Evaluation of fracture toughness of ductile thin metal sheet

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概要

• 論文の詳細を見る

• To characterize the stable crack extension, it is commonly used a J-integral R-curve instead of a linear elastic R-curve. This paper presents the formula obtained by modifying Liebowitz's, so that this formula may be applied to the investigation of crack extension force using a J-integral R-curve for the ductile metal sheets. The effects of specimen geometry, size and initial crack length on J_R_0 at the onset of stable crack extension are discussed by using this method for the stainless steel sheets, SUS 430, with a thickness of 1.2mm. The stable crack extension phenomena of the same specimens are analyzed by considering the tearing modulus obtained by this method.

• 山口大学の論文

著者

• Ishii Mitsuo

  Hikari Works Nippon Steel C.

• Shimizu Shigetoshi

  Department Of Mechanical Engineering Yamaguchi University

• Shimizu Shigetoshi

  Department Of Mechanical Engineering Faculty Of Engineering Yamaguchi University

• KAWANO Shun-ichi

  Department of Mechanical Engineering

• Kawano Shun-ichi

  Department Of Mechanical Engineering Yamaguchi University

関連論文

• Fatigue Strength in Long Life Range and Non-propagating Fatigue Crack in SUS 304 Type Stainless Steel
• Size Effect on Rotating Bending Fatigue in Steels
• Finite element program EPITOK-II
• Thickness Effect on Brittle Fracture Toughness of Weld Metal of High Tensile Strength Steel
• An Experimental Study on Strain Distributions in the Neartip Field under the General Yielding and Crack Growth
• Evaluation of fracture toughness of ductile thin metal sheet

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