Simulation of Powder Bed Fusion

Sensitivity Analysis of the Inherent Strain Approach for the Buckling of a Thin Structure

Thursday, 20 November 2025 | Online

15:00 (London) | 16:00 (Berlin)
07:00 (Los Angeles) | 10:00 (New York)

About the Webinar

An important part of standardisation procedures is to make available representative benchmark examples to the modelling and simulation community.

NAFEMS Manufacturing Process Simulation Working Group published a technical article in NAFEMS Benchmark Magazine of October 2024 describing a benchmark example that compared experimental measurements and numerical simulations of a powder bed fusion (PBF) thin structure.

Following that publication, TWI have carried out a detailed sensitivity analysis for a number of numerical parameters and options, for the same PBF component, that influence the modelling results and fidelity, using the inherent strain approach. The sensitivity analysis will help the modelling and simulation community to achieve a good balance between speed and accuracy by making suitable selections of numerical parameters and options including mesh refinement, type of element, boundary conditions as well as material and geometry assumptions. The results of the sensitivity analysis are conveniently shown in a comparison table and as a set of colourful contour plots.

A​bout our speakers

O​liver Found, Simulation and Modelling Engineer at TWI

• Oliver Found graduated with a PhD from the University of Sheffield in May 2024.
• His PhD topic was researching magnetic architectures in electric motors for use in the automotive industry.
• He joined as a modelling and simulation engineer at TWI in October 2023.
• His work at TWI has included structural, thermo-mechanical, electromagnetic, CFD and machine learning modelling.

D​r Anas Yaghi, Principal Modelling & Simulation Engineer at TWI

• Anas Yaghi obtained his BEng and then his PhD in mechanical engineering from the University of Nottingham in 1993.
• He worked as a senior research fellow in the Mechanical Engineering Department at the same university until 2012.
• Following that, he worked at the Manufacturing Technology Centre in Coventry as a senior research engineer for eight years.
• He has worked as a principal modelling and simulation engineer at TWI (UK) since July 2023.
• Anas’ main technical specialities are stress analysis, structural integrity assessment, and numerical modelling and simulation, particularly of high-value thermo-mechanical manufacturing processes, such as welding and additive manufacturing.
• He has been the vice-chair of NAFEMS Manufacturing Process Simulation Working Group since 2016.
• Over the years, Anas has published more than 50 technical papers in international conferences and peer-reviewed journals.