ENERGETIC APPROACH FOR MODELLING HEAT SOURCES IN WELDING PROCESSES.

G. Navarro, C. E. Majorana, B. A. Schrefler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

This paper deals with the simulation of the heat input of a welding source. The heat source is modelled by spatial Gaussian functions which are introduced into a fully nonlinear heat transfer analyser for the investigation of the transient temperature fields in welded connections. The energy supplied by the welding arc together with the absorbed energy and the concentration of the heat source are relevant parameters to reproduce numerically the shape of the molten zone and the dimensions of the welding pool. If these dimensions are known from an experiment, the procedure presented permits to model correctly the heat input and hence the whole phenomenon. A practical example is shown which demonstrates the capability of the method.

Original languageEnglish
Title of host publicationAmerican Society of Mechanical Engineers, Advanced Energy Systems Division (Publication) AES
EditorsM.J. Moran, S.S. Stecco, G.M. Reistad
Place of PublicationNew York, NY, USA
PublisherASME
Pages67-73
Number of pages7
Volume3
Edition2
StatePublished - Dec 1 1987

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Mechanical Engineering

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