88 research outputs found
The Analysis of Strains Indicated by Multiple-strand Resistance-type Wire Strain Gages Used as Rosettes
Evaluations of Space Shielding
A general method of evaluating the efficiency of space vehicle shielding is developed and used to compare various active and passive systems for protection against ionizing radiation. Available permanent magnets are found useless for active shielding, and combined active-passive systems in general are determined to be inefficient. On the other hand, evaluations show that active electrostatic shielding may have possibilities for weight savings if electrical conditions (presently unknown) are favorable therefor in space. Further, a positive potential improvement is calculated for an active shielding system which utilizes superconducting Nb3Sn to provide a confined magnetic flux to deflect incident charged particles; this potential points toward substantial reductions in shield weight for the protection of large vehicles from highly energetic particles. Recommendations are made for further research, particularly for flight experiments to measure directionality of solar flare protons
Effect of Variation in Diameter and Pitch of Rivets on Compressive Strength of Panels with Z-section Stiffeners: Panels of Various Stiffener Spacings that Fail by Local Buckling
Effect of Variation in Diameter and Pitch of Rivets on Compressive Strength of Panels with Z-section Stiffeners : Panels of Various Lengths with Close Stiffener Spacing
Design Charts for Flat Compression Panels Having Longitudinal Extruded Y-section Stiffeners and Comparison with Panels Having Formed Z-section Stiffeners
Direct-reading Design Charts for 24S-T3 Aluminum-alloy Flat Compression Panels Having Longitudinal Formed Hat-section Stiffeners and Comparisons with Panels Having Z-section Stiffeners
Compressive Strength of 24S-T Aluminum-alloy Flat Panels with Longitudinal Formed Hat-section Stiffeners Having Four Ratios of Stiffener Thickness to Skin Thickness
- …