Fatigue Life Analysis of Volvo S80 Bi-Fuel using MSC/Fatigue, Worldwide MSC Automotive Conference

Abstract

ABSTRACT The dimensioning of Volvo S80 Bi-Fuel has been totally performed in a virtual environment. Several design solutions have been numerically investigated using two dominant load cases. The robustness of chosen solutions have been investigated by calculations with critical spotwelds removed from the FE-model. The final design has been verified with a full four poster shake rig test. Although the rear floor is totally redesigned for the gas tank installation, no fatigue failure has been observed in this area. The paper gives some insight into the dimensioning process, with special focus on spotweld fatigue analysis. All fatigue calculations were performed using MSC/Fatigue