Stressstrain response of both polymeric materials under uniaxial compression is found to be dependent on the strain rate. Pbxs are normally used for explosive materials that are not easily melted into a casting, or are otherwise. Mechanical behavior of polymers pbxw 128 and pbxn 110. A polymerbonded explosive, also called pbx or plasticbonded explosive, is an. Thermal decomposition and ignition of pbxn110 plastic. Mildtl82874 explosive, plasticbonded, pressed, pbxn7. Pbxn 110 warhead results pbxw11 density gcc results 1. Composition a3 is a waxcoated, granular explosive, consisting of. These simulations require an unreactive hugoniot relationship. Pbxn 110 is a highenergy explosive intended for use. Comparisons made with predictions for octol 7525 and pbxn 110. Pressing and pelletizing explosives in custom configurations.
Composition a is used by the military in land mines and 2. However, performing the test for every new composition is certainly tedious. Used in a wide range of compositions, rdx represents the best solution for both performance and cost. The compressive stressstrain response of pbxw128 and pbxn110 was found to be dependent on strain rate and temperature. Eurenco produces rdx by the woolwich or bachmann process. Characterization of lx14 fem and pbxn9 fem high energy. Hmxbased compositions available according to nato standard or customertailored specifications.
Mechanical behavior of pbxw128 and pbxn110 under uniaxial. The introduction of castable plastic bonded explosives. Enhanced performance from insensitive explosives ronald brown, john gamble, dave amondson, ronald williams, paul murch, and joshua lusk. Hygroscopic properties of pbxn unt digital library. The shock and detonation properties of the explosive pbxn103 have been simulated with the use of the cth hydrocode. Htpb, doa dioctyladipate, and ipdi isophorone diisocyanate. A polymerbonded explosive, also called pbx or plasticbonded explosive, is an explosive. The data covers homogeneous, heterogeneous, composite, inorganic and binary explosives and allows. The nominal composition of pbxn 110, type i and type ii, was derived using the values of the sample calculations. The ignition kinetics and deflagration rates of pbxn9 were measured using specially designed instruments at llnl and compared with previous work on similar hmx based materials.
A library of prompt detonation reaction zone data technical. Cyclotetramethylene tetranitramine, wet with 10% water is a high explosive. Pbxn110, type ii is the preferred composition for general use. For example, pbxn110, composed of 88% hmx and 12% polymeric. Tnt equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion. Thermal decomposition and ignition of pbxn110 plasticbonded explosive. Properties of selected high explosives robert weinheimer july 2002 abstract this paper was presented at the 27th international pyrotechnics seminar, 16 21 july 2000 in grand junction, co. Available in all standard grain sizes, rdx is used in a variety of military applications. Enhanced performance from insensitive explosives ronald brown, john gamble, dave amondson, ronald williams, paul murch. The composition of the pure htpb binder analog will be discussed later in this section. 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. This specification covers two types of pbxn110 cast plasticbonded explosive see 6.
Numerical analyses have been performed to investigate the influence of shaped charge asymmetries in the jet characteristics. Both mk46 and mk48 torpedo warheads had pbxn103 composition. Plastic bonded explosive pbx compositions utilizing cl20 as the oxidizer, and. The compressive constitutive strength behavior of pbxn110 and its htpb based binder system was measured as a function of temperature. Hmx compositions with teflonbased binders were developed in 1960s and 1970s for gun. Results of these experiments indicate that pbxn9 behaves. Pbxn111 composition is similar to some propellantsl. Composition bulk density pressed density friction coeff granulation naval impact. Compressive properties of pbxn5 and pbxw11 before and. Pbxn109 65% rdx, 21% al, 7 wt% htpb hydroxyterminated polybutadiene, 7 wt% doa dioctyl adipate.
Pbxn 110, type ii is the preferred composition for general use. Other experimentally determined equivalent weights could result in slightly different weight percent values for these component materials. Mildtl82901 explosive, plasticbonded, cast pbxn110 this specification covers the requirements for two types of cast pbxn110 plasticbonded. The htpb binder in pbxn109 is highly plasticized and is fairly stable chemically. The ton of tnt is a unit of energy defined by that convention to be 4. Insensitive high explosives related articles citizendium. Bulk explosives products for the defense, aerospace. The compressive stressstrain response of pbxw128 and pbxn 110 was found to be dependent on strain rate and temperature. The nominal composition of pbxn111 was derived using the values of the sample calculations 6. One reactive rate law of interest is the leetarver ignition and growth model. Bulk explosives products for the defense, aerospace, mining. Mildtl82901 explosive, plasticbonded, cast pbxn 110 this specification covers the requirements for two types of cast pbxn 110 plasticbonded.
It is estimated that approximately 45 million lines are. 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 explosive \. In other words, for each gram of tnt exploded, 4184 joules or one large. Pbxs are normally used for explosive materials that are not easily melted into a casting, or are otherwise difficult to form. Rdxbased compositions available according to nato standard or customertailored specifications. Pbxn101 was castable, but it was sensitive to shock, impact, and heat. The material is composed of 95% hmx and 5% viton binder. 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 novel method for assessment of the velocity of detonation for primary explosives. Ct1 and ct2 both had 43 cm long slapper detonator systems imbedded in the cast pbxn110 explosive, but manufacturing a charge for a similar 9501 test was notmore. This paper explores the characteristics of the aforementioned polymeric materials at di erent strain rates and temperatures. Pbxn110 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.
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. Compressive properties of pbxn110 and its htpb binder as a. The nominal composition of pbxn110, type i and type ii, was derived using. Qpl82901 explosive, plasticbonded, cast, pbxn 110 qpl82908 explosive material, coated, cxm8 ssen12773 footwear test methods for outsoles needle tear strength. Pbxn110 is a highenergy explosive intended for use. These much slower heating rates for pbxn9 were chosen because the rapid decomposition of hmx makes faster heating rate data e. Pbxn110 warhead results pbxw11 density gcc results 1. Ct1 and ct2 both had 43 cm long slapper detonator systems imbedded in the cast pbxn 110 explosive, but manufacturing a charge for a similar 9501 test was notmore instead, a single cylinder of 9501, 19. The influence of asymmetries in shaped charge performance. As expected, the strength of pbxn110 was found to exhibit strong. Stressstrain response of both polymeric materials under uniaxial compression is found to. The response of the hmxbased material pbxn9 to thermal. There was no great desire to fund programs to utilize propellant technology to develop less sensitive explosives because the sensitivity of munitions to extremes of heat, shock and impact was known but not recognized as a problem. Mechanical behavior of polymers pbxw 128 and pbxn 110 under.
Pbxn 110 is a plastic bonded explosive pbx with relatively high binder content that contains 88wt% hmx and 12wt% htpbbased binder. High nitramine containing explosives utilized to achieve target defeat. Nortel meridian, avaya cs, ipoffice, bcm, norstar, callpilot, meridian mail, and other pbx equipment technical recipes, howto guides, and information for. Qpl82901 explosive, plasticbonded, cast, pbxn110 qpl82908 explosive material, coated, cxm8 ssen12773 footwear test methods for outsoles needle tear strength. The polymer bonded explosive pbxn109 has a composition of 65%. The sensitive pbxn101 formulation mentioned previously was an example of this focus on energy. The fy 1986 procurement of navy blu110b 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. The polymer pbxn 110 is used as the matrix for the particlereinforced polymer composite pbxw128. This specification covers two types of pbxn 110 cast plasticbonded explosive see 6.
The shaped charge configuration used for the hydrocode analyses has a trumpet copper liner. 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. Consider initial evacuation for 800 meters 12 mile in all directions. High performance polymerbonded explosive containing. The polymer pbxn110 is used as the matrix for the particlereinforced polymer composite pbxw128.
High performance polymerbonded explosive containing polynimmo for metal accelerating applications. 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. Melt pour into customer specified shapes or devices. For example, pbxn110, 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. Apr 24, 2008 the ignition kinetics and deflagration rates of pbxn 9 were measured using specially designed instruments at llnl and compared with previous work on similar hmx based materials. Cxm7, type i and ii pbxn 109 ws 26702 1 mile82886 rdx. Pbxn110 is a plastic bonded explosive pbx with relatively high binder content that contains 88wt% hmx and 12wt% htpbbased binder. 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. Aes processes bulk explosives to meet the exacting requirements of commercial and military applications. Pbxn9 ignition kinetics and deflagration rates unt digital. Thermal decomposition and ignition of pbxn110 plasticbonded. As expected, the strength of pbxn 110 was found to exhibit strong.
Thermal decomposition and ignition of pbxn 110 plasticbonded explosive mine composites with tnt, 12th international detonation symposium, san diego, california, usa, august 1116, 2002. There are several pbxn explosives, the 5 suffix is an arbitrary identifier which is assigned sequentially. May begin a vigorous reaction that culminates in a detonation if mixed with reducing agents, including hydrides, sulfides and nitrides. Properties of selected high explosives robert weinheimer july 2002 abstract this paper was presented at the 27th international pyrotechnics seminar, 16. Pbxn9 ignition kinetics and deflagration rates unt. See all formats and editions hide other formats and editions. Ep1417161a2 high performance plastic bonded explosive. Meltcast compositions rdxtnt, comp b, pressed compositions rdxwax, rdxbinder, comp a3, comp a4, comp a5, hexal, pbxn7, premix of plasticized compositions for cast pbx cxm7. Ignition kinetics were measured based on the one dimensional timetoexplosion combined with ale3d modeling. 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. Communication 110 glendale community college paperback january 1, 20 by wood adler, proctor, west, turner author 5. A pure analog of the pbxn110 binder system was tested for comparison to the strain rate and temperature dependence of the composite pbxn110. Compressive properties of pbxn5 and pbxw11 before and after.
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. 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 shaped charge configuration employed in the numerical analyses has a trumpet copper liner and aluminum casing filled with pbxn 110 explosive charge. Isolate spill or leak area immediately for at least 500 meters mile in all directions. In addition to providing bulk explosives, aes provides value added explosive processing services including. The tnt in composition b may be considered an energetic and lowmelting binder. Results of these experiments indicate that pbxn 9 behaves much like other hmx based materials i. Typical equivalent analyses of binder components used to establish nominal composition are as follows. Mildtl82901 explosive, plasticbonded, cast pbxn110 this specification covers the requirements for two types of cast pbxn110 plasticbonded explosive \. An insensitive high explosive made with plastic bonding techniques, used in a wide range of u. The castable pbx main charges of the underwater weapons were having a few characteristics of the propellants used in the rocket motors.
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