FEM approach for exterior moldings insertion/retention using LS-Dyna General Motors South America

Format:

Book

Conference/Event

Author/Creator:

Serrano, Vinicius Leitão, author.

Conference Name:

SAE Brasil 2023 Congress (2023-10-10 : Sao Paolo, Brazil)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2024

Summary:

The scope of the study was to understand the mechanical behavior of a retainer design - used to attach an exterior part on the body structure - during insertion and retention events and it was performed with the extensive use of finite elements tools, more specifically, LS-Dyna, a powerful FE tool able to run both explicit and implicit structural analyses commonly used in automotive developments to simulate dynamic events, such as high speed impacts. Several FE models were used to define best methodology in terms of modeling technic and contact representation. Additionally, based on physical tests, it was able to achieve a good virtual representation of the retainer forces and visualize each step of these events. These data were used to identify what dimensional parameters of the retainer were more important to "tune" the part performance. As conclusion, a new design was proposed able to reduce the insertion force about 43% with no decrease in the retention force

Notes:

Vendor supplied data

Publisher Number:

2023-36-0077

Access Restriction:

Restricted for use by site license