Low-density phenolic nylon nosecap, Scout Reentry Heating Program, Reentry E Final report
Low-density phenolic nylon charring ablator nose cones for Scout reentry project
REENTRY VEHICLE↗
SEARCH · Engineering Papers
Results for “nylons”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Permeability measurements of two low-density phenolic-nylon chars Final report
Permeability measurements of low-density phenolic-nylon chars in gaseous nitrogen and helium
PHENOL RESIN↗
An investigation of the mechanisms of heat transfer in low-density phenolic-nylon chars
Conductive heat transfer mechanisms in low density phenolic-nylon chars
Pears, C. D.↗
Experimental and theoretical investigation of the ablative performance of five phenolic-nylon-based materials
Theoretical analysis of five composite ablation materials with various percentages of phenolic resin, powdered nylon, and silica
Mc Lain, A. G.↗
Morphology of cold-drawn nylon 66.
Nylon 66 spherulites morphology before and after cold drawing from X ray diffraction, light and electron microscopic examination
Crystal, R. G.↗
An investigation of some thermal and mechanical properties of a low-density phenolic-nylon ablation material Final report
Thermal and mechanical properties of phenolic nylon ablation materials
Pears, C. D.↗
A study of the performance of low-density phenolic-nylon ablators
Ablative effectiveness of low density phenolic nylon materials
Howell, W. E.↗
Thermal cracking of phenolic-nylon pyrolysis products on passing through a heated char
Thermal cracking of phenolic-nylon pyrolysis products analyzed on passing through heated char
Sykes, G. F., Jr.↗
Surface recession of phenolic nylon in low- density arc-heated air
Surface recession of low density phenolic nylon in arc heated air using stagnation point models, noting char removal processes
Bertin, J. J.↗
Comparative performance of phenolic nylon in arc-heated streams of nitrogen, air, and nitrogen-carbon dioxide
Phenolic nylon ablative thermal effectiveness in arc heated nitrogen, air and nitrogen-carbon dioxide streams
Bertin, J. J.↗
Tension impact tests on nylon webbing structures
Longitudinal tension impact tests on nylon tape and Apollo pilot parachute riser construction, determining wave propagation effects
Lindh, K. G.↗
A study of low velocity impacts into thin sheet aluminum and nylon cloth
Simulation of secondary meteoroid flux by impact of single projectiles on thin sheet aluminum and nylon cloth to define penetration mechanics of spacecraft structures and space suit material
Flaherty, R. E.↗
Analysis of the thermal response of high density phenolic nylon on a spacecraft launched by the Pacemaker vehicle system
Ablation sensors and thermocouples used to measure thermal response of phenolic-nylon material of spacecraft launched by Pacemaker vehicle system
Witte, W. G.↗
Properties of ablation and insulation materials. Volume 3 - Thermal and mechanical properties of low-density phenolic- nylon and silicone-phenolic ablators
Mechanical and thermodynamic properties of low density ablative materials and honeycombs including silicone-phenolic resin and phenolic glass honeycombs of phenolic silicone and nylon
Pears, C. D.↗
Stagnation region heating of a phenolic-nylon ablator during return from planetary missions
The results of a stagnation-line analysis of the radiative heating of a phenolic-nylon ablator are reported. The analysis includes flowfield coupling with the ablator surface, equilibrium chemistry, multicomponent or binary diffusion and a coupled line and continuum radiation calculations. Users manual and operating instructions for the computer programs listed in the report are included.
Esch, D. D.↗
Fracture Behavior in Nylon 6 Fibers
Electron paramagnetic resonance (EPR) techniques are used to determine the number of free radicals produced during deformation leading to fracture of nylon 6 fibers. A reaction rate molecular model is proposed to explain some of the deformation and bond rupture behavior leading to fracture. High-strength polymer fibers are assumed to consist of a sandwich structure of disordered and ordered regions along the fiber axis. In the disordered or critical flaw regions, tie chains connecting the ordered or crystalline block regions are assumed to have a statistical distribution in length. These chains are, therefore, subjected to different stresses. The effective length distribution was determined by EPR. The probability of bond rupture was assumed to be controlled by reaction-rate theory with a stress-aided activation energy and behavior of various loadings determined by numerical techniques. The model is successfully correlated with experimental stress, strain, and bond rupture results for creep, constant rate loadings, cyclic stress, stress relaxation and step strain tests at room temperature.
Lloyd, B. A.↗
The effects of the conditions of char formation on the physical properties of charred phenolic-nylon
A study was made of the effects of the conditions of char formation on the physical properties of charred phenolic nylon of 0.577 gm/cu cm density. It was found that the thermal conductivity and several of the monitors correlate well with degradation conditions. The monitors included electrical resistivity, sonic velocity, porosity, lattice spacing and crystallite size.
Smyly, E. D.↗
Effects of pressure, oxygen concentration, and forced convection on flame spread rate of Plexiglas, Nylon and Teflon
Experiments were conducted in which the burning of cylindrical materials in a flowing oxidant stream was studied. Plexiglas, Nylon, and Teflon fuel specimens were oriented such that the flames spread along the surface in a direction opposed to flowing gas. Correlations of flame spread rate were obtained that were power law relations in terms of pressure, oxygen concentration, and gas velocity.
Notardonato, J. J.↗