Monday, October 7, 2019

Find 4 examples of failure due to creep that are relevant to the Essay

Find 4 examples of failure due to creep that are relevant to the transport industries - Essay Example The spring was subjected to the vehicle’s weight and initially underwent plastic deformation as the strain became higher. The strain rate reduces with time and levels out. Under effects of its operating environment (on average 480Â °K), the strain rate increased exponentially leading the spring to fracture. The spring actually failed at the third stage of creep failure. The melting point of the material is 265Â ° C (538Â °K) as noted by Turner (2001) and McCrum, Buckley, and Bucknall (2003). The ratio of operating temperature to melting point is 0.89. 2. Steam Pipe Failure The steam pipe of a locomotive failed as a result of creep in Uganda. The material used for making the steam pipes was austenitic steel. The working temperature of the tubes was set at about 6000C (873Â °K) and was subjected to high pressures, about 24.1MPa. The steam pipe burst as a result of creep failure leading to the emission of steam in the environment. Given that working temperature at time of bur st was about 830Â °K, the ratio of operating temperature to melting point is 0.95. 3. Aero Engine Turbine Blade Failure The turbine blade for a fighter plane was fractured as a result of creep failure (Tauqir & Khan 2002).

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