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Analytical modelling of tube hydroforming
Volvo Car Components Corporation/Industrial Development Centre, Olofström, Sweden.ORCID iD: 0000-0001-8542-9006
1999 (English)In: Thin-walled structures, ISSN 0263-8231, E-ISSN 1879-3223, Vol. 34, no 4, 295-330 p.Article in journal (Refereed) Published
Abstract [en]

The automotive industry has shown a growing interest in tube hydroforming during the past years. The advantages of hydroforming (less thinning, a more efficient manufacturing process etc.) can, for instance, be combined with the high strength of extra high strength steels, which are usually less formable, to produce structural automotive components which exhibit lower weight and improved service performance. Design and production of tubular components require knowledge about tube material behaviour and tribological effects during hydroforming and how the hydroforming operation itself should be controlled. These issues are studied analytically in the present paper. Hydroforming consists of free forming and calibration. Only the so-called free forming is treated here. The analytical models constructed in this paper are used to show what the limits are during the free forming, how different material and process parameters influence the loading path and the forming result, and what an experimental investigation into hydroforming should focus on. The present study was a part of a larger investigation, in which finite-element simulations and experiments were also conducted. The results of these simulations and experiments will be accounted for in coming papers.

Place, publisher, year, edition, pages
Elsevier, 1999. Vol. 34, no 4, 295-330 p.
Keyword [en]
fracture; hydroforming; modelling; tube; yielding
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:oru:diva-55303DOI: 10.1016/S0263-8231(99)00018-XISI: 000082020400003Scopus ID: 2-s2.0-0033363589OAI: oai:DiVA.org:oru-55303DiVA: diva2:1071247
Available from: 2017-02-03 Created: 2017-02-03 Last updated: 2017-10-18Bibliographically approved

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