Estimation of elastic plastic behavior fracture toughness under hydrogen condition of Inconel 617 from small punch test

Nak Hyun Kim; Yun Jae Kim; Kee Bong Yoon; Young Hwa Ma

doi:10.3795/KSME-A.2013.37.6.753

Estimation of elastic plastic behavior fracture toughness under hydrogen condition of Inconel 617 from small punch test

Nak Hyun Kim, Yun Jae Kim, Kee Bong Yoon, Young Hwa Ma

School of Mechanical Engineering

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

1 Citation (Scopus)

Abstract

The hydrogen embrittlement of metallic materials is an important issue from the viewpoint of structural integrity. In this regard, the estimation of mechanical properties and fracture toughness under hydrogen conditions provides very important data. This study provides an experimental validation of the approach for simulating the small punch of Inconel 617 using finite element damage analysis, as recently proposed by the authors, and applies an inverse method for the determination of the constitutive tensile behavior of materials. The mechanical properties obtained from the inverse method are compared with those obtained from the tensile test and validated. The mechanical properties and fracture toughness are predicted by using the inverse method and finite element damage analysis.

Original language	English
Pages (from-to)	753-760
Number of pages	8
Journal	Transactions of the Korean Society of Mechanical Engineers, A
Volume	37
Issue number	6
DOIs	https://doi.org/10.3795/KSME-A.2013.37.6.753
Publication status	Published - 2013 Jun

Keywords

Ductile fracture simulation
Experimental validation
Finite element analysis
Hydrogen embrittlement
Small punch

ASJC Scopus subject areas

Mechanical Engineering

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abstract = "The hydrogen embrittlement of metallic materials is an important issue from the viewpoint of structural integrity. In this regard, the estimation of mechanical properties and fracture toughness under hydrogen conditions provides very important data. This study provides an experimental validation of the approach for simulating the small punch of Inconel 617 using finite element damage analysis, as recently proposed by the authors, and applies an inverse method for the determination of the constitutive tensile behavior of materials. The mechanical properties obtained from the inverse method are compared with those obtained from the tensile test and validated. The mechanical properties and fracture toughness are predicted by using the inverse method and finite element damage analysis.",

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AU - Yoon, Kee Bong

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AB - The hydrogen embrittlement of metallic materials is an important issue from the viewpoint of structural integrity. In this regard, the estimation of mechanical properties and fracture toughness under hydrogen conditions provides very important data. This study provides an experimental validation of the approach for simulating the small punch of Inconel 617 using finite element damage analysis, as recently proposed by the authors, and applies an inverse method for the determination of the constitutive tensile behavior of materials. The mechanical properties obtained from the inverse method are compared with those obtained from the tensile test and validated. The mechanical properties and fracture toughness are predicted by using the inverse method and finite element damage analysis.

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KW - Hydrogen embrittlement

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