On elastic-plastic and creep fracture mechanics parameters estimates of non-idealized axial through-wall crack in pressurized pipe

Jeong, Si-Hwa; Won, Min‐Gu; Huh, Nam‐Su; Choi, Jae‐Boong; Kim, Woo‐Gon; Lee, Hyeong-Yeon

doi:10.1016/j.ijpvp.2020.104292

Cited by 1 publication

(1 citation statement)

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“…The ductile fracture mechanics parameters for the cracked pipes subjected to internal pressure is important in structural integrity assessment of defective components [8][9][10]. The safety assessment of these structures and the comprehension of failure mechanisms are essential to study the reliability of pipelines for the liquid or gas transport [11][12][13][14]. Probabilistic fracture mechanics is a means of quantifying the failure probability resulting from uncertainties in the values of the parameters used to perform a failure assessment of cracked structures through probabilistic analysis techniques [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Numerical prediction of the ductile damage for axial cracks in pipe under internal pressure

Fezazi

Mechab

Salem

et al. 2021

Frattura Ed Integrità Strutturale

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This study presents a numerical prediction of the ductile damage for axial cracks in pipe subjected to internal pressure. The three dimensional finite element methods used to evaluate the J-integral. The effect of the external radius (Rext),the thickness (t), length crack (a) , the applied loads (P) and the crack position of the pipes has studied. The Monte Carlo method was used to determine the probabilistic characteristics of the J-integral. It’s also used later to predict the failure probability based on initiation of the crack growth. We note that the crack size and the geometries of the pipe are an important factor influencing on the durability of the pipe.

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