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Main Factors to be Considered when Selecting Material
The main factors to be considered when selecting a material to meet some specific requirement are:
To assess the fitness of use, it is necessary to analyze the component function and determine the minimum property requirements (strength, toughness, etc.) required of a material. For any particular application, not all properties are of equal importance, for example creep resistance is of extreme importance for gas turbine disc and blade materials but of no consequence for, say, the transmission shaft of a small car, whereas fatigue resistance would be of equal importance in both cases.
Formability is an important characteristic, as this will affect the production methods to be used and costs of manufacture.
It may seem a fairly obvious point but before selecting a material it is necessary to know whether the chosen material is readily available in the quantities required.
Cost is of vital importance, as the final article must be produced at an acceptable cost if it is to be marketable. The fina1 cost will be based on both the material cost and the costs of processing.
(a) Prove that the fourier series expansion for the function x(t) described in the finite interval -π ≤ t≤ π x(t) = 0 -π ≤ t ≤ 0 x(t) = sint 0 ≤ t ≤ π (b) Represent t
LASER SURFACE TREATMENT APPLICATIONS The laser can be used to alter the surface structure of materials either with or without alloying additions as compared to alloying by
extraction of refractories
At a fixed point in a strained material the intensities of normal stress on the planes at right angles to each other are 20 N/mm 2 and 10 N/mm 2 . Evaluate the principal stresses
Seismometer : this is a transducer in which signal is proportional to the displacement. Accelerometer : This is a transducer in which signals is proportional to the a
Cooling of storage tanks: A research involving using a bench top scale wind tunnel to investigate heat losses from storage tanks. A series of small scale model tanks have bee
What are the Elements of Theory of Vibrations All bodies possessing mass and elasticity can vibrate or undergo vibratory motion. Let us understand a few basic definitions used
In Grey Cast Iron, carbon is present in ------------form while in white cast iron, it is found in ----------- form.
A child is twirling a 0.0106 kg ball on a string in a horizontal circle whose radius is 0.096 m. The ball travels once around the circle in 0.540 s. (a) Determine the centripeta
#question. Inert pair effect
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