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Numerical modelling can save significant time and cost at the design stage (Finite Element Analysis), as part of process acquisition, and through to assessing in-service performance (including fatigue modelling). TWI uses welding simulations as virtual tools to help understand how different processing conditions can influence the performance of welded fabrications.
TWI’s modelling capability extends from traditional joining processessuch as arc-welding, to additive manufacture and non-destructive test techniques (e.g. guided-waves), in addition to the prediction of microstructures and residual stress and distortion.
TWI’s expertise lies in its breadth of experience in applying and validating welding and joining simulations covering most metal alloys (and non-metallics) and industrial applications. By identifying the most suitable modelling approach, TWI can deliver effective and reliable solutions to meet our customer requirements. Examples of previous work on manufacturing process simulations include:
TWI’s modelling staff are actively engaged in the development of codes, standards and industry best practice for weld modelling. This includes participation on and contribution to the UK Nuclear Standard R6 Weld Modelling Guidelines subgroup; British Standard 7910 subgroup on Welding Residual Stress; NAFEMS Manufacturing Process Simulation Working Group; and the ISO/TS 18166 Numerical Welding Simulation technical document.
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