Download citation deflagration behavior of pbxn109 and composition b at high pressures and temperatures we report deflagration rate measurements on pbxn 109 rdwavhtpb and composition. Pbxs are normally used for explosive materials that are not easily melted into a casting, or are otherwise difficult to form. View notes nutrition 109 notes 3 from ntr 109 at suny buffalo state college. Characteristics of cast pbx with aluminium pyrobin. Cis 110 composition and communication i composition and communication i is the introductory course in a twocourse sequence designed to engage students in composing and communicating ideas using speech, writing, and visuals. This paper will compare and contrast detonation in ideal and in highly nonideal explosives. Anice thigpen, a career biochemist, fell in love with opera and set out to compose a new opera about the biblical story of lots wife. Nextnotes is a national program designed to nurture the next generation of creative voices in music composition in any genre. Navy is performing benchmark tests for the slow cookoff of pbxn 109 in a sealed tube. Delivering science and technology to protect our nation and promote world stability. Mildtl82886 explosive, plasticbonded, cast pbxn109. Mechanical behavior of pbxw128 and pbxn110 under uniaxial and multiaxial compression at di erent strain rates and temperatures ozgen. The ton of tnt is a unit of energy defined by that convention to be 4.
If you are older than 60 years, the new guideline is to treat for a. Booster explosives are compounds or formulations such as composition ch6 or pbxn 7 that are used to transmit and enhance the detonation reaction of the primary explosive in. Shock sensitivity of pbxn109 when containing different. Deflagration behavior of pbxn109 and composition b at high. Some invaluable things i took from the process of writing composition 1 include organizational structure, grammar, and transitions between paragraphs. You may have to rewrite your information to reflect. 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. A polymerbonded explosive, also called pbx or plasticbonded explosive, is an explosive. The goal was to discover the threshold velocity for the initiation of the explosive. The al particle size examined was 20 microns and 150 nanometers in a pressed pbxn 109 analog composition. Pdf preparation and characterization of pbxn109eb as a new.
Pbxn 110, type ii is the preferred composition for general use. Effect of metal particle size on blast performance of rdxbased explosives jeffery j. Pbxn 101 was castable, but it was sensitive to shock, impact, and heat. Bc109 series low power bipolar transistors page 3 080406 v1. Equivalent weight factors for four plastic bonded explosives. This shall consist of a sample from the top and a sample from the bottom of the. Composition a is used by the military in land mines and 2. Cds definitions csi divisions current masterformat divisions contract days by the numbers how to memorize. Youll see stepbystep videos, technique and project animation, bonus cutting diagrams, and a lot more. General purpose bombs are used to defeat nonhard, hardened and deeply buried targets, bunkers, aircraft shelters, reinforced concrete structures and various armored targets. In aluminized composites such as pbxn 109, the binder, rdx and aluminum phases have been studied separately. 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.
Mil mildtl82901a explosive, plasticbonded, cast pbxn 110 superseding mile82901 standard by military specifications and standards, 052002. In our scenario, the phone of the calling party shows forbidden when the call is made, while the phone of the called party will never ring. The blu111b also is the warhead of the a1 version of the joint standoff weapon. Ale3d simulations are presented for the thermal explosion of pbxn 109 rdx, ai, htpb, doa in support of an effort by the u. We report deflagration rate measurements on pbxn 109 rdwavhtpb and composition b rxdttnthrvax at pressures from 1,500100,000 psi 10700 mpa. High performance polymerbonded explosive containing polynimmo for metal accelerating applications ron hollands and virgil fung. Tnt equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion. Impact of reach, itar and other regulations on energetic. Mechanical behavior of pbxw128 and pbxn110 under uniaxial. Shock sensitivity of pbxn109 when containing different rdx fills without and with aging harold w.
Environmental impact must consider both the immediate and long term effects, as well as the sources, pathways, and receptors. In this scenario, we are going to show you how to use the 3cx server activity log to identify why a call to another extension is failing. The castable pbx main charges of the underwater weapons were having a few characteristics of the propellants used in the rocket motors. The convention intends to compare the destructiveness of an event with. In 2003, liu and ellis performed taylor tests on pbx 9501 up to speeds of 115 ms, capturing impact images using highspeed photography 2.
Stud on the initiation capacities of two booster pellets 263 in contact with the steel witness plate is directly initiated by the booster pellet. Pdf a new formulation of plastic bonded explosive pbx using energetic. Sandusky naval surface warfare center, indian head division indian head, md 206405035 approved for public release. Deflagration behavior of pbxn109 and composition b at. These are analysed to provide an understanding of the throughlife impact of choosing one composition over another. Effect of metal particle size on blast performance of rdx. Built up with assorted componentry, the bombs can also be employed as joint direct attack munitions, gbu1012 laser guided bombs, and blu 109 penetrator. This material was offered to adi for use in future pbxn 109 work and a 15 kg sample was provided for evaluation. The polymer bonded explosive pbxn109 has a composition of 65% rdx, 21% aluminum, and 14% htpb binder plasticized with doa. We draw upon separatelypublished data on the thermal explosion violence with these materials to compare the material properties with the observed violence.
Thermal degradation of pbxn109 during slow cookoff. Pbxn109 loaded bombs satisfied all of the navy im requirements except sympathetic detonation in the stowage configuration. Sensitive evolution of insensitive munitions unbiased. We draw upon separately published data on the thermal explosion violence with these materials to compare the material properties with the observed violence.
Deflagration behavior of pbxn109 and composition b at high pressures and temperatures. Pbxn109 is the explosive fill for a number of munitions including the penguin asm. These composition notebooks from maruman are thin, sturdy, and perfect for coordinating different subjects. Typical equivalent analyses of binder components used to establish nominal composition are as follows. High performance polymerbonded explosive containing. Results are available for the first two compositions and are in progress for the composition. Properties of explosives and explosive composition. The focus of that work was on the explosive pbxn 109.
The aim was to build a warhead with enhanced blast and enhanced fragmentation, and they carried out a series of tests see photo with explosives from a number of different suppliers. The peak pressure generated by pbxw126 is found to be 1. The polymer bonded explosive, pbxn 109, is manufactured by australian defence industries limited adi for use as the explosive fill in the penguin antiship missile warhead in support of project. When jassm joint airtosurface standoff missile a weapon under joint development by the air force and navy, goes into production, its warhead will contain a new explosive formulation developed at the air force research laboratory munitions directorate, ordnance division, energetic materials branch. Ideal explosives, represented here by a tatb binder system, have relatively flat.
Evaluation of australian rdx in pbxn109 semantic scholar. Application of the alloy is useful in the chemical, pulp and paper, aerospace and heat treating industries to name a few. Comparing to regular pbxn 109, the pbxn 109 like composition containing fox7. Description the 50pair mount with cover is sold as an assembly and is typically used in small crossconnect installations where security andor dust protection is required. Mesoscopic investigations of the deformation and initiation mechanisms of a hmxbased pressed composition. Navy is performing benchmark tests for the slow cookoff of pbxn109 in a sealed tube. The depth of the dent represents the initiation capacity of the booster pellet. The aluminium powder in the pbxn109 formulation was described as ata x81.
Tests were performed using a small sealed chamber and an openended shock tube. Pbxn 109 and composition b were chosen as typical and broadreaching energetics on which to base this study. Ale3d simulations are presented for the thermal explosion of pbxn109 rdx, ai, htpb, doa in support of an effort by the u. To estimate the response of pbxn109 to cookoff and shock aggression tests were conducted in laboratoryscale equipment, viz. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Pbxn109 non rsrdx pbxn109 rsrdx pbxih7 pax21 pbxn110 calculated threshold velocities slightly below experimental results but very good estimation as it is only based on lsgt shock sensitivity benefit of pbxn109 with reduced sensitivity rdx other conventional rdx. The result of this testing showed pbxn109 to react relatively mildly during cookoff and to be moderately sensitive to shock, again, in keeping with published data. Service temperatures for alloy 600 can be from cryogenic to 2000f. Evaluation of an alternative grade of cxm7 for use in. Explosive, plasticbonded, cast pbxn 109 to find similar documents by federal supply class code. The more thermallysensitive rdx apparently dominates igni tion kinetics. Performance modelling 2 pbxn 110 octol 7525 b u t y l n e n a g a p a.
The mechanisms of initiation and propagation of a hot spot in nonideal explosives with aluminum additives are poorly understood due to greater complexity introduced by the different thermal and mechanical behavior of the components. Table of contents this symbol lets you know theres more information here at. Mildtl82901 explosive, plasticbonded, cast pbxn 110 this specification covers the requirements for two types of cast pbxn 110 plasticbonded explosive \see 6. We present available data for these properties for two hmxbased formulationslx04 and pbx9501, and two rdxbased formulations composition b and pbxn 109. Pbxn 109 loaded bombs satisfied all of the navy im requirements except sympathetic detonation in the stowage configuration. Three explosives were tested and the results presented. Composition a3 is a waxcoated, granular explosive, consisting of. Announcements, composition, contests noteflight is the vehicle for a brandnew opera robin mcclellan may 29, 2017.
The simulated arrival times were compared with the measured data at the fibreoptic array positions. We do this through managing and continually improving our quality systems. Pbxn106, rdx 75%, polyethylene glycolbdnpaf binder, naval shells. Noreliablescientificevidencetosupportuse sideeffects. En 1008822005 elements not listed in this table shall not be intentionally added to the steel without the agreement of the purchaser except for finishing the cast.
Troubleshooting disabled extensions using the 3cx server. Mildtl82901 explosive, plasticbonded, cast pbxn110 this specification covers the requirements for two types of cast pbxn110 plasticbonded explosive \see 6. In the new formulation named pbxn109eb, inert htpb. The properties determined across a wide spectrum of tests form the. These differences may reflect inconsistencies between the pbxn 109 samples in terms of composition, e. For materials with a low pressure dependence of highpressure deflagration, such as pbxn 109, the reaction rate is accelerated at a relatively low rate. Samples of pbxn 109 were exposed to predetermined doses of uv.
Pbxn 109 energetic material composition wt % unclassified unclassified torq nseal plug torq nseal anchor. Taylor impact tests and simulations of plasticbonded explosives. Composition ii assignment instructions argument essay guidelines utilizing information from your research report, construct a reasonable argument of 8 to 10 pages in length, including the works cited, doublespaced. I have summarized them pretty easily to zip through them. The challenge of nonideal detonation hal archive ouverte.
Biology 108 at university of alberta online flashcards. Study university of alberta biology 108 flashcards and notes. Pbxn 110 is a highenergy explosive intended for use. Blu111b mk 82 casing filled with pbxn 109 instead of composition h6. Students in grades 912 are invited to apply with a single composition in any genre or. The complete electronic version of this manual, as well as the two notes audio engineering soft ware and hardware products, are subject to updates. An insensitive high explosive made with plastic bonding techniques, used in a wide range of u. Innovations developed by nasa and its industry partners in a wide array of fields. Modelling of warhead response to projectile impact with. Study on the initiation capacities of two booster pellets. The polymer bonded explosive pbxn 109 has a composition of 65% rdx, 21% aluminum, and 14% htpb binder plasticized with doa. Composition b, pbxn 9, or pbxn 109, that are used as the final charge in explosive. The procurement of the blu 109 is to improve the war reserve posture. Experimental support of a slow cookoff model validation effort.
While it was not perfect, i believe that i learned so much from the drafting process of composition 1. Links schiff hardin pro practice lectures the law and business of architecture posts. Manser this paper was prepared for submittal to the life cycles of energetic materials meeting in del mar, ca december 1116,1994. Shortly after the cna report on insensitive munitions was issued, the navy bomb. This was done with the llnl high pressure strand burner, in which embedded wires are used to record the timeofarrival of the burn front in the cylindrical sample as a function of pressure. Navy and department of energy doe to validate computational models. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Quality assurance is dedicated to supporting our warfighters by assuring that mcaap provides them with the highest quality ammunition and ammunition related services.
Pbxn109 is significantly less reactive than rdx or composition b, but still more reactive than the hmx formulations or tnt. A new imi systems less sensitive brisant explosive composition. Miller naval aviation science and technology office, research and technology department, code 4t4330d. Pbxn 109 gap test studies for different rdx fills without and with aging. We report deflagration rate measurements on pbxn109 rdwavhtpb and composition b rxdttnthrvax at pressures from 1,500100,000 psi 10700 mpa. Hmx compositions with teflonbased binders were developed in 1960s and 1970s. Comparisons made with predictions for octol 7525 and pbxn 110. Pbxn 101 was castable, but it was sensitive to shock, impact and heat.
The composition chosen to support this study is the pbxn 109, well known for its low shock sensitivity. Ebad has designed, developed and produced a wide range of explosive. Finally, the shock sensitivity curve that summarizes the critical combination of peak shock pressure p and the derived parameter p 2 t was described for the pbxn. We are proud of our dedicated team and their commitment to our great military. Both mk46 and mk48 torpedo warheads had pbxn 103 composition. Alloy 600 is a nickelchromiumiron, solid solution strengthened alloy used for applications that require corrosion and high temperature resistance. Noteflight is proud to partner with the american composers forum to support their nextnotes high school composition awards. Pbxn 109 has a detonation velocity of about 7600 ms. The procurement is for expenditure replacement and to maintain war reserve. Pbxn 109 is a less sensitive explosive filler when compared to h6. Meeting all but the sympathetic detonation requirement was a substantial improvement over the tntbased explosive use in these weapons.1032 852 912 621 1381 653 281 279 240 75 1528 1214 402 1002 1159 1030 1187 1156 1591 1111 450 1080 922 1520 884 687 1212 1252 1493 1046 560 215 973 1366 825 818 1257