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Evaluating Fracture Toughness of Ductile Materials: A Critical Indentation Energy Model Based on Continuum Damage Mechanics

[+] Author Affiliations
Jung-Suk Lee, Dongil Kwon

Seoul National University, Seoul, Korea

Eui-Hyun Kim

Korean Electric Power Research Institute, Daejeon, Korea

Paper No. OMAE2005-67271, pp. 113-118; 6 pages
doi:10.1115/OMAE2005-67271
From:
  • ASME 2005 24th International Conference on Offshore Mechanics and Arctic Engineering
  • 24th International Conference on Offshore Mechanics and Arctic Engineering: Volume 3
  • Halkidiki, Greece, June 12–17, 2005
  • Conference Sponsors: Ocean, Offshore and Arctic Engineering Division
  • ISBN: 0-7918-4197-9 | eISBN: 0-7918-3759-9
  • Copyright © 2005 by ASME

abstract

A new model for determining fracture toughness of ductile materials is presented that uses indentation and is based on continuum damage mechanics (CDM) and the concept of critical void volume fraction. Fracture toughness evaluated using the model showed good agreement with standard fracture toughness test results.

Copyright © 2005 by ASME

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