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Plane stress fields induced by moving heat sources in butt-welding
1977 (English)In: Journal of applied mechanics, ISSN 0021-8936, E-ISSN 1528-9036, Vol. 44, no 2, p. 231-236Article in journal (Refereed) Published
Abstract [en]

Mathematical models of the cooling of large butt-welded plates are investigated. One thermoelastic infinite plate and one thermoelastic semi-infinite plate are considered. On the infinite plate two concentrated heat sources of constant power move with constant velocity along a straight line toward each other. They meet and are then immediately removed from the plate. On the semi-infinite plate one concentrated heat source of constant power moves with constant velocity along a straight line perpendicularly toward the edge and is removed as it reaches the plate edge. The straight plate boundary is thermally adiabatic and mechanically free. It is shown that after removal of the heat source(s) such tensile stresses remain much longer in the semi-infinite plate than in the infinite plate. The transverse tensile stresses may explain the tendency of hot cracking in the end portion of a butt-weld.

Place, publisher, year, edition, pages
1977. Vol. 44, no 2, p. 231-236
National Category
Other Mechanical Engineering
Research subject
Computer Aided Design
Identifiers
URN: urn:nbn:se:ltu:diva-7108Local ID: 56d854a0-09a7-11de-9f31-000ea68e967bOAI: oai:DiVA.org:ltu-7108DiVA, id: diva2:979995
Note
Upprättat; 1977; 20090305 (ysko)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved

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Karlsson, Lennart

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