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Title: Modeling the Blast Load Simulator Airblast Environment Using First Principles Codes. Report 2, Blast Load Simulator Environment, Single Structures
Authors: Bessette, Gregory C.
O’Daniel, James L.
Akers, Stephen A.
Barnes, Andrew T.
Emmanuelli, Gustavo
Hunt, Mark A.
Weed, R. A.
Keywords: Blast simulator
Blast effect--Testing
Validation and verification
Shock tubes
Shock (Mechanics)
Detonation waves
Computer simulation
Mathematical models
Pressure gages
Pressure gages
Scientific apparatus and instruments
Publisher: Geotechnical and Structures Laboratory (U.S.)
Series/Report no.: Technical Report (Geotechnical and Structures Laboratory (U.S.));no.ERDC/GSL TR-16-31 Report 2
Abstract: The Blast Load Simulator (BLS) at the U.S. Army Engineer Research and Development Center (ERDC) has been utilized for applying simulated blast loads on structures for over a decade. An integrated experimental and computational program was undertaken to evaluate first principles codes (FPCs) for modeling airblast environments typical of those encountered in the BLS. The FPCs considered are CTH, DYSMAS, Loci/BLAST, and SHAMRC. The modeling is a multi-year effort and utilizes a number of BLS configurations for the code evaluation. The modeling discussed herein builds upon the first year, which examined the flow environment within an empty BLS and a case involving a single box-like structure. The current effort expands on the single-structure scenario by employing venting at the target end of the BLS to mitigate upstream reflections and ensure a more ideal loading pulse on the structure. Three structure configurations are considered for this effort. The first is a baseline case with the front face of the box oriented perpendicular to the incoming flow. The remaining two configurations consider a rotated box at 30- and 45-deg obliquity with respect to the incoming flow. Comparisons of modeling results and BLS measurements are discussed. Shortcomings in the modeling physics are identified, and areas for improvement are noted for future development.
Description: Technical Report
Gov't Doc #: ERDC/GSL TR-16-31 Report 2
Rights: Approved for public release; distribution is unlimited
Appears in Collections:Technical Report

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