Stress Corrosion Cracking: Mechanisms, Materials Challenges, and Engineering Solutions. [PDF]
Materials (Basel)Pinoski L, Antony Jose S, Menezes PL.
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Ultra-High-Velocity Penetration Performance of Lightweight W-Based Ceramic Alloy Rod Penetrator Against Concrete Targets. [PDF]
Materials (Basel)Yang R +6 more
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Numerical Investigation of Material Flow and Defect Formation in FRAM-6061 Al Alloy Ring Component Using CEL Simulation. [PDF]
Materials (Basel)Ji Y, Yang B.
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Textured and Hierarchically Porous Hematite Photoanode for Efficient Hydrogen Production via Photoelectrochemical Hydrazine Oxidation. [PDF]
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Transient thermal stresses in solid propellant grains
1st Annual Meeting, 1964This 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
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Thermoviscoelastic Analysis of Axisymmetric Solid Propellant Grains
Journal of Spacecraft and Rockets, 1975Theme 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
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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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Photothermoelastic analysis of bonded propellant grains
Experimental Mechanics, 1961A 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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The Design of Cylindrical Propellant Grains
Journal of Jet Propulsion, 1956T 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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Experimental evaluation of as-processed propellant grains
20th Joint Propulsion Conference, 1984Grain structural integrity evaluations are generally based upon mechanical properties data obtained from tests of specimens removed from carton samples of propellant. During the past several years, Aerojet has performed numerous sample excisions and motor dissections to verify grain structural capabilities.
P.W. Veit, L.G. Landuk, G.J. Svob
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