Load path transmission in joining elements

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Contributors

Abstract

The mechanical properties of joined structures are determined considerably by the chosen joining technology. With the aim of providing a method that enables a faster and more profound decision-making in the spatial distribution of joining points during product development, a new method for the load path analysis of joining points is presented. For an exemplary car body, the load type in the joining elements, i.e. pure tensile, shear and combined tensile-shear loads, is determined using finite element analysis (FEA). Based on the evaluated loads, the resulting load paths in selected joining points are analyzed using a 2D FE-model of a clinching point. State of the art methods for load path analysis are dependent on the selected coordinate system or the existing stress state. Thus, a general statement about the load transmission path is not possible at this time. Here, a novel method for the analysis of load paths is used, which is independent of the alignment of the analyzed geometry. The basic assumption of the new load path analysis method was confirmed by using a simple specimen with a square hole in different orientations. The results presented here show a possibility to display the load transmission path invariantly. In further steps, the method will be extended for 3D analysis and the investigation of more complex assemblies. The primary goal of this methodical approach is an even load distribution over the joining elements and the component. This will provide a basis for future design approaches aimed at reducing the number of joining elements in joined structures.

Details

Original languageEnglish
Title of host publicationSheet Metal 2021
EditorsM. Merklein, H. Hagenah, J. Duflou, L. Fratini, F. Micari, P. Martins, G. Meschut
PublisherTrans Tech Publications Ltd
Pages73-80
Number of pages8
ISBN (print)9783035716931
Publication statusPublished - 2021
Peer-reviewedYes

Conference

Title19th International Conference on Sheet Metal
Abbreviated titleSheMet 2021
Conference number19
Duration29 - 31 March 2021
Website
Locationonline
CityErlangen
CountryGermany

External IDs

ORCID /0000-0003-2439-9805/work/142237337

Keywords

Keywords

  • Finite element method (FEM), Joining, Structural analysis