Air blast load generation for simulating structural response

The current research presents a detailed methodology for generating air blast loading for use within a finite element context. Parameters describing blast overpressure loading on a structure are drawn from open literature sources and incorporated within a blast load generation computer code developed for this research. This open literature approach lends transparency to the details of the blast load modeling, as compared with many commonly used approaches to blast load generation, for which the details are not publicly available. As a demonstration, the load generation code is used with the finite element software LS-DYNA to simulate the response of a steel plate and girder subjected to explosions modeled using these parameters as well as blast parameters from other sources.

[1]  David Bogosian,et al.  Measuring Uncertainty and Conservatism in Simplified Blast Models , 2002 .

[2]  P. Symonds,et al.  Anomalous elastic–plastic responses to short pulse loading of circular plates , 2003 .

[3]  D. Agard,et al.  Microtubule nucleation by γ-tubulin complexes , 2011, Nature Reviews Molecular Cell Biology.

[4]  W. E. Baker,et al.  Explosion Hazards and Evaluation , 2012 .

[5]  James T. Baylot,et al.  Uncertainties in Blast Loads on Structures , 2007 .

[6]  Donald W. Murrell,et al.  Development of an Improved Methodology for Predicting Airblast Pressure Relief on a Directly Loaded Wall , 2007 .

[7]  Glenn Randers-Pehrson,et al.  Airblast Loading Model for DYNA2D and DYNA3D. , 1997 .

[8]  J. Kajberg,et al.  Viscoplastic parameter estimation by high strain-rate experiments and inverse modelling – Speckle measurements and high-speed photography , 2007 .

[9]  David Cormie,et al.  Blast Effects on Buildings , 2019 .

[10]  Haym Benaroya,et al.  Pulse–pressure loading effects on aviation and general engineering structures—review , 2005 .

[11]  W. Gene Corley Lessons Learned on Improving Resistance of Buildings to Terrorist Attacks , 2004 .

[12]  Rakesh K. Kapania,et al.  Review of two methods for calculating explosive Air blast , 2001 .

[13]  F.B.A. Beshara Modelling of blast loading on aboveground structures - II. Internal blast and ground shock , 1994 .

[14]  Haym Benaroya,et al.  Sensitivity analysis of blast loading parameters and their trends as uncertainty increases , 2009 .

[15]  S. Bhattacharya,et al.  Sensitivity of plate response calculations to blast load definition , 1991 .

[16]  G. R. Johnson,et al.  Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures , 1985 .

[17]  R. Andersson,et al.  Development of high strain rate equations for stainless steels , 2005, Journal of Materials Engineering and Performance.

[18]  John Hetherington,et al.  Blast and ballistic loading of structures , 1994 .

[19]  G. F. Kinney,et al.  Explosive Shocks in Air , 1985 .

[20]  W. E. Baker Explosions in air , 1973 .

[21]  Brode Quick estimates of peak overpressure from two simultaneous blast waves. Topical report oct-dec 77 , 1977 .