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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/10807
Title: A new framework based on continuum damage mechanics and XFEM for high cycle fatigue crack growth simulations
Authors: Pandey V.B.
Singh I.V.
Mishra B.K.
Ahmad S.
Venugopal Rao A.
Kumar V.
Published in: Engineering Fracture Mechanics
Abstract: In this paper, we have developed a continuum damage mechanics (CDM) based methodology for high cycle fatigue crack growth simulations. A fatigue damage law is proposed and implemented in the framework of extended finite element method (XFEM). A new criterion is proposed based on damage evolution to identify the appropriate definition of stress triaxiality for acquiring the constraint effect on the stress state correctly. Few mesh regularization schemes are also employed for reducing the mesh sensitivity in the results. Simulations are performed on fracture specimens of different materials subjected to constant amplitude fatigue loading. The fatigue life of a turbine disc is also predicted under constant amplitude loading. The results obtained from present methodology (CDM and XFEM) are found in good agreement with the published experimental results. These simulations highlight that the continuum damage mechanics is a simple and effective tool to perform crack growth simulations under high cycle fatigue conditions. © 2018 Elsevier Ltd
Citation: Engineering Fracture Mechanics (2019), 206(): 172-200
URI: https://doi.org/10.1016/j.engfracmech.2018.11.021
http://repository.iitr.ac.in/handle/123456789/10807
Issue Date: 2019
Publisher: Elsevier Ltd
Keywords: Damage mechanics
High cycle fatigue crack growth
Non-local method
Stress triaxiality
XFEM
ISSN: 137944
Author Scopus IDs: 57191657852
57204061377
55578538300
56640431400
6505934338
57200714018
Author Affiliations: Pandey, V.B., Department of Mechanical and Industrial Engineering, Indian Institute of Technology RoorkeeUttarakhand, India
Singh, I.V., Department of Mechanical and Industrial Engineering, Indian Institute of Technology RoorkeeUttarakhand, India
Mishra, B.K., Department of Mechanical and Industrial Engineering, Indian Institute of Technology RoorkeeUttarakhand, India
Ahmad, S., Defence Metallurgical Research Laboratory, DRDO, Hyderabad, India
Venugopal Rao, A., Defence Metallurgical Research Laboratory, DRDO, Hyderabad, India
Kumar, V., Defence Metallurgical Research Laboratory, DRDO, Hyderabad, India
Funding Details: This work is financially supported by Defence Metallurgical Research Laboratory (DMRL), Defence Research and Development Organisation ( DRDO ), Hyderabad, through grant no. DGNSM/04/4019/DMR305/CARS/XFEM dated November 24, 2014. Appendix A.1
Corresponding Author: Singh, I.V.; Department of Mechanical and Industrial Engineering, Indian Institute of Technology RoorkeeIndia; email: indrafme@iitr.ac.in
Appears in Collections:Journal Publications [ME]

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