Structural Design

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Aerospace Materials ¥ Comparison of specific stiffness, specific strength, and buckling parameter for a variety of aerospace metals and composites ¥ Definition of Structural Failure Ð Detrimental Yield vs Textbook Yield ¥ deformation that detrimentally affects functionality of system ¥ 0.2% Tresca yield condition (assumes system linear in first place) Ð Ultimate Failure ¥ any material rupture or loss of functionality Structural Design Principles of Space Systems Design
Material Strength & Stiffness ¥ Typical Yield & Ultimate Strengths Ð aluminum yld: 37 ksi ult: 42 ksi Ð low strength steel yld: 36 ksi ult: 58 ksi Ð high strength steel yld:102 ksi ult:116 ksi Ð titanium yld:134 ksi ult:145 ksi ¥ Stiffness versus Strength Designs Ð aluminum w: 0.10 E/w: 100 s u /w: 420 Ð Low s u steel w: 0.28 E/w: 102 s u /w: 204 Ð high s u steel w: 0.29 E/w: 98 s u /w: 390 Ð titanium w: 0.16 E/w: 109 s u /w: 906 Conclusion: for aerospace structures - titanium and aluminum Structural Design Principles of Space Systems Design
Page 1 and 2: Structural Design ¥ Loads and Load
Page 3 and 4: Load Sources ¥ Where do these load
Page 5 and 6: Launch Vehicle Failures ¥ LV failu
Page 7 and 8: Planetary Vehicle Loads ¥ Vibratio
Page 9 and 10: Factors & Margins of Safety ¥ Limi
Page 11: Critical Structure ¥ Critical Item

Structural Design

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