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Plastic mechanisms during fast brittle fracture
Luleå tekniska universitet, Hållfasthetslära, Ltu.
Luleå tekniska universitet.
1995 (English)In: Current topics in computational mechanics: presented at the 1995 Joint ASME/JSME Pressure Vessels and Piping Conference, Honolulu, Hawaii, July 23 - 27, 1995 / [ed] James F. Cory, New York: American Society of Mechanical Engineers , 1995, 69-72 p.Conference paper (Refereed)
Abstract [en]

Careful studies of cleavage fracture surfaces show that parts of the surface consist of plastically formed ridges, presumably traces of plastically collapsed ligaments. These ligaments are assumed to be formed between the cleavage fractured areas. The collapse process of these ligaments is numerically examined. A finite element method and an asymptotic analysis are employed. The results shows that relatively large amounts of energy are consumed in this process and that the energy consumption is increasing rapidly with increasing crack tip speed. The implications for slow stable crack tip speeds at dynamic fracture are discussed.

Place, publisher, year, edition, pages
New York: American Society of Mechanical Engineers , 1995. 69-72 p.
Series
, PVP, 305
Research subject
Solid Mechanics
Identifiers
URN: urn:nbn:se:ltu:diva-37807Local ID: beffae70-fbfc-11dc-a946-000ea68e967bISBN: 0-7918-1336-3OAI: oai:DiVA.org:ltu-37807DiVA: diva2:1011305
Conference
Joint ASME/JSME Pressure Vessels and Piping Conference : 23/07/1995 - 27/07/1995
Note
Godkänd; 1995; 20080327 (cira)Available from: 2016-10-03 Created: 2016-10-03Bibliographically approved

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