000004777 001__ 4777
000004777 005__ 20141119144552.0
000004777 04107 $$aeng
000004777 046__ $$k2002-06-02
000004777 100__ $$aBanerjee, Biswajit
000004777 24500 $$aMICROMECHANICS-BASED PREDICTION OF THERMOELASTIC PROPERTIES OF HIGH ENERGY MATERIALS

000004777 24630 $$n15.$$pProceedings of the 15th ASCE Engineering Mechanics Division Conference
000004777 260__ $$bColumbia University in the City of New York
000004777 506__ $$arestricted
000004777 520__ $$2eng$$aHigh energy materials such as polymer bonded explosives are commonly used as propellants. These particulate composites contain explosive crystals suspended in a rubbery binder. However, the explosive nature of these materials limits the determination of their mechanical properties by experimental means. Therefore micromechanics-based methods for the determination of the effective thermoelastic properties of polymer bonded explosives are investigated in this research. Polymer bonded explosives are twocomponent particulate composites with high volume fractions of particles (volume fraction > 90%) and high modulus contrast (ratio of Young’s modulus of particles to binder of 5,000-10,000). Experimentally determined elastic moduli of one such material, PBX 9501, are used to validate the micromechanics methods examined in this research. The literature on micromechanics is reviewed; rigorous bounds on effective elastic properties and analytical methods for determining effective properties are investigated in the context of PBX 9501. Since detailed numerical simulations of PBXs are computationally expensive, simple numerical homogenization techniques have been sought. Two such techniques explored in this research are the Generalized Method of Cells and the Recursive Cell Method. Effective properties calculated using these methods have been compared with finite element analyses and experimental data. 

000004777 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004777 653__ $$aMicromechanics, thermoelastic properties, high energy materials, PBX 9501.

000004777 7112_ $$a15th ASCE Engineering Mechanics Division Conference$$cNew York (US)$$d2002-06-02 / 2002-06-05$$gEM2002
000004777 720__ $$aBanerjee, Biswajit$$iAdams, Daniel O.
000004777 8560_ $$ffischerc@itam.cas.cz
000004777 8564_ $$s319960$$uhttps://invenio.itam.cas.cz/record/4777/files/324.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004777 962__ $$r4594
000004777 980__ $$aPAPER