Results 251 to 260 of about 7,373 (314)

Experimental study of lubricating wear phenomena in Ag-Mg alloy systems. [PDF]

Sci Rep
Venkatasudhahar M, Muthukumar S, Kumar NM, Kumar PM, Al Awadh M, Rajendran P, Lee IE.   +6 more
europepmc   +1 more source

Optimal Bi₀.₈Ba₀.₂FeO₃ doping in Bi₀.₅(Na₀.₇₇K₀.₂₀Li₀.₀₃)₀.₅TiO₃ multiferroic ceramics synthesized by the solid-state combustion technique. [PDF]

Sci Rep
Thawong P, Prasertpalichat S, Suriwong T, Pinitsoontorn S, Jantaratana P, Chootin S, Sriondee M, Charoonsuk T, Vittayakorn N, Rittidech A, Bongkarn T.   +10 more
europepmc   +1 more source

Acute toxicity of TNT derivatives and hydrazine-based compounds from explosive and rocket fuel contamination to darkling beetles (<i>Tenebrio molitor</i> and <i>Opatrum sabulosum</i>). [PDF]

PeerJ
Rybalka DF, Brygadyrenko VV.
europepmc   +1 more source

Crystallization-Based Modification of Ammonium Perchlorate Heat Release. [PDF]

Cryst Growth Des
Smith-Papin N, Do C, Phister M, Giri G, Kalman J.   +4 more
europepmc   +1 more source

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Thermoviscoelastic Analysis of Axisymmetric Solid Propellant Grains

Journal of Spacecraft and Rockets, 1975
Theme T paper presents a technique developed for the analysis of stress concentration in axisymmetric viscoelastic solids with a moving inner boundary. Using White's procedure of viscoelastic analysis, the technique is then used to analyze a case-bonded grain, in which a number of axisymmetric slots are spaced at intervals along the longitudinal ...
G. SANKARAN, M. JANA
openaire   +1 more source

Transient thermal stresses in solid propellant grains

1st Annual Meeting, 1964
This paper describes how finite-difference procedures are used to solve axisymmetric thermal stress problems with the aid of an electronic digital computer. In this solution, elasticity theory is employed in a stress-function formulation that includes the effects of continuously varying temperatures in both the axial and radial directions.
A. M. MESSNER, D. R. SCHLIESSMANN
openaire   +1 more source

Photothermoelastic analysis of bonded propellant grains

Experimental Mechanics, 1961
A two-dimensional model of the transversal cross section of a bonded rocket propellant grain was subjected to uniform and steady thermal loading and, alternatively, to mechanically applied uniform radial displacements on the outer boundary. The optimization of perforation contours (attained in previous research programs by applying uniform pressure on ...
I. M. Daniel, A. J. Durelli
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84-Inch Propellant Grains.

1979
Abstract : This report documents the results obtained during casting a total of 7 84-in. SLSH cartridges with UTP-18,803A propellant (90% solids, 21% aluminum, HTPB) for AFRPL. This program is an extension of the work discussed in AFRPL-TR-77-92 and brings the total amount of UTP-18,803A produced under full-scale production conditions to over 880,000 ...
Albert J. Martel, Terry V. O'Hara
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The Design of Cylindrical Propellant Grains

Journal of Jet Propulsion, 1956
T h e m a t h e m a t i c s of t h e des ign of a cyl indr ical p r o p e l l a n t g ra in is d iscussed in genera l . Only t h e di rect r ix of t h e cyl indr ical b u r n i n g surface ( the in t e r sec t ion of t h e cyl inder w i t h a p l a n e n o r m a l t o i t s l a t e ra l surface) need be s t ud i ed .
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