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NCJ Number: 252954 Find in a Library
Title: Post-Blast Investigative Tools for Structural Forensics by 3D Scene Reconstruction and Advanced Simulation
Author(s): Matthew Whelan; David Weggel
Corporate Author: University of North Carolina at Charlotte
United States of America
Date Published: May 2019
Page Count: 19
Sponsoring Agency: National Institute of Justice (NIJ)
Washington, DC 20531
University of North Carolina at Charlotte
Charlotte, NC 28223-0001
US Dept of Justice NIJ Pub
Washington, DC 20531
Grant Number: 2014-DN-BX-K004
Sale Source: US Dept of Justice NIJ Pub
810 Seventh Street, NW
Washington, DC 20531
United States of America
Document: PDF
Type: Program/Project Description; Report (Grant Sponsored); Report (Study/Research); Research (Applied/Empirical)
Format: Document; Document (Online)
Language: English
Country: United States of America
Annotation: The purpose of this research was to develop an approach for using structural and non-structural building components as “witness” to blast events that can reveal the charge weight, composition, and epicenter of an explosion.
Abstract: The primary objective of the research was to assess the use of low-cost scanning technologies for 3D scene reconstruction, as well as other non-destructive inspection technologies that could improve the collection of post-blast investigative field evidence. A second objective was to develop the basis of a scientific, physics-based methodology for objective and quantitative determination of charge weight, composition, and epicenter from on-site measurements of the condition of structural and non-structural components damaged by the blast overpressure. In addition, the development and validation of a physics-based methodology could enable automated estimation of charge weight, composition, and epicenter when paired with the high-resolution and accurate 3D scene reconstructions produced by modern 3D scanning tools. The project also pursued the development, verification, and validation of a Blast Dynamics Simulator, based on an implementation of the Applied Element Method to enable prediction of component behavior through fracture, fragmentation, and development of a debris field. The project succeeded in providing a foundation for introducing 3D scanning and reconstruction tools for documentation of post-blast forensic scenes, specifically the reconstruction and profiling of blast-induced damage to structural and non-structural building components. Over the long term, the improved scene documentation tools assessed in this project could facilitate the development of a database of scientific data from post-blast investigations that may produce data-driven heuristics for forensic benchmarking and advanced empirical study of explosive effects on conventional building structures. The initial development of a Blast Dynamics Simulator in this project can assist in promoting post-blast forensic investigations. 7 references, 1 table, and 14 references
Main Term(s): Forensic sciences
Index Term(s): Automated crime analysis; Bombings; Crime Scene Analysis; Crime Scene Investigation; Crime simulation; Explosives; Explosives training; National Institute of Justice (NIJ); NIJ final report
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