Energy-based numerical modeling of the strain rate effect on fracture toughness of SA508 Gr. 1a

Hyun Suk Nam, Yun Jae Kim, Jin Weon Kim, Jong Sung Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

This article presents an energy-based method to simulate ductile tearing under dynamic loading conditions. The strain rate-dependent material properties are characterized by the Johnson-Cook-type model. The damage model is defined based on the multi-axial fracture strain energy concept. The proposed damage model is applied to simulate the fracture toughness test of SA508 Gr. 1a under four different test speeds. Simulated results show a good overall agreement with the experimental results.

Original languageEnglish
Pages (from-to)177-189
Number of pages13
JournalJournal of Strain Analysis for Engineering Design
Volume52
Issue number3
DOIs
Publication statusPublished - 2017 Apr 1
Externally publishedYes

Fingerprint

Fracture Toughness
Strain Rate
Numerical Modeling
Fracture toughness
Strain rate
Damage
Energy
Strain Energy
Strain energy
Material Properties
Materials properties
Model
Dependent
Experimental Results

Keywords

  • Ductile fracture
  • finite element damage analysis
  • high strain rate condition
  • multi-axial fracture strain energy locus
  • strain rate effect

ASJC Scopus subject areas

  • Modelling and Simulation
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

Cite this

Energy-based numerical modeling of the strain rate effect on fracture toughness of SA508 Gr. 1a. / Nam, Hyun Suk; Kim, Yun Jae; Kim, Jin Weon; Kim, Jong Sung.

In: Journal of Strain Analysis for Engineering Design, Vol. 52, No. 3, 01.04.2017, p. 177-189.

Research output: Contribution to journalArticle

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