The surface of a helicopter blade is subjected to plane stress with normal stresses σx and σy and shear stress τxy, as shown in Figure Q1(b). From the analysis, it shows that at counterclockwise angle Ɵ = 32° from the x axis, the normal stress is 37 MPa (tension), and at counterclockwise angle Ɵ = 48°, the normal stress is 12 MPa (compression).
The surface of a helicopter blade is subjected to plane stress with normal stresses σx and σy and shear stress τxy, as shown in Figure Q1(b). From the analysis, it shows that at counterclockwise angle Ɵ = 32° from the x axis, the normal stress is 37 MPa (tension), and at counterclockwise angle Ɵ = 48°, the normal stress is 12 MPa (compression).
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
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The surface of a helicopter blade is subjected to plane stress with normal stresses σx and σy and shear stress τxy, as shown in Figure Q1(b). From the analysis, it shows that at counterclockwise angle Ɵ = 32° from the x axis, the normal stress is 37 MPa (tension), and at counterclockwise angle Ɵ = 48°, the normal stress is 12 MPa (compression).
By using Mohr’s circle, determine;
a) the principal stresses and sketch the orientation of the σ1 and σ2.
b) the maximum in-plane shear stress and the associated normal stress and sketch the orientation.
c) Determine the absolute maximum shear stress, τabs max.
Transcribed Image Text:0; = 110 MPa
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