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Workshop on Multi-Terrain Impact Simulations |
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Dates: November 28-29, 2006
Location: NIA, 100 Exploration Way, Hampton, Virginia
Description: The focus of this workshop is to provide an interchange of ideas by bringing in experts who have experience and knowledge in modeling complex materials such as soils and fluids, and to assess the current capabilities of nonlinear dynamic finite element analyses for simulating multi-terrain impacts for both spacecraft and aircraft. Researchers who specialize in impact dynamics at other NASA centers and in industry and academia will be invited to attend. Dr. Len Schwer, a soil and concrete expert, and Professor Ala Tabiei, who provides classes and consultation in using LS-DYNA, have both agreed to attend and to present material. Researchers from NASA, government, and industry will interact with the invited experts and provide examples of simulations that could be improved by better material models, or better modeling techniques. With the award of the CEV (Orion) Apollo-like capsule to Lockheed Martin, Lockheed Martin analysts are invited to join and to present some of their analysis of the Orion capsule landing. The LandIR facility at Langley is being used to simulate Orion landing impacts onto soil through the Advanced Development Program. Specific problems will be addressed. For example, hard soil impacts often exhibit much rebound velocity than observed in experiments. Rebound occurs because of the difficulty in defining the proper soil unloading curve. The modeling experts will also be asked to assess state-of-the-art techniques for modeling soils and compare results obtained from different formulations including the Lagrangian, Eulerian, and meshless methods.
Agenda: Preliminary Agenda
Hotel Accommodations: Click here for a listing of recommended hotels.
Airport Information: There are two nearby airports to NIA.
Points of Contact:
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