Investigations on the effect of shape of traction separation law on the results of cohesive zone model

M.Siddiqui, Rehan; Jadhav, Dipti; Raykar, Nilesh

doi:10.9790/1684-11645965

Cited by 1 publication

(1 citation statement)

References 13 publications

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“…The most popular shapes are bilinear (Alfano, 2006), polynomial (Needleman, 1987), exponential (De Moura et al, 2008), trapezoidal (De Moura et al, 2008, etc. The proper choice of the TSL can be crucial (Scheider and Brocks, 2003;Siddiqui et al, 2014). However, the bilinear model is commonly used due to its simplicity (Alfano, 2006).…”

Section: Cohesive Zone Model and Extended Finite Methodsmentioning

confidence: 99%

Static failure load predictions in notched steel components using a combined experimental-numerical approach

Smolnicki

Ptak

Lesiuk

2017

IJSI

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Purpose The combined numerical-experimental approach has been presented. The purpose of this paper is to determine the critical rupture load of the notched components based on the cohesive zone modeling (CZM). Design/methodology/approach The 42CrMo4 steel (in normalized state) state has been tested and modeled using an eXtended finite element method (xFEM) philosophy with the CZM approach. In order to validate the numerically obtained critical load forces the experimental verification was performed. Findings The critical loads were determined for various notch configurations. The numerical and experimental values were compared. Based on this, a good agreement between experimental and numerical data is achieved. The relative error does not exceed 7 percent. Practical implications The presented procedure and approach is effective and simple for engineering applications. It is worth to underline that the obtained critical load values for notched components require only the static tensile test results and implementation of the presented route in numerical FEM, xFEM environment. Originality/value The presented methodology is actual and still developed. The scientific and engineering value of the presented numerical procedure is high.

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