Derive the expression of normal strain of a loaded member 2.

1.Derive the expression of normal strain of a loaded member

2.State and explain the desirable properties of a gauging system

ε yyε xy D C Bε xys= r2 ε xx ε xx εθε xy θ E Oε xyε yy Fig. 1.2 Strain on an element.Equilibrium of strains in the direction of ε θ requiresε θ =( a+b ) OA + ( c+ d ) AB...