Modeling & Simulation (Page 9)

What impact does the presence of H2 have on a pipe weld, and what kind of damage can result from it? These are important questions that must be answered as development of a broad hydrogen infrastructure is progressing. The EWI structural integrity group has created a new modeling approach to examine the hydrogen diffusion into...

Laser-welded blanks offer many advantages in automotive closures and structures, but base-material necking and cracking can be an issue. To provide better data for FE simulation modeling, EWI has developed a “mini-dogbone” tensile test for LWB formability evaluation. Hyunok Kim, EWI Forming Center Director, describes this work in Evaluating Laser-welded Blank Formability and Predicting Potential...

The increasing use of AHSS and aluminum alloys for lightweighting automotive structure necessitates a highly accurate prediction model for springback. Recently, EWI devised a cyclic tension-compression test method to qualify a new prediction model. This work is described in Cyclic Tension-compression Testing for Kinematic Hardening Material Models written by EWI Applications Engineer Laura Zoller. You...