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http://dx.doi.org/10.3795/KSME-A.2013.37.4.491

Finite Element Simulation of Fracture Toughness Test  

Chu, Seok Jae (School of Mechanical Engineering, Univ. of Ulsan)
Liu, Conghao (School of Mechanical Engineering, Univ. of Ulsan)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.37, no.4, 2013 , pp. 491-496 More about this Journal
Abstract
Finite element simulations of tensile tests were performed to determine the equivalent stress - equivalent plastic strain curves, critical equivalent stresses, and critical equivalent plastic strains. Then, the curves were used as inputs to finite element simulations of fracture toughness tests to determine the plane strain fracture toughness. The critical COD was taken as the COD when the equivalent plastic strain at the crack tip reached a critical value, and it was used as a crack growth criterion. The relationship between the critical COD and the critical equivalent plastic strain or the reduction of area was found. The relationship between the plane strain fracture toughness and the product of the critical equivalent stress and the critical equivalent plastic strain was also found.
Keywords
Plane Strain Fracture Toughness; Finite Element Simulation; Equivalent Stress; Equivalent Plastic Strain;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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