J Integral Evaluation of Side-Grooved CCT Specimens by Three-Dimensional Analyses

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概要

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• The 25% side-grooved CCT(center-cracked tension) specimens were analyzed elastic-plastically using the three-dimensional finite element method. The models used in analyses were CCT specimens which were of two thicknesses (B_0=18.4 mm) and 50 mm in width. The material was the general rolled steel (for structure). In the case of an 18mm-thick CCT specimen employing √<B_0・B_N> as the effective thickness, the load-vs-displacement curve of the specimen with side-grooves is higher by about 6% than that of a specimen without side-grooves. In the case of a 4mm-thick specimen, the former is higher by about 11% than the latter. The effect of the side-groove is greater on a 4mm-thick specimen than on an 18mm-thick specimen. The J value estimated by Rice's conventional equation using √<B_0・B_N> as the effective thickness nearly coincides with the J value at the central part of the specimen within about 6% error. it is possible to obtain a valid J_<IC> using the 25% side-grooved 4mm-thick specimen.

• 一般社団法人日本機械学会の論文
• 1989-07-15

著者

• Miyamoto Hiroshi

  Faculty of Domestic Science, Tokushima Bunri University

• Kikuchi Masanori

  Faculty Of Science And Technology Science University Of Tokyo

• Machida Kenji

  Faculty Of Science And Technology Science University Of Tokyo

• Machida Kenji

  Faculty Of Engineering Hiroshima University

• Miyamoto H

  Science Univ. Tokyo Chiba Jpn

• Miyamoto Hiroshi

  Faculty Of Biology-oriented Science And Technology Department Of Molecular Genetics Kinki University

• Kikuchi Masanori

  Faculty Of Science & Technology Science University Of Tokyo

• Kikuchi Masanori

  Faculty of Dairy Science, Rakunou University

• MACHIDA Kenji

  Faculty of Science and Technology, Science University of Tokyo

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