he strain gage is placed on the surface of the steel boiler as shown. if it is 0.5 in. long, determine the pressure in the boiler when the gage elongates 0.2(10-3) in. the boiler has a thickness of 0.5 in. and inner diameter of 60 in. also, determine the maximum x, y in-plane shear strain in the material. esteel .E_{\mathrm{st}}=29\left(10^{3}\right) \mathrm{ksi}, \nu_{\mathrm{st}}=0.3.Est=29(103)ksi,νst=0.3.