An Engineering Approach to Consider Stress Concentrations in Fatigue Life Predictions on Automotive Body Structures Stellantis

Format:

Book

Conference/Event

Author/Creator:

Zhang, Weidong, author.

Contributor:

Archak, Vijay

Guo, Mingchao

Pankaj, Ananta

Conference Name:

WCX SAE World Congress Experience (2022-04-05 : Detroit & Online, Michigan, United States)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2022

Summary:

This paper describes a new procedure for more accurate durability predictions of stress along edges of automotive body structures. The current elemental stress based CAE procedures often require iterative mesh refinement to correlate predictions to experimental cracking on the edges of components. The new proposed procedure is based on element nodal stress. It is first studied on a circular hole representing a notch in a rectangular plate with different element sizes and options. Elemental nodal stress demonstrates an improvement over elemental stress methods by correlating with theoretical notch stress result. The proposed procedure is then studied on multiple examples of experimental cracks and successfully predicts issues where the current elemental stress method does not. In addition, it avoids the iterative mesh refinement associated with the current methods. In summary, the new method based on nodal stress is more accurate, more efficient, and improves the first time through capability for stress calculations on the edges of structural components

Notes:

Vendor supplied data

Publisher Number:

2022-01-0261

Access Restriction:

Restricted for use by site license