Crack tip opening angle (CTOA) and δ5 measurements on SENT and DENT specimens of a thin interstitial-free steel sheet

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

doi:10.1016/j.engfracmech.2019.106861

Crack tip opening angle (CTOA) and δ₅ measurements on SENT and DENT specimens of a thin interstitial-free steel sheet

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

8 Citations (Scopus)

Abstract

The present study addresses characterizing ductile tearing resistance of a 1 mm thick sheet of an interstitial free steel sheet using crack tip opening angle (φ), and δ5 concepts. The transferability of the φ- crack growth (Δa) data between two geometry, namely single edge notch tensile (SENT) and double edge notch tensile (DENT), was verified. For a specified thickness the δ5-Δa data can also be used as a material parameter. Cohesive zone modeling (CZM) successfully reproduced the experimentally determined φ-Δa and δ5-Δa plots for pre-cracked specimens, and confirmed transferability of the CZM parameters between the two geometries.

Original language	English
Article number	106861
Journal	Engineering Fracture Mechanics
Volume	225
Early online date	26 Dec 2019
DOIs	https://doi.org/10.1016/j.engfracmech.2019.106861
Publication status	Published - 15 Feb 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019

Funder

Funding Information:
Authors acknowledge that all the mechanical tests in this research has been done in the DST-FIST, India 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.

Keywords

Cohesive zone modeling (CZM)
Crack tip opening angle (CTOA)
DENT specimen
Interstitial-free (IF) steel
SENT specimen

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.engfracmech.2019.106861

Cite this

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title = "Crack tip opening angle (CTOA) and δ5 measurements on SENT and DENT specimens of a thin interstitial-free steel sheet",

abstract = "The present study addresses characterizing ductile tearing resistance of a 1 mm thick sheet of an interstitial free steel sheet using crack tip opening angle (φ), and δ5 concepts. The transferability of the φ- crack growth (Δa) data between two geometry, namely single edge notch tensile (SENT) and double edge notch tensile (DENT), was verified. For a specified thickness the δ5-Δa data can also be used as a material parameter. Cohesive zone modeling (CZM) successfully reproduced the experimentally determined φ-Δa and δ5-Δa plots for pre-cracked specimens, and confirmed transferability of the CZM parameters between the two geometries.",

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AU - Chandra, S. K.

AU - Sarkar, R.

AU - Bhowmick, A. D.

AU - De, P. S.

AU - Chakraborti, P. C.

AU - Ray, S. K.

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AB - The present study addresses characterizing ductile tearing resistance of a 1 mm thick sheet of an interstitial free steel sheet using crack tip opening angle (φ), and δ5 concepts. The transferability of the φ- crack growth (Δa) data between two geometry, namely single edge notch tensile (SENT) and double edge notch tensile (DENT), was verified. For a specified thickness the δ5-Δa data can also be used as a material parameter. Cohesive zone modeling (CZM) successfully reproduced the experimentally determined φ-Δa and δ5-Δa plots for pre-cracked specimens, and confirmed transferability of the CZM parameters between the two geometries.

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