Maryland's Defense Patent Database

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Multi-layer matrix composite having improved energy absorption, dissipation and shock wave mitigation capabilities

Patent image
CCDC ARL

The disclosure relates to matrix composites comprising high strain-rate sensitive elastomers in a multi-layer construct which provide ballistic-resistant material systems with enhanced protection against blast damage as well as ballistic impact. According to one embodiment, a matrix composite for impact resistance and blast mitigation formed in a multi-layer configuration may include: (a) one or more outer layers comprising poly(urethane urea) having a strain-rate sensitivity characteristic in the range of 1,000/sec to 1,000,000/sec; and (b) one or more inner layers comprising poly(urethane urea) having a strain-rate sensitivity characteristic in the range of 10,000/sec to 1,000,000/sec.

Inventors: 
Hsieh, Alex Jer-yann; Chantawansri, Tanya L.; Andzelm, Jan W.
Patent Number: 
Technical domain: 
Machines and Processing
FIle Date: 
2013-09-10
Grant Date: 
2016-11-22
Grant time: 
1,169 days
Grant time percentile rank: 
21
Claim count percentile rank: 
8
Citations percentile rank: 
1
'Cited by' percentile rank: 
1
Assignee: 
US ARMY