The measured strains for an equiangular rosette, attached to a stressed aluminum alloy member,are E0 = +400 micro m/m,E60 = +400 micro m/m, and E 120 = -600 micro m/m. What are the principal stresses and in which directions do they act? Given E =70 GPa, and v = 0.25

Structural Analysis
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Chapter2: Loads On Structures
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11-58. The measured strains for an equiangular rosette, attached to a stressed aluminum alloy member,are E0 = +400 micro m/m,E60 = +400 micro m/m, and E 120 = -600 micro m/m. What are the principal stresses and in which directions do they act?
Given E =70 GPa, and v = 0.25.

 

11-58. The measured strains for an equiangular rosette, attached to a stressed
aluminum alloy member, are ɛ = +400 µm/m, Ew = +400 µm/m, and ɛ120 =
-600 µm/m. What are the principal stresses and in which directions do they act?
E = 70 GPa, and v = 0.25.
Transcribed Image Text:11-58. The measured strains for an equiangular rosette, attached to a stressed aluminum alloy member, are ɛ = +400 µm/m, Ew = +400 µm/m, and ɛ120 = -600 µm/m. What are the principal stresses and in which directions do they act? E = 70 GPa, and v = 0.25.
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