Hoop stress and longitudinal stress in boiler shell under internal pressure are 100 MPa and 50 MPa. Modulus of elasticity and μ are 200 GPa and 0.3 respectively. Hoop strain of boiler is

Hoop stress and longitudinal stress in boiler shell under internal pre

1.	Hoop stress and longitudinal stress in boiler shell under internal pressure are 100 MPa and 50 MPa. Modulus of elasticity and μ are 200 GPa and 0.3 respectively. Hoop strain of boiler is
A.	4.25 × 10-4
B.	5 × 10-4
C.	5.8 × 10-4
D.	7.5 × 10-4
Answer» B. 5 × 10-4

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Hoop stress and longitudinal stress in boiler shell under internal pressure are 100 MPa and 50 MPa. Modulus of elasticity and μ are 200 GPa and 0.3 respectively. Hoop strain of boiler is

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