Fatigue Design of Welded Thin Sheet Structures

Fayard, Jean-Luc; Bignonnet, A.; Van, K. Dang

doi:10.1016/s1566-1369(97)80015-5

Cited by 4 publications

(5 citation statements)

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“…Some simplified FE models for seam weld connections are discussed by Aygül in (Aygül (2012)), albeit in a fatigue analysis context. The joined structures can be connected using oblique shell elements or shell elements of increased thickness vicinity (Niemi (1995); Niemi and Marquis (2003); Eriksson et al (2003)), rigid links (Fayard et al (1997)) or using solid elements.…”

Section: Different Punctual and Continuous Joining Technologiesmentioning

confidence: 99%

Experimental validation of numerical structural dynamic models for metal plate joining techniques

Belle

Brandolisio

Deckers

et al. 2017

Journal of Vibration and Control

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Joined structures are of high industrial relevance. The dynamic effects of joints are however often practically difficult to accurately account for in numerical models, as they often lead to local changes in stiffness and damping. This paper discusses the comparison between measurements and simulations of joined panels considering four different joining techniques: adhesive bonding, metal inert gas welding, resistance spot welding and flow drill screwing. An experimental modal analysis is performed on the different systems and the Power Injection Method is applied to determine the loss factors of single plate systems and their joined counterparts. The joined panels are modeled in a holistic simulation environment with particular focus on the joining region, by application of predefined and generic joint models. A very good agreement is obtained between the simulated dynamic behavior and the experimental results, showing that an accurate representation of the joints has been obtained.

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Section: Different Punctual and Continuous Joining Technologiesmentioning

confidence: 99%

Experimental validation of numerical structural dynamic models for metal plate joining techniques

Belle

Brandolisio

Deckers

et al. 2017

Journal of Vibration and Control

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show abstract

“…In order to be as general as possible, it is necessary to be able to take account of multiaxial service loadings. A new method was thus developed by J. L. Fayard et al ., 4 –6 which has already proved its efficiency on structural applications. As in the previous approach proposed by the Institut de Soudure, this method is based on the use of a local equivalent stress derived from Dang Van’s multiaxial criterion.…”

Section: Local Multiaxial Fatigue Criterion: Application To Welded Stmentioning

confidence: 99%

“…Computational methods to predict fatigue resistance of such structures have been proposed by different researchers; in particular in France J. L. Fayard et al . have developed a new efficient tool for analysing automotive structures obtained by continuous welding 4 –6 …”

Section: Application Of the Multiaxial Fatigue Criterion In The Autommentioning

confidence: 99%

“…The ‘good’ rule is the one that allows the interpretation of all the experimental results with the minimum scatter. On this basis, a design rule for welded components used in the automotive industry was established, see Fayard et al 4 , 5 . These components are generally made by joining metal sheets of approximately 2 mm thickness by automatic Metal Active Gaz (MAG) welding.…”

Section: Application Of the Multiaxial Fatigue Criterion In The Autommentioning

confidence: 99%

“…These components are generally made by joining metal sheets of approximately 2 mm thickness by automatic Metal Active Gaz (MAG) welding. The meshing rules which must reproduce as accurately as possible the local rigidity induced by the weld which modifies the local stress distribution are given in Refs [4,5]. The fatigue tests were performed at different loading conditions on the elementary structures made from low and high strength steel sheets shown in Fig.…”

Section: Application Of the Multiaxial Fatigue Criterion In The Autommentioning

confidence: 99%

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Assessment of welded structures by a local multiaxial fatigue approach

Dang

Bignonnet

Fayard

et al. 2001

Fatigue Fract Eng Mat Struct

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A new local multiaxial computing method for the fatigue assessment of welded structures is presented. This approach is based on the use of an equivalent stress derived from the multiaxial fatigue criterion proposed by Dang Van for plain machined specimens. Application to fillet welds allows a better description of the influence of local geometries and residual stress states. These factors are related to the weld process and the quality of the weld. This approach, associated with definite shell finite element meshing rules in order to take account of the increase of local rigidity introduced by the weld, is also successfully used to assess the fatigue resistance of welded automotive structures.

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