m20_ps14_fall03

m20_ps14_fall03 - b) What are the in-plane principal...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Problem M20 A 45° strain gauge rosette attached to the surface of an aluminum alloy wing skin panel measures the following strains: e a = -0.0025, e b =0.0020, e c =-0.0040 The orientation of the gauges is shown below a b c a) What are the extensional stresses in the a, b and c directions?
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: b) What are the in-plane principal stresses? The Young's modulus of the aluminum alloy is 70 GPa, the Poisson's ratio is 0.33 (note. the a, b, and c directions are numbered in the counterclockwise direction)...
View Full Document

Ask a homework question - tutors are online