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Title: Computational methods for predicting the response of critical as-built infrastructure to dynamic loads (architectural surety)

Abstract

Coupled blast-structural computational simulations using supercomputer capabilities will significantly advance the understanding of how complex structures respond under dynamic loads caused by explosives and earthquakes, an understanding with application to the surety of both federal and nonfederal buildings. Simulation of the effects of explosives on structures is a challenge because the explosive response can best be simulated using Eulerian computational techniques and structural behavior is best modeled using Lagrangian methods. Due to the different methodologies of the two computational techniques and code architecture requirements, they are usually implemented in different computer programs. Explosive and structure modeling in two different codes make it difficult or next to impossible to do coupled explosive/structure interaction simulations. Sandia National Laboratories has developed two techniques for solving this problem. The first is called Smoothed Particle Hydrodynamics (SPH), a relatively new gridless method comparable to Eulerian, that is especially suited for treating liquids and gases such as those produced by an explosive. The SPH capability has been fully implemented into the transient dynamics finite element (Lagrangian) codes PRONTO-2D and -3D. A PRONTO-3D/SPH simulation of the effect of a blast on a protective-wall barrier is presented in this paper. The second technique employed at Sandia National Laboratoriesmore » uses a relatively new code called ALEGRA which is an ALE (Arbitrary Lagrangian-Eulerian) wave code with specific emphasis on large deformation and shock propagation. ALEGRA is capable of solving many shock-wave physics problems but it is especially suited for modeling problems involving the interaction of decoupled explosives with structures.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Sandia National Labs., Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Financial Management and Controller, Washington, DC (United States)
OSTI Identifier:
658454
Report Number(s):
SAND-98-1240
ON: DE98005875; BR: YN0100000; TRN: AHC2DT06%%338
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Jun 1998
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; BUILDINGS; BLAST EFFECTS; DYNAMIC LOADS; SEISMIC EFFECTS; SYSTEMS ANALYSIS; P CODES; A CODES; SHOCK WAVES; COMPUTERIZED SIMULATION; MECHANICAL STRUCTURES

Citation Formats

Preece, D.S., Weatherby, J.R., Attaway, S.W., Swegle, J.W., and Matalucci, R.V. Computational methods for predicting the response of critical as-built infrastructure to dynamic loads (architectural surety). United States: N. p., 1998. Web. doi:10.2172/658454.
Preece, D.S., Weatherby, J.R., Attaway, S.W., Swegle, J.W., & Matalucci, R.V. Computational methods for predicting the response of critical as-built infrastructure to dynamic loads (architectural surety). United States. doi:10.2172/658454.
Preece, D.S., Weatherby, J.R., Attaway, S.W., Swegle, J.W., and Matalucci, R.V. Mon . "Computational methods for predicting the response of critical as-built infrastructure to dynamic loads (architectural surety)". United States. doi:10.2172/658454. https://www.osti.gov/servlets/purl/658454.
@article{osti_658454,
title = {Computational methods for predicting the response of critical as-built infrastructure to dynamic loads (architectural surety)},
author = {Preece, D.S. and Weatherby, J.R. and Attaway, S.W. and Swegle, J.W. and Matalucci, R.V.},
abstractNote = {Coupled blast-structural computational simulations using supercomputer capabilities will significantly advance the understanding of how complex structures respond under dynamic loads caused by explosives and earthquakes, an understanding with application to the surety of both federal and nonfederal buildings. Simulation of the effects of explosives on structures is a challenge because the explosive response can best be simulated using Eulerian computational techniques and structural behavior is best modeled using Lagrangian methods. Due to the different methodologies of the two computational techniques and code architecture requirements, they are usually implemented in different computer programs. Explosive and structure modeling in two different codes make it difficult or next to impossible to do coupled explosive/structure interaction simulations. Sandia National Laboratories has developed two techniques for solving this problem. The first is called Smoothed Particle Hydrodynamics (SPH), a relatively new gridless method comparable to Eulerian, that is especially suited for treating liquids and gases such as those produced by an explosive. The SPH capability has been fully implemented into the transient dynamics finite element (Lagrangian) codes PRONTO-2D and -3D. A PRONTO-3D/SPH simulation of the effect of a blast on a protective-wall barrier is presented in this paper. The second technique employed at Sandia National Laboratories uses a relatively new code called ALEGRA which is an ALE (Arbitrary Lagrangian-Eulerian) wave code with specific emphasis on large deformation and shock propagation. ALEGRA is capable of solving many shock-wave physics problems but it is especially suited for modeling problems involving the interaction of decoupled explosives with structures.},
doi = {10.2172/658454},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {6}
}