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Experimental confirmation of the J integral as a thin section fracture criterion

✍ Scribed by James P. Hickerson Jr.

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 810 KB
Volume: 9
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(77)90053-4

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✦ Synopsis

Recent experimentaf resuits have indicated that the f integral may serve as a vaiid parameter for predicting elastic-plastic plane strain fracture. Similar confirmation for thin section or predominantly plane stress fracture does not exist. The purpose of this investigation was to examine experimentally the validity of a .I integral fracture criterion by performing tests on thin section metals. Seven alloys and three specimen connations were tested under conditions that caused elastic-plastic fracture. Results indicated that a critical value of J existed for each aIIoy that eoutd be used as a fracture criterion.

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The J-integral as a fracture criterion for fiber reinforced concrete

✍ Sidney Mindess; Frederick V. Lawrence; Clyde E. Kesler 📂 Article 📅 1977 🏛 Elsevier Science 🌐 English ⚖ 612 KB

The J-integral, a one-parameter average measure of the elastic-plastic field near a crack tip, was investigated as a fracture criterion for fiber-reinforced concrete. Cement paste, plain concrete and eight different steel and glass fiber concretes in the form of notched beams were tested in bending,