Design rules for autofrettage of an aluminium valve body

Sellen, Stephan; Maas, Stefan; Andreas, Thomas; Plapper, Peter; Zürbes, Arno; Becker, Daniel

doi:10.1111/ffe.12328

Reference : Design rules for autofrettage of an aluminium valve body


	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Mechanical engineering
	To cite this reference:	http://hdl.handle.net/10993/22369

Title :	Design rules for autofrettage of an aluminium valve body
Language :	English
Author, co-author :	Sellen, Stephan [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Maas, Stefan [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Andreas, Thomas []
	Plapper, Peter [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Zürbes, Arno []
	Becker, Daniel []
Publication date :	3-Jul-2015
Journal title :	Fatigue & Fracture of Engineering Materials & Structures
Publisher :	Blackwell Publishing
Peer reviewed :	Yes (verified by ORBi^lu)
Audience :	International
ISSN :	8756-758X
e-ISSN :	1460-2695
Keywords :	[en] fracture ; aluminum ; autofrettage
Abstract :	[en] The following paper is intended to improve the fatigue behaviour of a complex aluminium valve geometry under high internal cyclic pres sure loading. The autofrettage process helps to increase the f atigue durability and a simple, but efﬁcient design method for this proces s is deployed. Based o n non-linear material’s behaviour, ﬁn ite eleme nt simulations of t he crack-free geometry help to determine the minimum and maximum autofrettage pressure to be used, without iterative crack simulations , which would require higher computational effort. Material tests under inverse plastiﬁcations were performed in order to determine the correct material model. The derived design method was validated with simpliﬁed specimens subjected to different autofrettage pressure levels and su bsequent cyclic fatigue tests.
Research centres :	University of Luxembourg: Research Unit of Enegineering Sciences
Funders :	Rotarex Luxembourg, Ministry of Economy Luxembourg, University of Luxembourg
Name of the research project :	F1R-ING-PAU-11EAVF > Ermüdungsrelevante Auslegung und Verifikation der mechanisch > 04/04/2011 - 03/04/2014 > MAAS Stefan
Target :	Researchers ; Professionals
Permalink :	http://hdl.handle.net/10993/22369
DOI :	10.1111/ffe.12328
Other URL :	http://onlinelibrary.wiley.com/doi/10.1111/ffe.12328/abstract

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