Fragmentation & Debris Dispersion Measurement & Prediction 

Protective structures must be designed to withstand blast and fragments or structural debris. Southwest Research Institute® (SwRI®) has long been involved in the measurement and prediction of explosive debris launch characteristics and dispersion. The SwRI Engineering Dynamics Department combines experimental and analytical capabilities to develop debris prediction software, validated with data, that can be used to conduct quantity-distance (QD) evaluations or explosive accident forensics.

Capabilities

• Measurement and prediction of debris throw and dispersion
• Measurement and prediction of debris launch parameters
• Scale model analysis and testing
• Software development and validation
• Roll and ricochet effects on debris dispersion
• QD evaluation per established safety regulations

1/20th scale model of aircraft shelter

Experience

• Facility siting studies
• Development of DISPRE software for QD evaluation
• Aircraft shelter hazards analysis
• Debris throw analysis for accidental explosions
• Prediction of fragment loads on structures

Facilities

• Ballistics and explosives test range
• Remote test sites
• Testing up to 1000 lbs HE
• Fabrication and machine shop facilities

Debris dispersion software

Full-scale wall fragmentation test

SwRI Engineering Dynamics Department staff members analyze the explosive effects of bare and cased charges including structural breakup, debris throw, air blast, and scaling.

This flyer was published in April 2009. For more information about Fragmentation & Debris Dispersion Measurement & Prediction, contact P. A. Cox, (210) 522-2315, or Scott A. Mullin, (210) 522-2340, Mechanical Engineering Division, Southwest Research Institute, P.O. Drawer 28510, San Antonio, Texas 78228-0510.

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