Sandia National Laboratories performed vibration and shock testing on a Savannah River Hydride Transport Vessel (HTV) which is used for bulk shipments of tritium. This testing is required to qualify the HTV for transport in the H16 16 shipping container. The main requirement for shipment in the H16 16 is that the contents (in this case the HTV) have a tritium leak rate of less than 1~1 O-~ cc/sec after being subjected to shock and vibration normally incident to transport. Helium leak tests performed before and after the vibration and shock testing showed that the HTV remained leaktight under the specified conditions. This report documents the tests performed and the test results. DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, rcwmmendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expnssed herein do not necessarily state or reflect those of the United States Government or any agency thereof.

SUMMARYThis paper considers the treatment of fluid-solid interaction problems under shock wave loading, where the solid experiences large bulk Lagrangian displacements. This work addresses the issues associated with using a level set as a generalized interface for fluid-solid coupling where the fluid-solid interface is embedded in an unstructured fluid grid. We outline the formulation used for the edge-based unstructuredgrid Euler solver. The identification of the fluid-solid interface on the unstructured fluid mesh uses a super-sampled L 2 projection technique, which in conjunction with a Lagrangian interface position, permits fast identification of the interface and the concomitant imposition of boundary conditions. The use of a narrow-band approach for the identification of the wetted interface is presented with the details of the construction of interface conditions. A series of two and three-dimensional shock-body computations are presented to demonstrate the validity of the current approach on problems with static and dynamic interfaces, including projectile/shock interaction simulations.

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