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Prediction of Crack Propagation Rate and Stress Intensity Factor of Fatigue and Welded Specimen with a Two-Dimensional Finite Element Method

  • This paper presents the fundamental investigation on crack propagation rate (CPR) and Stress Intensity Factor (SIF) for a typical fatigue and welded specimens which are Compact Tension (CT) and Single Edge Notch Tension (SENT) as well as Butt and longitudinal T-joint. The material data of austenitic stainless steel SS316L was used to observe crack propagation rate with different initial crack length and different tensile load was used for the fracture mechanics investigation. The geometry of the specimens was modelled by using open source software CASCA while Franc 2D was used for post processing based on Paris Erdogan Law with different crack increment steps. The analysis of crack propagation using fracture mechanics technique requires an accurate calculation of the stress intensity factor SIF and comparison of the critical strength of the material (KIC) was used to determine the critical crack length of the specimens. it can be concluded that open source finite element method software can be used for predicting of fatigue life on simplified geometry.

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Author:Y.O. Busari, A. Ariri, Y.H.P. Manurung, D. Sebayang, M. Leitner, W.S.B.W. Zaini, M. A. B. M. Kamilzukairi, E. Celik
DOI original:https://doi.org/10.1088/1757-899X/834/1/012008
Parent Title (English):IOP Conference Series: Materials Science and Engineering, Volume 834, 6th International Conference on Advances in Mechanical Engineering 2019 (ICAME 2019) 14-16 August 2019, Kota Kinabalu, Sabah, Malaysia
Document Type:Conference Proceeding
Year of Completion:2020
Publishing Institution:Hochschule Hannover
Release Date:2021/03/30
Tag:finite element method
crack propagation rate; stress intensity factor
GND Keyword:Rissausbreitung; Spannungsintensitätsfaktor; Finite-Elemente-Methode
Link to catalogue:1758243015
Institutes:Fakultät II - Maschinenbau und Bioverfahrenstechnik
DDC classes:620 Ingenieurwissenschaften und Maschinenbau
Licence (German):License LogoCreative Commons - Namensnennung 3.0