Evaluation of ductile tearing resistance of an interstitial free steel sheet using SENT specimens

S. K. Chandra; R. Sarkar; A. D. Bhowmick; P. S. De; P. C. Chakraborti; S. K. Ray

doi:10.1016/j.engfracmech.2020.107257

Evaluation of ductile tearing resistance of an interstitial free steel sheet using SENT specimens

S. K. Chandra, R. Sarkar, A. D. Bhowmick, P. S. De, P. C. Chakraborti, S. K. Ray

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

Ductile tearing resistance of a 1 mm thick interstitial free steel sheet has been characterized using single edge notched tensile (SENT) specimens with or without fatigue precracks at quasistatic strain rates. In this study, the critical Crack Tip Opening Angle (CTOA), and also crack initiation parameters, namely the initiation energy per unit ligament area (w_i), critical value for the J-integral (J_c), and critical crack tip opening displacement (δ_c) have been examined and compared with the corresponding parameters from the Essential Work of Fracture (EWF) method. Dependence of these parameters on specimen geometry has also been examined. The EWF paradigm has been extended to the initial mixed-constraint regime of crack extension. 3D cohesive zone modelling for flat fracture becomes reasonably successful in simulating crack growth in the SENT specimens.

Original language	English
Article number	107257
Journal	Engineering Fracture Mechanics
Volume	238
Early online date	9 Aug 2020
DOIs	https://doi.org/10.1016/j.engfracmech.2020.107257
Publication status	Published - 15 Oct 2020
Externally published	Yes

Bibliographical note

Funding Information:
The experimental work in this research was carried out in the DST-FIST sponsored equipment (Grant No. SR/FST/ETI-404/2015(c) ). Authors also thank TATA Steel Ltd., Jamshedpur, India for providing the required steel used in the present research.

Funding Information:
The experimental work in this research was carried out in the DST-FIST sponsored equipment (Grant No. SR/FST/ETI-404/2015(c)). Authors also thank TATA Steel Ltd. Jamshedpur, India for providing the required steel used in the present research.

Publisher Copyright:
© 2020 Elsevier Ltd

Keywords

Cohesive zone model
Crack tip opening angle
DENT
EWF method
Interstitial free (IF) steel
SENT
Tearing resistance

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1016/j.engfracmech.2020.107257

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abstract = "Ductile tearing resistance of a 1 mm thick interstitial free steel sheet has been characterized using single edge notched tensile (SENT) specimens with or without fatigue precracks at quasistatic strain rates. In this study, the critical Crack Tip Opening Angle (CTOA), and also crack initiation parameters, namely the initiation energy per unit ligament area (wi), critical value for the J-integral (Jc), and critical crack tip opening displacement (δc) have been examined and compared with the corresponding parameters from the Essential Work of Fracture (EWF) method. Dependence of these parameters on specimen geometry has also been examined. The EWF paradigm has been extended to the initial mixed-constraint regime of crack extension. 3D cohesive zone modelling for flat fracture becomes reasonably successful in simulating crack growth in the SENT specimens.",

keywords = "Cohesive zone model, Crack tip opening angle, DENT, EWF method, Interstitial free (IF) steel, SENT, Tearing resistance",

author = "Chandra, {S. K.} and R. Sarkar and Bhowmick, {A. D.} and De, {P. S.} and Chakraborti, {P. C.} and Ray, {S. K.}",

note = "Funding Information: The experimental work in this research was carried out in the DST-FIST sponsored equipment (Grant No. SR/FST/ETI-404/2015(c) ). Authors also thank TATA Steel Ltd., Jamshedpur, India for providing the required steel used in the present research. Funding Information: The experimental work in this research was carried out in the DST-FIST sponsored equipment (Grant No. SR/FST/ETI-404/2015(c)). Authors also thank TATA Steel Ltd. Jamshedpur, India for providing the required steel used in the present research. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

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AU - Chakraborti, P. C.

AU - Ray, S. K.

N1 - Funding Information: The experimental work in this research was carried out in the DST-FIST sponsored equipment (Grant No. SR/FST/ETI-404/2015(c) ). Authors also thank TATA Steel Ltd., Jamshedpur, India for providing the required steel used in the present research. Funding Information: The experimental work in this research was carried out in the DST-FIST sponsored equipment (Grant No. SR/FST/ETI-404/2015(c)). Authors also thank TATA Steel Ltd. Jamshedpur, India for providing the required steel used in the present research. Publisher Copyright: © 2020 Elsevier Ltd

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Evaluation of ductile tearing resistance of an interstitial free steel sheet using SENT specimens

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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