Oliver Marshall / Simuserv
Addressing Challenges for Additive Manufacturing Technology through Finite Element Method.
The heat flux required in popular additive manufacturing methods such as selective laser melting and other powder bed fusion methods result in both residual stresses and distortions in the manufactured part. Predicting in-service loading performance of parts is further complicated by the complex evolution of the material properties during AM which is dictated by the microstructure of the material. The ability to accurately simulate and predict defects, distortion and residual stresses that arise from AM is crucial for developing a robust and reliable AM procedure. In this presentation a complete workflow will be presented which captures the machine parameters as usable inputs for simulation of the additive manufacturing process using the finite element method. Reverse optimisation can then use the quantitative outputs of an AM simulation to redefine the print geometry, minimizing the gap between as-designed and as-built.
Oliver Marshall is a Mechanical Engineer specialising in realistic simulation. Oliver was quick to recognize the potential and value of computer-aided engineering analysis which he utilizes to produce innovative and productive solutions for complex problems. At Simuserv, Oliver works to provide support, training and consulting for existing and emerging SIMULIA product users. Oliver previously studied Mechanical Engineering at the University of Canterbury before relocating to Auckland to begin his career in the wide-reaching environment of engineering simulation.