21. Strain measurement Flashcards
1
Q
How is strain measured?
A
2
Q
What are the strian transformation equations (for strian gauges)? How can it be related to Mohr’s circle?
A
3
Q
What are principle strains? How do you measure pure shear stress from torsion, using principle strains and strain gauges?
A
4
Q
What gauge do we use to measure the complete overview of the local strain state of a material?
A
Strain guage rosettes. Two most common are the 0/45/90 degree or 0/60/120 degree gauges.
5
Q
How do you measure normal and shear strains from a 0/45/90 degree strain gauge rosette?
A
6
Q
How do you measure normal and shear strains from a 0/60/120 degree strain gauge rosette?
A
