Femap with NX Nastran supports assembly modeling, including automatic contact detection that determines the components initially in contact. The contact regions can be set to be simply in contact (with or without friction) or glued together. The contact calculations performed by NX Nastran are iterative and update during the solution, to take into account deformation changes representing the true contact condition in the final results.
Other types of component assembly modeling techniques also supported include spot-weld, fastener elements, and bolted joints with optional pre-loading.
Besides solid and shell element models Femap also supports beam modeling and meshing. This technique allows models comprising long, slender components (for which a solid meshing approach would create a large, unwieldy model) to be represented by one-dimensional elements with associated properties.
Model visualization is key to beam modeling, and with Femap you can view these elements as solid components and include offsets. Femap features a section property editor which includes a library of standard cross-section shapes. You can also define your own sections, and the built-in section property calculator automatically determines the required properties.
Also available are full beam visualization and results display options including shear and bending moment diagrams.
The use of composite materials in designs has increased significantly in recent years, and Femap can help you model and postprocess results on composite structures. With Femap’s a laminate editor and viewer, you can update the laminate properties interactively as you create and modify plies in the laminate.
You can also postprocess composite laminate results using Femap’s global composite ply feature, which allows you to view results on continuous plies through the structural model.
Femap is solver-neutral and provides in-depth pre- and postprocessing support for all of the main commercial solvers on the market, including NX Nastran, Ansys, LS-DYNA, Abaqus and TMG. You can take full advantage of the advanced analysis capabilities of these solvers using Femap’s comprehensive modeling and analysis support, particularly for dynamic, geometric and material nonlinear, heat transfer and fluid flow analyses.