Assessment of cracks under secondary and combined loading |
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| Affiliation: | 1. Department of Biotechnology, GLA University, Mathura 2801406, Uttar Pradesh, India;2. School of Civil, Mining and Environmental Engineering, University of Wollongong, Australia;3. Department of Civil Engineering, GLA University, Mathura 281406, Uttar Pradesh, India;4. Department of Zoology, Dayalbagh Educational Institute, Agra 282005, Uttar Pradesh, India;5. Department of Chemistry, GLA University, Mathura 2801406, Uttar Pradesh, India;6. Department of Civil Engineering, Shiv Nadar Institution of Eminence, Gautam Buddha Nagar, Uttar Pradesh 201314, India;7. Department of Applied Physics and Electronics, Umeå University, Umeå SE-90187, Sweden;8. WSP Research and Innovation, Lower Hutt 5012, New Zealand;1. School of Social Work, Western Michigan University, 1903 W. Michigan Ave, Kalamazoo, MI 49008, USA;2. College of Social Sciences, University of Ulsan, 93, Daehak-ro, Nam-go, Ulsan 44610, Republic of Korea;3. School of Social Work, Texas State University, Encino Hall Building Suite 150A, San Marcos, TX 78666, USA;4. Krieger School of Arts and Sciences, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, USA;1. Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers New Jersey Medical School and Rutgers Cancer Institute of New Jersey, Newark, NJ 07103, USA |
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| Abstract: | Following a recent presentation of methods for the assessment of defects under primary loading, proposals are made here for the extension of these methods to combined primary and secondary loading, without necessarily involving the excessive pessimism of treating the secondary loading as primary, but allowing for strain enhancement at reduced ligaments. Finite element calculations have shown that the proposals provide a pessimistic bound on the value of the contour integral J in the cases considered for a number of work-hardening relationships and geometries, including cases of elastic follow-up. |
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