DDESB TP13 Software Update, 2010 DDESB Seminar
NAVAL FACILITIES ENGINEERING COMMAND PORT HUENEME CA ENGINEERING SERVICE CENTER
Pagination or Media Count:
he Department of Defense Explosives Safety Board DDESB Technical Paper TP 13 computational process entails the use of three computer applications SHOCK, FRANG and MUDEMIMP. SHOCK and FRANG are used to compute the shock and gas impulse on each component surface of a donor structure. The outputs from both codes, in addition to several component breakup characteristics that are derived from the results, are used as input for the MUDEMIMP code. MUDEMIMP is used to determine debris dispersion and debris tumble after impact. The Naval Facilities Engineering Service Center NAVFAC ESC has been tasked by DDESB to update an existing NAVFAC ESC software that automates the TP 13 computational process. The existing software, BLibPre, was sponsored by DDESB and was developed in 1998. The software allows the user to model only a single location of the explosive in 3D space. While the designated location may be optimum for one surface it may not be optimum for the other surfaces. NAVFAC ESC has developed an algorithm to optimize the location of the explosive to cause maximum hazardous debris distance for each component being evaluated. The optimization update allows the user to specify an envelope within the donor structure. The algorithm generates a computational grid inside the defined envelope and calculates the debris distance for each surface at each grid point. The results from the entire grid are analyzed and the charge location that maximizes the hazardous debris distance is identified for each component surface. The effectiveness of the optimization and its benefit to the explosive safety siting community will be discussed. The original code used a text-based input file and a text based output file. To make the software easier, a Windows graphical user interface will be added to the software to make its use simpler and more interactive.
- Computer Programming and Software
- Safety Engineering
- Structural Engineering and Building Technology