Simplified constraint-modified failure assessment procedure for structural components containing defects

Research output: Contribution to conferencePaperAcademic

Abstract

Two basic procedures are currently available to determine the critical condition of a flawed structure, at which unstable crack extension may occur. The first method based on elastic-plastic fracture mechanics is accurate but requires a time consuming elastic-plastic finite element analysis. The second method estimates the critical condition with an interaction diagram between linear elastic fracture mechanics describing brittle fracture, and a limit load analysis of the net section, i.e. the un-flawed ligament. This method is simpler to use but has a lower level of accuracy. The current paper provides a third option, consisting of a constraint-modified failure assessment procedure. It uses a linear elastic solution for evaluating brittle fracture and a simplified elastic-plastic analysis for evaluating plastic collapse. This third option provides good agreement with three considered tests.
Original languageEnglish
Number of pages6
Publication statusPublished - 2019
Event3rd International Conference on Structural Integrity and Durability: Fatigue, Fracture and Failure - Dubrovnik, Croatia
Duration: 4 Jun 20197 Jun 2019
http://icsid2019.fsb.hr/index.php

Conference

Conference3rd International Conference on Structural Integrity and Durability
Abbreviated titleICSID2019
CountryCroatia
CityDubrovnik
Period4/06/197/06/19
Internet address

Bibliographical note

ISSN number 2584-3982

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  • Cite this

    Leonetti, D., Snijder, B., & Maljaars, J. (2019). Simplified constraint-modified failure assessment procedure for structural components containing defects. Paper presented at 3rd International Conference on Structural Integrity and Durability, Dubrovnik, Croatia.