Shell-to-solid submodeling and shell-to-solid coupling of a pipe joint

Submodeling is the technique used in ABAQUS for analyzing a local part of a model with a refined mesh, based on interpolation of the solution from an initial global model (usually with a coarser mesh) onto the nodes on the appropriate parts of the boundary of the submodel. Shell-to-solid submodeling models a region with solid elements, when the global model is made up of shell elements. Shell-to-solid coupling is a feature in ABAQUS by which three-dimensional shell meshes can be coupled automatically to three-dimensional solid meshes. The analysis is tested as a static process in ABAQUS/Standard

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MEMS Labs

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

Focused Engineering Solutions by AEG

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

Self-contact in rubber/foam components: jounce bumper

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

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