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Analysis of strains in cast iron joints using finite element simulations and digital image correlation techniques

T. Sjögren ; Andreas Autio (Institutionen för tillämpad mekanik, Dynamik) ; Kristoffer Odnegård (Institutionen för tillämpad mekanik, Dynamik) ; H. Andersson
70th World Foundry Congress 2012, WFC 2012; Monterrey; Mexico; 25 April 2012 through 27 April 2012 p. 396-401. (2012)
[Konferensbidrag, refereegranskat]

The Metalock method is a mechanical joining technique most commonly employed in cracked castings of iron, aluminum and steel. The marine diesel engine designer MAN Diesel & Turbo uses the Metalock method for crack patching in large cast iron components. The service life of these components can thereby be extended, reducing both replacement costs and environmental impact. The purpose of this study is to investigate the mechanical behavior of the Metalock method. This was studied by full scale testing, using a non-contact deformation measurement technique known as digital image correlation (DIC), of cast iron specimens joined together by the Metalock method. Furthermore, finite element (FE) simulations were performed, and verified by experimental results, in order to study the mechanical behavior in detail and to carry out a parametric study on some of the components included in the joint. Experimental tests show that using the DIC technique gives a good possibility to verify the strain-field achieved by FE simulations and improving the understanding of the Metalock joining technique.

Nyckelord: Cast iron, Digital image correlation, Finite element analysis, Mechanical joining, Metalock, Strain field

Denna post skapades 2015-05-05.
CPL Pubid: 216462


Institutioner (Chalmers)

Institutionen för tillämpad mekanik, Dynamik (1900-2017)


Teknisk mekanik

Chalmers infrastruktur