A steel penstock 60 cm in diameter has a shell thickness of 1.2 cm. The modulus of elasticity of pipe shell material is 2.1 × 105 N/mm² with a Poisson's ratio of 1/4, and the volume modulus of elasticity of water is 2.1 x 103 N/mm². The pipe is designed to discharge water at mean velocity of 2.1 m/sec Determine the water hammer pressure rise caused by sudden closure of the valve at the d/s end (1) neglecting the elasticity of the pipe material; and (2) considering the elasticity of the pipe material.

Q: Determine the stress in a fiber (in psi) located 1inch from the top of the beam and 4 feet from the…

A:

Q: For an assembly shown below, determine the stresses in each rod after a temperature rise of 30°C.…

A: Given:- Properties of barBronze   Length=1.2 m=1200 mm                C/S    =1400  mm2…

Q: A fluid having a specific gravity of 0.869 and dynamic viscosity of 0.0814 Pa-s flows through a cast…

A:

Q: In figure, if the fluid is SAE 30 oil at 20 °C (= 0.44 Pa.s) and D=7mm, what shear stress is…

A:

Q: Q.3 (b) A uniform cantilevered steel column with one end fixed and one end free in both directions…

A:

Q: 2.4 An 18-m-long steel wire of 5-mm diameter is to be used in the manufacture of a prestressed…

A:

Material Properties

Construction in civil engineering demands high strength, durability, and longevity. These targets can be achieved by better design and analysis, along with the correct choice of materials. Different materials have different properties and hence, they respond and performs differently under the various condition of external loadings. It is therefore a critical task of an engineer to select the right material based on the property that the material is supposed to function in real-time. When speaking about the property, there are different categories of material properties like chemical property, physical property, mechanical property, electrical property, magnetic property, thermal property, etc. These material properties form the basis of material selection in various applications.