Advances in strength of materials : selected peer reviewed by Liviu Marsavina

By Liviu Marsavina

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Extra info for Advances in strength of materials : selected peer reviewed papers from the Strength of Materials Laboratory at 85 years, 21-22 November 2008, Timisoara, Romania

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So, it could happen that welded joint is accepted for service with cracks present, although they are not allowed (ISO 5817). With this in mind, it is necessary first to define what is the crack in a structure. Planar discontinuity in material can be considered as a crack. The crack is presented by two surfaces in close contact, but without cohesion, e. g. without atomic forces between the surface atoms. Crack is defined in standards, main classification being to free (through), surface and embedded cracks (Fig.

Bridge management systems are still driven by individually collected data, so decisions cannot be better than the inserted data, based almost entirely upon a visual bridge inspection. Damages not found in visible inspection are neither detected nor evaluated, so the bridge state assessment is better than real situation. One of the main trends in NDT, and in ultrasonic testing (UT) in particular, is full automation of testing procedure [7]. Systems already implemented enabled a tremendous benefit to decision-makers.

Burzić, S. Sedmak, A. Sedmak, V. Grabulov: Characterisation of different crack parameters in high strength steel welded joint, IIW International Congress on Welding and Allied Processes - Cairo 2004, Cairo, (2004) [19] S. Sedmak, K. Gerić, V. Grabulov, Z. Burzić, A. Sedmak: Static and dynamic fracture mechanics parameters of material in the heat-affected-zone, ICF 11, Turin, (2005) [20] I. Svetel: IVK, Vol. 7, No 3 (2007), p. 167 [21] M. Kirić, B. Grujić: IVK, Vol. 7, No 3 (2007), p. 177 Key Engineering Materials Vol.

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