Study on Blast-Resistant Structural Design of a Truck Cab

Abstract:

This paper first presented modeling methods and procedures aiming to a truck cab and its occupant under blast loading, followed by numerical simulation analysis of dynamic responses of the cab and blast injuries of the occupant by using Ls_Dyna. According to energy history the response duration can be divided into three phases, corresponding to local effect, whole effect and drop down effect. And two schemes for cab blast-resistant design including an aluminum foam sandwich plate and a V-shape deflector were put forward. Using the proposed numerical models, response characters of the two schemes were analyzed, advantages and shortcomings were compared with the initial design. Simulation results show that dynamic responses of cab structure and occupants decrease obviously by using sandwich structure filled aluminum foam, but for a V-shaped deflector it is very difficult to protection the cab structure and occupants simultaneously. And effect of several key parameters, i.e. relative density of foam core, and core thickness were discussed also.

• Periodical: Applied Mechanics and Materials (Volumes 66-68)
• Pages: 2136-2141
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.66-68.2136
• Online since: July 2011
• Authors: Shou Hong Han, Zhen Hua Lv
• Keywords: Mechanics of Explosion, Numerical Simulation, Sandwich Plate, Shock Wave, V-Shaped Deflector

References

[1] Williams K, Poon K. A Numerical Analysis of the Effect of Surrogate Anti-Tank Mine Blasts on the M113: Valcartier, Val-Belair, QC.: Defence R&D Canada, (2000).

[2] Williams K, Fillion-Gourdeau F. Numerical Simulation of Light Armoured Vehicle Occupant Vulnerability to Anti-Vehicle Mine Blast. Dearborn, Michigan: (2002).

[3] Test Methodology for Protection of Vehicle Occupants against Anti-Vehicular Landmine Effects: NATO Research and Technology Organisation, (2007).

[4] Sakaray U. Design and optimization of joints to mitigate shock in military vehicles under blast and impact loading: [master of Science degree in Mechanical Engineering]. Las Vegas: Graduate College University of Nevada, (2006).

[5] Dillon J M, V K, Strittmatter. Tactical wheeled vehicles and crew survivability in landmine explosions: Department of the Army, U. S Army Electronic Sensors Directorate, 1998, 86, 121.

[6] Authur T. Revitalization of dummy models and barrier models in VPG Environment: (2006).

[7] Ls-Dyna Keyword User's Manual Volume I, Version 971, Livermore Software Technology Corporation, (2007).

[8] Williams K, Mcclennan S, Durocher R, et al. Validation of a Loading Model for Simulating Blast Mine Effects on Armoured Vehicles. Dearborn, Michigan: (2002).

[9] Styles M, Compston P, Kalyanasundaram S. Finite element modeling of core thickness effects in aluminium foam/composite sandwich structures under flexural loading. Composite Structures, 2008, 86(1-3): 227～232.

DOI: 10.1016/j.compstruct.2008.03.024