x21 R
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
A helicopter rotor uses a D-spar as shown below. Calculate the maximum
allowable torque, Tmax, that can be applied and the twist angle at this torque, αmax,
if the material is aluminum (σy = 30 ksi is the yield stress in shear, E = 107 psi, ν =
0.3). Use R = 4 in, t1 = 0.1 in, t2 = 0.05 in, and has length L = 10 ft.
allowable torque, Tmax, that can be applied and the twist angle at this torque, αmax,
if the material is aluminum (σy = 30 ksi is the yield stress in shear, E = 107 psi, ν =
0.3). Use R = 4 in, t1 = 0.1 in, t2 = 0.05 in, and has length L = 10 ft.
Transcribed Image Text:x21
R
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