pdf elastomer steel laminate armor researchgate

(PDF) Elastomers in Armour Applications - ResearchGate

[1] C.M. Roland et al., Elasto mer-steel laminate ar mor, Composite structures 92 (2010) 1059- 1064 [2] R.J. Varley and S. v.d. Zwaag, Towards an understanding of thermally activated selfhealing(PDF) Elastomersteel laminate armor - ResearchGateMar 11, 2020 · Elastomersteel laminate armor Article (PDF Available) in Composite Structures 92(5):1059-1064 · April 2010 with 215 Reads How we measure 'reads'

Elastomer-metal laminate armor

armor is described in several publications [39,40,41,42]. The metal for the laminate was either aluminum (2024-T3 alloy) or titanium (grade 2). Plates of High Hard Steel (HHS, Mil-A-46100E; Brinell hardness ~500) or Ultra High Hard Steel (UHHS; Brinell hardness ~600) served as the substrate.Impact-Resistant Elastomeric CoatingsThe result is armor having improvements in ballistic performance of ca. 50% without additional weight (or substantial reductions in areal density without loss of penetration resistance). Variations on this approach, using multiple rubber/steel layers or replacing the elastomer coating with a laminate comprisedArmor including a strain rate hardening elastomer - The pdf elastomer steel laminate armor researchgateNov 27, 2007 · 20. The armor laminate of claim 19, wherein said rigid plate is selected from the group consisting of a ceramic, a metal, and a composite. 21. The armor laminate of claim 19, wherein said elastomer has a Young's modulus of at least about 4000 psi at 400% strain. 22.

Rubber research may extend life of amphibious assault

armor itself is a laminate of high hard steel, which by itself is good for ballistics; a rubber layer; then there's another soft steel layer in the back," says Roland. The problem is that the pdf elastomer steel laminate armor researchgateRubber research may extend life of amphibious assault armor itself is a laminate of high hard steel, which by itself is good for ballistics; a rubber layer; then there's another soft steel layer in the back," says Roland. The problem is that the pdf elastomer steel laminate armor researchgateBallistic performance of front-facing fluoropolymer-coated pdf elastomer steel laminate armor researchgateApr 01, 2018 · Laminate systems of PTFE polymer and a thin metal further increase the mass efficiency of composite armor systems. PTFE is a crystalline material that, unlike previously tested polyureas and other elastomers, does not undergo an impact-induced phase transition.

Body armour New materials, new systems - ScienceDirect

Jun 01, 2019 · 1. Background. It is extremely timely for a review of body armour materials and systems for the following reasons: (1) The National Institute of Justice, in the US, are currently in the final phase of revising their standard, with NIJ 0101.07 [], expected to be issued in 2019 [].This new standard will include guidance for testing of female body armour, and a radical step change in the range of pdf elastomer steel laminate armor researchgateBody armour New materials, new systems - ScienceDirectJun 01, 2019 · 1. Background. It is extremely timely for a review of body armour materials and systems for the following reasons: (1) The National Institute of Justice, in the US, are currently in the final phase of revising their standard, with NIJ 0101.07 [], expected to be issued in 2019 [].This new standard will include guidance for testing of female body armour, and a radical step change in the range of pdf elastomer steel laminate armor researchgateCHEMICAL/BIOCHEMICAL RESEARCHElastomer-Steel Laminate Armor C.M. Roland, 1 D. Fragiadakis, and R.M. Gamache2 1Chemistry Division 2Naval Surface Warfare Center, Indian Head Introduction: The final countermeasure against bombs and bullets is mitigation of the effects of the blast or ballistic impact. The rise of terrorism has led to increased efforts to develop better armor pdf elastomer steel laminate armor researchgate

CORE

The ballistic properties of laminate/steel structures are substantially better than conventional military armor. This enhanced performance has three origins: large energy absorption by the viscoelastic polymer, a significant strain-hardening of the material, and lateral spreading of the impact force.COREThe ballistic properties of laminate/steel structures are substantially better than conventional military armor. This enhanced performance has three origins: large energy absorption by the viscoelastic polymer, a significant strain-hardening of the material, and lateral spreading of the impact force.Ceramic Armor - an overview | ScienceDirect TopicsQuantifying and optimizing ceramic armor systems require attention to the following factors where RHA armor steel is the reference material in all cases:. AD: Areal density measured in kg/m 2.The lower this is, the more weight efficient the armor. V50: Projectile velocity (for a given projectile type, armor system, and AD value) at which 50% of impact events correspond to penetration, and pdf elastomer steel laminate armor researchgate

CiteSeerX Keywords: Armor Penetration resistance

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Ballistic impact a b s t r a c t Elastomeric coatings have been found to substantially increase the ballistic limit of underlying steel sub-strates, with an important mechanism being the impact-induced transition of the rubber to the glassy state. A composite array of elastomersteel panels has been found to further pdf elastomer steel laminate armor researchgateCoating/substrate interaction in elastomer-steel bilayer armorRequest PDF | Coating/substrate interaction in elastomer-steel bilayer armor | The properties of steel substrates coated with soft polymers were characterized, in order to assess their connection pdf elastomer steel laminate armor researchgateComposite Structures | Vol 92, Issue 5, Pages 1039-1282 pdf elastomer steel laminate armor researchgateExperimental analysis of failures in filled hole compression tests of carbon/epoxy laminate B. Castanié, S. Crézé, J.J. Barrau, F. Lachaud, L. Risse Pages 1192-1199

Composite Structures

Elastomersteel laminate armor C.M. Rolanda,*, D. Fragiadakisa, R.M. Gamacheb a Naval Research Lab, Chemistry Division, Code 6120, Washington, DC 20375-5342, USA bNaval Surface Warfare Center, Research and Technology Dept., Indian Head, MD 20640, USA article info Article history: Available online xxxx Keywords: Armor Penetration resistance Glass transitionEP0293786A2 - Composite armored seat - Google PatentsEP0293786A2 EP88108531A EP88108531A EP0293786A2 EP 0293786 A2 EP0293786 A2 EP 0293786A2 EP 88108531 A EP88108531 A EP 88108531A EP 88108531 A EP88108531 A EP 88108531A EP 0293786 A2 EP0293786 A2 EP 0293786A2 Authority EP European Patent Office Prior art keywords layer ceramic seat facing made up Prior art date 1987-06-04 Legal status (The legal status ESTIMATION OF ELASTOMERIC BRIDGE BEARING SHEAR Delamination or split of steel and elastomer layers which causes extreme reduction in shear strength. 2. Tearing of elastomer layers, due to inadequate shear strength or incorrect design. 3. Crushing of elastomer layers, due to excessive overloads or rotation. 4. Aging of elastomer and thus loss of mechanical properties respect to design pdf elastomer steel laminate armor researchgate

Elastomer-metal laminate armor - ScienceDirect

Elastomer-metal laminate armor. pdf elastomer steel laminate armor researchgate The ballistic properties of laminate/steel structures are substantially better than conventional military armor. This enhanced performance has three origins: large energy absorption by the viscoelastic polymer, a significant strain-hardening of the material, and lateral spreading of the impact force. pdf elastomer steel laminate armor researchgateElastomer-metal laminate armor - ScienceDirectDec 05, 2016 · The data in Fig. 1 and Table 1, Table 2, Table 3 show that changes in the laminate/steel construction has a surprisingly small effect (< 5%) on performance. Of course, using more material (e.g., more or thicker layers) enhances performance, as shown in Fig. 2.The relevant question is how does the V-50 of the laminate compare to that achieved using only steel.Elastomer-metal laminate armor | Request PDF - ResearchGateRequest PDF | Elastomer-metal laminate armor | A study was carried out of pressure wave transmission and the ballistic penetration of steel substrates incorporating a front-face laminate, the pdf elastomer steel laminate armor researchgate

Elastomer-metal laminate armor

armor is described in several publications [39,40,41,42]. The metal for the laminate was either aluminum (2024-T3 alloy) or titanium (grade 2). Plates of High Hard Steel (HHS, Mil-A-46100E; Brinell hardness ~500) or Ultra High Hard Steel (UHHS; Brinell hardness ~600) served as the substrate.Elastomersteel laminate armor - ScienceDirectApr 01, 2010 · Elastomersteel laminate armor. Author links open overlay panel C.M. Roland a D. Fragiadakis a R.M. Gamache b. Show more. pdf elastomer steel laminate armor researchgate The reasons for the decoupling of rubber properties and armor coating performance are twofold: The viscoelastic behavior of the materials is different, so that their response to changes in strain rate can be quite pdf elastomer steel laminate armor researchgateExperimental Investigation of Polyurea-Coated Steel Plates pdf elastomer steel laminate armor researchgateTo improve the survivability of ship structures at underwater explosion, thin steel plates coated with polyurea were used to investigate the blast protection effect. During the experimental tests of bare steel plates at different standoff, an appropriate distance was selected as the reference standoff to perform the tests of coated plates.

Experimental Investigation of Polyurea-Coated Steel Plates pdf elastomer steel laminate armor researchgate

To improve the survivability of ship structures at underwater explosion, thin steel plates coated with polyurea were used to investigate the blast protection effect. During the experimental tests of bare steel plates at different standoff, an appropriate distance was selected as the reference standoff to perform the tests of coated plates.Fucking NERA everywhere - Ballistics Science Discussion pdf elastomer steel laminate armor researchgateNov 09, 2015 · NERA, or Non Explosive Reactive Armor, consists of layers of steel (or titanium) and layers of some polymer (usually rubber). When the armor is penetrated by a threat, the rubber reacts, causing the steel to shift and bulge, feeding more steel into the path of the threat.Fucking NERA everywhere - Ballistics Science Discussion pdf elastomer steel laminate armor researchgateNov 09, 2015 · NERA, or Non Explosive Reactive Armor, consists of layers of steel (or titanium) and layers of some polymer (usually rubber). When the armor is penetrated by a threat, the rubber reacts, causing the steel to shift and bulge, feeding more steel into the path of the threat.

Introduction to Composite Materials

is called a laminate. Continuous-fiber compos-ites are normally laminated materials (Fig. 1.8) in which the individual layers, plies, or laminae are oriented in directions that will enhance the strength in the primary load direction. Unidirec-tional (0°) laminae are extremely strong and stiff in the 0° direction. However, they are very weakOn the comparison of the ballistic performance of steel pdf elastomer steel laminate armor researchgateRequest PDF | On the comparison of the ballistic performance of steel and laminated composite armors | Steels have been widely used as armor materials in defense applications, but they have the pdf elastomer steel laminate armor researchgateOn the dynamics of localization and fragmentation: V pdf elastomer steel laminate armor researchgateDec 22, 2011 · In this series of papers, we investigate the mechanics and physics of localization and fragmentation in ductile materials. The behavior of ductile metals at strain rates of about 4,00015,000 per second is considered. The expanding ring experiment is used as the vehicle for examining the material behavior in this range of strain rates. In Parts IIII, we examined the response of rings with pdf elastomer steel laminate armor researchgate

Polymer Coatings with Embedded Hollow Spheres for Armor pdf elastomer steel laminate armor researchgate

Dec 31, 2015 · A lightweight armor system providing blast protection and ballistic protection against small arms fire, suitable for use in helmets, personnel or vehicle protection, and other armor systems. A hard substrate is coated on the front surface with a thin elastomeric polymer layer, in which hollow ceramic or metal spheres are encapsulated.Thermoplastic Elastomer (TPE) FAQs | AvientThey are the metallocene-catalyzed polyolefin plastomers & elastomers, and reactor-made thermoplastic polyolefin elastomers. Traditional TPE types are known as two-phase systems. Essentially, a hard thermoplastic phase is coupled mechanically or chemically with a soft elastomer phase, resulting in a TPE that has the combined properties of the pdf elastomer steel laminate armor researchgateThermoplastic Elastomer (TPE) FAQs | AvientThey are the metallocene-catalyzed polyolefin plastomers & elastomers, and reactor-made thermoplastic polyolefin elastomers. Traditional TPE types are known as two-phase systems. Essentially, a hard thermoplastic phase is coupled mechanically or chemically with a soft elastomer phase, resulting in a TPE that has the combined properties of the pdf elastomer steel laminate armor researchgate

US20070111621A1 - Armor including a strain rate hardening pdf elastomer steel laminate armor researchgate

The armor may be used independently of a substrate or may be attached by any means to a substrate that it is intended to protect. Protection against blast and ballistic damage is improved by encapsulating or sandwiching rigid inclusions (for example, tiles) or a rigid plate by a high-strain rate hardening elastomer.US4781389A - Flat sealing gasket having graphite-filled pdf elastomer steel laminate armor researchgateUS4781389A US06/890,947 US89094786A US4781389A US 4781389 A US4781389 A US 4781389A US 89094786 A US89094786 A US 89094786A US 4781389 A US4781389 A US 4781389A Authority US United States Prior art keywords gasket graphite defined flat sealing sealing gasket Prior art date 1985-08-09 Legal status (The legal status is an assumption and is not a legal conclusion.USRE46898E1 - Polymer coatings for enhanced and field pdf elastomer steel laminate armor researchgateUSRE46898E1 US15/585,598 US201715585598A USRE46898E US RE46898 E1 USRE46898 E1 US RE46898E1 US 201715585598 A US201715585598 A US 201715585598A US RE46898 E USRE46898 E US RE46898E Authority US United States Prior art keywords armor transparent substrate coating cm Prior art date 2014-07-01 Legal status (The legal status is an assumption and is not a legal conclusion.

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