239 Siping Road, Shanghai, PR China;2. Department of Mechanical Engineering, Pontifical Catholic University of Rio de Janeiro, Rua Marquês de São Vicente 225 – Gávea, Rio de Janeiro, RJ 22451-900, Brazil;1. School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;2. Department of Mechanical Engineering, Politecnico di Milano, 20156 Milan, Italy;3. INEGI, Faculty of Engineering, University of Porto, Porto 4200-465, Portugal;4. Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, 7491 Trondheim, Norway;1. Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Faculty of Engineering and Architecture, Ghent University, Belgium;2. Division of Computational Mechanics, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;3. Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;4. Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark Zwijnaarde 903, Zwijnaarde B-9052, Belgium;1. Department of Electrical Energy, Metals, Mechanical Constructions and Systems, Faculty of Engineering and Architecture, Ghent University, Belgium;2. Division of Computational Mechanics, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;3. Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;4. Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark Zwijnaarde 903, Zwijnaarde, B-9052, Belgium |
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| Abstract: | Based on the critical plane approach, a new damage parameter for multiaxial fatigue damage is presented. Both components of strain and stress are considered in this parameter. Thus, a new multiaxial fatigue damage model is given based on the critical plane approach. The capability of fatigue life prediction for the proposed fatigue damage model is checked against the experimental data of Hot-rolled 45 Steel, S460N Steel, 1045HR Steel, 30CrMnSiNi2A alloy steel, and GH4169 alloy at elevated temperature, and the predicted results are compared with results from common multiaxial fatigue model. It is demonstrated that the proposed criterion gives better satisfactory results for all the five checked materials. |
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