Skip to main content

Submodeling of a stacked sheet metal assembly

Image
By


Sheet metal stampings stacked and fitted on top of each other and secured together via mechanical fasteners such as bolts or rivets are commonly used in the automotive industry. Examples include seat belt anchors and seating track assemblies. The submodeling capability in ABAQUS facilitates economical, yet detailed, prediction of the ultimate strength and integrity of such jointed assemblies. A global model analysis of an assembly is first performed to capture the overall deformation of the system. Subsequently, the displacement results of this global analysis are used to drive the boundaries of a submodeled region of critical concern. The submodeling methodology provides accurate modeling that is more economical than using a globally refined mesh in a single analysis
Labels:

Comments

Post a Comment

Popular posts from this blog

MEMS Labs

By
MEMS National Labs Compiled by AEG http://www.mems.sandia.gov/ http://mems.nist.gov/ http://www.darpa.mil/mto/programs/mems/index.html http://nepp.nasa.gov/index_nasa.cfm/789/ MEMS University Labs This is a comprehensive link to the University Labs working on MEMS area. The name of the Director of the Lab is provided for convenience. http://www.ece.cmu.edu/~mems/ Carnegie Mellon University – Dr Gary Fedder http://www.ece.umn.edu/groups/mems/ University of Minnesota http://www.biomems.uc.edu/ University of Cincinnati – Dr. Chong Ahn http://www.ece.uc.edu/devices/ University of Cincinnati – Dr. Jason Heikenfeld http://www.biomicro.uc.edu/ University of Cincinnati – Dr. Ian Papautsky http://mems.colorado.edu/ University of Colorado at Boulder – Dr. Victor Bright http://www.ece.neu.edu/groups/mfl/ Northeastern University http://www.enme.umd.edu/mml/ University of Maryland – Dr. Don DeVoe http://www.depts.ttu.edu/ntc/Re
2 comments
Read more

Focused Engineering Solutions by AEG

By
Focused Engineering Solutions for the Manufacturing Supply Chain by American Engineering Group Computer-Aided Design, Engineering and Manufacturing (CAD/CAE/CAM) are tools that help reduce costs and shorten the design, prototype and production cycle. These computer-aided tools can also help to incorporate Six Sigma, Lean manufacturing and Just-In-Time (JIT) in the supplier processes bringing credibility to new design concepts. American Engineering Group (AEG) is utilizing these tools to provide a Multisourcing Manufacturing Solution (MMS) by bringing new automotive components to the marketplace in the shortest possible time, with the lowest cost, and highest quality. CAD/CAE/CAM are becoming more popular as a standard analysis tools in the automotive industry for design, failure and manufacturing process analyses. Another notable reason for this popularity is the recent changes in automotive specification requirement for parts comprised of new materials or designs. The automotive ind
Post a Comment
Read more

Self-contact in rubber/foam components: jounce bumper

By
Components that deform and change their shape substantially can fold and have different parts of the surface come into contact with each other. In such cases it can be difficult to predict at the outset of the analysis where such contact may occur and, therefore, it can be difficult to define two independent surfaces to make up a contact pair. A jounce bumper, sometimes referred to as a “helper spring,” is a highly compressible component that is used as part of the shock isolation system in a vehicle. It is typically located above the coil spring that connects the wheels to the frame. Microcellular material is used because of its high compressibility and low Poisson's ratio value at all but fully compressed configurations. The bumper initially sits against a fixed flat rigid surface on one end; on the other end, another flat rigid surface is used to model the compression of the bumper. The geometry of the bumper is such that it folds in three different locations. Separate surfaces
Post a Comment
Read more