Pbxn 110 warhead results pbxw11 density gcc results 1. For example, pbxn 110, composed of 88% hmx and 12% polymeric binder, is designed to fragment a warheads metal case and drive the fragments at high velocity, whereas pbxn 109, composed of 64% rdx. All military bulk explosives are processed and tested to the applicable milspec standards and all commercial bulk explosives are custom blended for their specific application. Ep1417161a2 high performance plastic bonded explosive. Pbxn 110 is a highenergy explosive intended for use. The fy 1986 procurement of navy blu 110 b mk83 lb bomb was being loaded with pbxn109 and the fy 88 89 procurement of navy blu111 mk82 500 lb bomb was either being loaded or was scheduled to be loaded with pbxn109. Mechanical behavior of polymers pbxw 128 and pbxn 110.
This paper explores the characteristics of the aforementioned polymeric materials at di erent strain rates and temperatures. The composition of the pure htpb binder analog will be discussed later in this section. The response of the hmxbased material pbxn9 to thermal. We also share information about your use our our site with our social media, advertising and analytics partners who may combine it with other information that youve provided to them or that theyve collected from your use of their services. Pbxn109 65% rdx, 21% al, 7 wt% htpb hydroxyterminated polybutadiene, 7 wt% doa dioctyl adipate. The ton of tnt is a unit of energy defined by that convention to be 4. Compressive properties of pbxn5 and pbxw11 before and. A design goal for nuclear weapons, to ensure that a single builtin detonator firing, or an external explosive charge fired next to the weapon, could not result in a nuclear yield greater than two kilograms tnt. Nonshock initiation model for plastic bonded explosive. Insensitive munitions technology for solid rockets chapter 9 of the book. Composition a is used by the military in land mines and 2. Validation of the andrews experiment with pbxn111 and pbxn110.
High nitramine containing explosives utilized to achieve target defeat. Mechanical properties of plasticbonded explosive binder. The energy content was about the same for all three explosives and thus there would be no degradation in warhead performance. The compressive stressstrain response of pbxw128 and pbxn 110 was found to be dependent on strain rate and temperature. He is widely acknowledged as the foremost expert in pbx private branch exchange and acd automatic call distribution communications systems today. Compressive properties of pbxn5 and pbxw11 before and after ageing at 60oc for 3 and 6 months gunnar ove nevstad forsvarets forskningsinstituttnorwegian defence research establishment ffi 30 may 2008. Plastic bonded explosive pbx compositions utilizing cl20 as the oxidizer, and. Hmx compositions with teflonbased binders were developed in 1960s and 1970s for gun. Deflagration behavior of pbxn109 and composition b at. As a result, pbxn9 has been considered as an interim insensitive high explosive for conventional munitions systems. The polymer pbxn 110 is used as the matrix for the particlereinforced polymer composite pbxw128.
This explosive represents a family of plastically bonded explosives with good mechanical strength and rigid body properties. For example, pbxn110, composed of 88% hmx and 12% polymeric. Investigation of the effect of convergent detonation on metal. Mildtl82874 explosive, plasticbonded, pressed, pbxn7. Pbxn9 is an explosive that is less sensitive to certain insults, yet retains a high level of performance. Linear explosives tailored cutting explosives pacsci emc. Mildtl82901 explosive, plasticbonded, cast pbxn 110 this specification covers the requirements for two types of cast pbxn 110 plasticbonded. Pbxw17 is the rdx analogue of pbxn9, which contains hmx and is thus more expensive. A manual of instruction for the operation of different types of pbx and pabx switchboards, speaking over the telephone, and a story about the business office lynott, mary louise on.
The tnt in composition b may be considered an energetic and lowmelting binder. These simulations require an unreactive hugoniot relationship. Pbxn110, performance and shock sensitivity parameters of 111. As expected, the strength of pbxn 110 was found to exhibit strong. The htpb binder in pbxn109 is highly plasticized and is fairly stable chemically. One reactive rate law of interest is the leetarver ignition and growth model. Cyclotetramethylene tetranitramine, wet with 10% water is a high explosive. May begin a vigorous reaction that culminates in a detonation if mixed with reducing agents, including hydrides, sulfides and nitrides. Isolate spill or leak area immediately for at least 500 meters mile in all directions. Consider initial evacuation for 800 meters 12 mile in all directions. Laboratory test data soon showed that pbxn106, the formulation developed by aerojet was considerably less sensitive to shock than composition a3 or composition b explosives. Numerical analyses have been performed to investigate the influence of shaped charge asymmetries in the jet characteristics.
Thermal decomposition and ignition of pbxn 110 plasticbonded explosive mine composites with tnt, 12th international detonation symposium, san diego, california, usa, august 1116, 2002. Pbxn 110 sleeve thickness, mm e ss y y 1 0 5775 1280 2 8303 1403 5 8318 1410 10 8314 1495 8320 1549 20 8317 1647 0. Detonation propagation and mach stem formation in pbxn9. Sciencemadness discussion board thermobaric explosives. Enhanced performance from insensitive explosives ronald brown, john gamble, dave amondson, ronald williams, paul murch, and joshua lusk. In other words, for each gram of tnt exploded, 4184 joules or one large. Pbxw17 has requirements for bulkdensity and flow characteristics. Pbxw17 is designed as a lowcost replacement for pbxn9. Typical equivalent analyses of binder components used to establish nominal composition are as follows. Interest in using new explosives to reduce the sensitivity. Other experimentally determined equivalent weights could result in slightly different weight percent values for these component materials. Performance modelling 2 pbxn 110 octol 7525 b u t y l n e n a g a p a. Meltcast compositions octol 7030, octol 7525, pressed composition hmx wax, pbxn3, pbxn5, pbxn9, hmx eurenco co nducts a policy of continual improvement and therefore reserves the right to change any of the data contained.
A polymerbonded explosive, also called pbx or plasticbonded explosive, is an. Certain of these systems incorporate wave control methodologies that require some form of reactive flow representation to achieve accurate. These much slower heating rates for pbxn9 were chosen because the rapid decomposition of hmx makes faster heating rate data e. The influence of asymmetries in shaped charge performance. Htpb, doa dioctyladipate, and ipdi isophorone diisocyanate.
Insensitive high explosives related articles citizendium. Pbxn 110, type ii is the preferred composition for general use. Comparisons made with predictions for octol 7525 and pbxn 110. Nortel meridian, avaya cs, ipoffice, bcm, norstar, callpilot, meridian mail, and other pbx equipment technical recipes, howto guides, and information for.
Both explosives are intended for use in metal acceleration andor fragmentation applications. The explosive content is composition b, or impact and heat insensitive pbxn 110 high explosive, around which are located 2500 steel spheres held in an epoxy resin matrix. There are several pbxn explosives, the 5 suffix is an arbitrary identifier which is assigned sequentially. A pure analog of the pbxn 110 binder system was tested for comparison to the strain rate and temperature dependence of the composite pbxn 110. The shock and detonation properties of the explosive pbxn103 have been simulated with the use of the cth hydrocode. Thermal decomposition and ignition of pbxn110 plastic. A manual of instruction for the operation of different types of pbx and pabx. Tnt equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion. Pbxn5 was the initial explosive material used experimentally to develop the dmgir model. Hmxbased compositions available according to nato standard or customertailored specifications. Bulk explosives products for the defense, aerospace. Pdf a simple method for calculating sympathetic detonation of.
Pbxn 110 is a plastic bonded explosive pbx with relatively high binder content that contains 88wt% hmx and 12wt% htpbbased binder. A polymerbonded explosive, also called pbx or plasticbonded explosive, is an explosive. This specification covers two types of pbxn 110 cast plasticbonded explosive see 6. Mildtl82901 explosive, plasticbonded, cast pbxn 110 this specification covers the requirements for two types of cast pbxn 110 plasticbonded explosive \see 6. May explode in the presence of a base such as sodium hydroxide or potassium hydroxide even in the presence of water. Allan sulkin is the founder of the teqconsult group, which advises enterprise communications providers on product development for customer premises. Hygroscopic properties of pbxn unt digital library. Pbxn111 composition is similar to some propellantsl. The material is composed of 95% hmx and 5% viton binder.
Figure 1 for steel impactors upon pbxn110 explosive e. The polymer bonded explosive pbxn109 has a composition of 65%. The composition of the polymeric samples, specific gravity, and reported glass transition temperature are summarized in table 1. Mil mildtl82901a explosive, plasticbonded, cast pbxn 110 superseding mile82901 standard by military specifications and standards.
An insensitive high explosive made with plastic bonding techniques, used in a wide range of u. Download citation deflagration behavior of pbxn109 and composition b at high pressures and temperatures we report deflagration rate measurements on pbxn109 rdwavhtpb and composition b. Stressstrain response of both polymeric materials under uniaxial compression is found to. Here is the source of composition pbxih5pbxn1 and cool article optical pyrometry of fireballs of metalized explosives from propellants, explosives, pyrotechnics its about testing a charges composed from metallic particles saturated with sensitized nm. Pbxn 110 main safety and im characteristics are maintained, especially a very good behavior under bullet impacts b2265a is qualified by the french mod according to the stanag 4170 b2273a qualification is in progress. A polymerbonded explosive, also called pbx or plasticbonded explosive, is an explosive material in which explosive powder is bound together in a matrix using small quantities typically 510% by weight of a synthetic polymer. High performance polymerbonded explosive containing. This controlled prefragmentation feature ensures that the antipersonnel effects of the mapam are greater than those of comparable conventional bombs by a factor of between 1. This website uses cookies we use cookies to personalise content and ads, to provide social media features and to analyse our traffic. Pbxs are normally used for explosive materials that are not easily melted into a casting, or are otherwise difficult to form. Aes processes bulk explosives to meet the exacting requirements of commercial and military applications.
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