System Operating Procedure
Chapter. 7 Principle of strain gage and application
Guide for preliminary report
Either Korean or English will be O.K.
Each answer should be written within 1 page, respectively.
1.Explain concepts of ‘Stress’ and ‘Strain’ in engineering.
(Formula, Measurement, etc.)
2.Explain the reason of using ‘a bridge circuit’ for the
measurement of strain. (hint : consider the error of the test
equipment and accuracy)
3.Derive the equations used in Experiment: cantilever beam
referring a text of solid mechanics.
1313
W 3E1 Eq’ (1)
xOhP
x 2E1 Eq- (2)