Modeling & Simulation

Manufacturing engineers need tools that can help them understand microstructural changes during processes like welding, additive manufacturing, and heat treatment. Some available techniques (analytical, empirical, FEA) have been discussed in EWI’s recent ICME series* of papers. An additional approach uses phenomenological modeling to provide information important to predicting metallurgical behavior. EWI associates Rafael Giorjão and...

The integrity of joints (“stack-ups”) in vehicle frames is of utmost importance when it comes to safety, dependability, and public confidence in the automotive industry. But with up to a hundred joint variations in a car’s body-in-white, it is difficult to predict joint strength properties without extensive testing. Until now. EWI has developed a rapid...

Weld thermal history, which greatly affects material microstructure especially in the heat affected zone (HAZ), can be difficult to predict accurately. As part of its ICME approach to predicting microstructural behavior in welding steels, EWI employs welding thermal cycle data -- welding parameters, materials chemical composition, joint design, and materials thickness as baseline inputs --...