Effect of Hydrostatic Pressure on Fracture Toughness : 2nd Report, Elastic-plastic Fracture Toughness

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概要

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• To investigate the effect of hydrostatic pressure on the fracture toughness of boron steel and aluminum alloy, a compact tension test based on ASTM Standard is carried out under pressure up to 400 MPa. The displacement at the crack initiation is detected by an electric potential difference method under pressure. The elastic-plastic fracture toughness J_<IC> increases with an increasing increasing pressure. The phenomenon of the increase of fracture toughness due to pressure is confirmed by measuring a critical stretch zone width of boron steel. The experimental J_<IC> values are compared with the J-integral values analyzed by FEM.

• 一般社団法人日本機械学会の論文

著者

• Fujimoto Katsumi

  Faculty Of Technology Tokyo Metropolitan University

• Miyagawa Matsuo

  The Technological University Of Nagaoka

• SHINOHARA Munenori

  Faculty of Technology, Tokyo Metropolitan University

• Shinohara Munenori

  Faculty Of Technology Tokyo Metropolitan University

関連論文

• Effect of Hydrostatic Pressure on Fracture Toughness : 2nd Report, Elastic-plastic Fracture Toughness

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