Section: Solid Mechanics | Type: NAT | Marks: 2
A thin steel plate is loaded in the x-y plane as shown in the figure. Take the Poisson’s ratio of steel to be 0.3 and the modulus of elasticity of steel to be 200 GPa. The strain along the 𝑧-direction is 𝜀𝑧𝑧= −3 × 10−4. The value of 𝜎𝑦𝑦 (in MPa) is______(rounded off to one decimal place).
Answer: 79.5 to 80.5