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Project_phase_I_sameer_luthra

Project_phase_I_sameer_luthra - EAS 6939 Aerospace...

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Unformatted text preview: EAS 6939 Aerospace Structural Composites Page 1 EAS 6939 Aerospace Structural Composites Project Report for Project Phase-I Submitted By: Sameer Luthra Course Advisor Dr. Raphael T. Haftka EAS 6939 Aerospace Structural Composites Page 2 Table of Contents Inputs____________________________________________________________________3 Steps Followed and Formulas Used____________________________________________4 Part 1(a): Using 1 Pair of orientation angles േθ ____________________________________8 Answer Report_______________________________________________________________ 11 Excel Sheet_________________________________________________________________ 12 Part 1(b): Using 2 Pairs of orientation angles േθ ଵ , േθ ଶ _____________________________14 Answer Report______________________________________________________________ 16 Excel Sheet_________________________________________________________________ 17 Final Result of Part 1(After Rounding up the Thickness)_________________________20 Excel Sheet_________________________________________________________________ 20 Part 2: Minimizing the Poisson’s ratio_________________________________________23 Answer Report_______________________________________________________________ 25 Excel Sheet__________________________________________________________________ 26 Part 3(a): Using n ଵ , n ଶ , n ଷ as continuous variables__________________________________28 Answer Report_______________________________________________________________ 31 Excel Sheet__________________________________________________________________ 33 Part 3(b): Using n ଵ , n ଶ , n ଷ as integers____________________________________________37 Answer Report_______________________________________________________________ 38 Excel Sheet__________________________________________________________________ 40 EAS 6939 Aerospace Structural Composites Page 3 Inputs A Cylindrical Pressure vessel of ࡾࢇࢊ࢏࢛࢙ ൌ ૛࢓ is to be designed for ࡼ࢘ࢋ࢙࢙࢛࢘ࢋ ൌ ૚ ࡹࡼࢇ...
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Project_phase_I_sameer_luthra - EAS 6939 Aerospace...

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