Functionally-Graded NPR (Negative Poisson's Ratio) Material for a Blast-Protective Deflector

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Abstract:

A functionally-graded NPR Negative Poissons Ratio material concept has been developed for a critical Army application - blast protection. The objective is to develop a combined computational design methodology and innovative structural-material concept for a blast-protective deflector, which can concentrate material into areas most needed and adapt its shape utilizing the blast energy to improve blast mitigation and crew protection. Included in the computational design methodology is optimal deflector shape design and optimal NPR material distribution to further improve the protection while minimizing the C.G. height of the vehicle and the weight of the deflector. Structures fabricated using this new concept react to the explosion and reconfigure themselves under the blast force to provide maximum blast protection. The presented research work consists of two basic approaches to deflector design optimal deflector shape design and optimal NPR material configuration and distribution in the innovative deflector.

Author(s):
Ma, Zheng-dong ; Bian, Hongxin ; Sun, Ce ; Hulbert, Gregory M. ; Bishnoi, Krishan ; Rostam-abadi, Farzad
Author Organization(s):
MICHIGAN UNIV ANN ARBOR
Descriptive Note:
Conference paper
Supplementary Note:
Presented at 2010 NDIA Ground Vehicle Systems Engineering and Technology Symposium Modeling & Simulation, Testing and Validation (MSTV) Mini-Symposium held in Dearborn Michigan on August 17-19, 2010. Published in Proceedings of the 2010 NDIA Ground Vehicle Systems Engineering and Technology Symposium Modeling & Simulation, Testing and Validation (MSTV) Mini-Symposium, p1-12, Aug 2010. The original document contains color images.
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
W56HZV-09-C-0037
Monitor Series:
TARDEC
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_5_Command and Control; JCA_5.3_Planning; JCA_1.2.6_Concepts; JCA_4.6_Engineering; JCA_8_Building Partnerships; JCA_1.2.3_Educating; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_8.2_Shape
Communities of Interest:
Ground and Sea Platforms
Descriptor(s):
*POISSON RATIO, *DEFLECTORS, CREWS, BLAST, COMPUTATIONS, SYMPOSIA, PROTECTION
Field(s)/Group(s):
Electricity and Magnetism, Solid State Physics
Keyword(s):
NPR(NEGATIVE POISSON S RATIO), BLAST PROTECTIVE DEFLECTORS
Report Date:
2010 Aug 17
Creation Date:
2010 Oct 27