The ton of tnt is a unit of energy defined by that convention to be 4. Pbxn 110, type ii is the preferred composition for general use. 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. This explosive represents a family of plastically bonded explosives with good mechanical strength and rigid body properties. 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. Validation of the andrews experiment with pbxn111 and pbxn110. Linear explosives tailored cutting explosives pacsci emc. One reactive rate law of interest is the leetarver ignition and growth model.
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. Insensitive high explosives related articles citizendium. The energy content was about the same for all three explosives and thus there would be no degradation in warhead performance. These simulations require an unreactive hugoniot relationship. Pbxn5 was the initial explosive material used experimentally to develop the dmgir model. Sciencemadness discussion board thermobaric explosives. Thermal decomposition and ignition of pbxn110 plastic. In other words, for each gram of tnt exploded, 4184 joules or one large. Both explosives are intended for use in metal acceleration andor fragmentation applications. 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. The htpb binder in pbxn109 is highly plasticized and is fairly stable chemically.
The response of the hmxbased material pbxn9 to thermal. Typical equivalent analyses of binder components used to establish nominal composition are as follows. Pbxn109 65% rdx, 21% al, 7 wt% htpb hydroxyterminated polybutadiene, 7 wt% doa dioctyl adipate. Nonshock initiation model for plastic bonded explosive. 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. The influence of asymmetries in shaped charge performance. Investigation of the effect of convergent detonation on metal. Pbxn 110 is a highenergy explosive intended for use. 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. Pbxs are normally used for explosive materials that are not easily melted into a casting, or are otherwise difficult to form. 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.
Allan sulkin is the founder of the teqconsult group, which advises enterprise communications providers on product development for customer premises. 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. He is widely acknowledged as the foremost expert in pbx private branch exchange and acd automatic call distribution communications systems today. Hmxbased compositions available according to nato standard or customertailored specifications.
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. A polymerbonded explosive, also called pbx or plasticbonded explosive, is an explosive. 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. Deflagration behavior of pbxn109 and composition b at. As expected, the strength of pbxn 110 was found to exhibit strong. Performance modelling 2 pbxn 110 octol 7525 b u t y l n e n a g a p a. Pbxn110, performance and shock sensitivity parameters of 111.
Composition a is used by the military in land mines and 2. Ep1417161a2 high performance plastic bonded explosive. These much slower heating rates for pbxn9 were chosen because the rapid decomposition of hmx makes faster heating rate data e. The tnt in composition b may be considered an energetic and lowmelting binder. The material is composed of 95% hmx and 5% viton binder. The model has been extended to cast explosives represented by composition b. Detonation propagation and mach stem formation in pbxn9. Pbxn9 is an explosive that is less sensitive to certain insults, yet retains a high level of performance. The compressive stressstrain response of pbxw128 and pbxn 110 was found to be dependent on strain rate and temperature. Compressive properties of pbxn5 and pbxw11 before and. Aes processes bulk explosives to meet the exacting requirements of commercial and military applications. Htpb, doa dioctyladipate, and ipdi isophorone diisocyanate. Pdf a simple method for calculating sympathetic detonation of. 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.
The polymer pbxn 110 is used as the matrix for the particlereinforced polymer composite pbxw128. Pbxn 110 is a plastic bonded explosive pbx with relatively high binder content that contains 88wt% hmx and 12wt% htpbbased binder. Pbxw17 is the rdx analogue of pbxn9, which contains hmx and is thus more expensive. For example, pbxn110, composed of 88% hmx and 12% polymeric. An insensitive high explosive made with plastic bonding techniques, used in a wide range of u. Mechanical behavior of polymers pbxw 128 and pbxn 110. 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. Hmx compositions with teflonbased binders were developed in 1960s and 1970s for gun. Figure 1 for steel impactors upon pbxn110 explosive e. Plastic bonded explosive pbx compositions utilizing cl20 as the oxidizer, and. 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. Insensitive munitions technology for solid rockets chapter 9 of the book. Mil mildtl82901a explosive, plasticbonded, cast pbxn 110 superseding mile82901 standard by military specifications and standards. The composition of the pure htpb binder analog will be discussed later in this section.
Comparisons made with predictions for octol 7525 and pbxn 110. Mildtl82874 explosive, plasticbonded, pressed, pbxn7. May begin a vigorous reaction that culminates in a detonation if mixed with reducing agents, including hydrides, sulfides and nitrides. 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. Nortel meridian, avaya cs, ipoffice, bcm, norstar, callpilot, meridian mail, and other pbx equipment technical recipes, howto guides, and information for. This website uses cookies we use cookies to personalise content and ads, to provide social media features and to analyse our traffic. Enhanced performance from insensitive explosives ronald brown, john gamble, dave amondson, ronald williams, paul murch, and joshua lusk. Other experimentally determined equivalent weights could result in slightly different weight percent values for these component materials. 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. Pbxw17 has requirements for bulkdensity and flow characteristics. Certain of these systems incorporate wave control methodologies that require some form of reactive flow representation to achieve accurate. As a result, pbxn9 has been considered as an interim insensitive high explosive for conventional munitions systems. 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 pbxn109, composed of 64% rdx.
A manual of instruction for the operation of different types of pbx and pabx. The nominal composition of pbxn111 was derived using the values of the sample calculations 6. Mechanical properties of plasticbonded explosive binder. The polymer bonded explosive pbxn109 has a composition of 65%. Pbxn111 composition is similar to some propellantsl. 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. 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. Interest in using new explosives to reduce the sensitivity. Pbxn 110 warhead results pbxw11 density gcc results 1. Tnt equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion.
Cyclotetramethylene tetranitramine, wet with 10% water is a high explosive. High performance polymerbonded explosive containing. This paper explores the characteristics of the aforementioned polymeric materials at di erent strain rates and temperatures. Isolate spill or leak area immediately for at least 500 meters mile in all directions. May explode in the presence of a base such as sodium hydroxide or potassium hydroxide even in the presence of water. Mildtl82901 explosive, plasticbonded, cast pbxn 110 this specification covers the requirements for two types of cast pbxn 110 plasticbonded. A polymerbonded explosive, also called pbx or plasticbonded explosive, is an.
Hygroscopic properties of pbxn unt digital library. The shaped charge configuration employed in the numerical analyses has a trumpet copper liner and aluminum casing filled with pbxn 110 explosive charge. Stressstrain response of both polymeric materials under uniaxial compression is found to. The composition of the polymeric samples, specific gravity, and reported glass transition temperature are summarized in table 1. The shock and detonation properties of the explosive pbxn103 have been simulated with the use of the cth hydrocode. 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 nitramine containing explosives utilized to achieve target defeat. Bulk explosives products for the defense, aerospace. This specification covers two types of pbxn 110 cast plasticbonded explosive see 6. Pbxw17 is designed as a lowcost replacement for pbxn9. Consider initial evacuation for 800 meters 12 mile in all directions.
119 1210 1309 871 1484 802 413 318 485 1229 298 386 961 821 1191 1214 1274 1504 67 281 1385 716 617 328 861 1111 1314 611