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Calculation for Stress-strain carves:
After reaching point D, if bar is strained further, a local reduction in cross section occurs in gauge length (that is, formation of neck). At this neck stress increases with decrease in area at constant load, till failure take place. Point F is called as 'rupture point. Note that all the stresses are based on original area of cross section in drawing curve of the given figure. 1. Yield strength = where (original area ) 2. Ultimate strength = 3. % Elongation =
where LF = Final length of specimen
L0 = Original length of specimen 4. % Reduction in area =
where AF = Final area of cross section
A0 = Original area of cross section
5. Young's modulus of elasticity, E =
From the figure clastic limit is up to point B.
Consider fully developed laminar flow with constant properties in a circular tube. Let there be heat transfered to or from the fluid at a constant rate per unit of tube length.Ad
What do you known by Investment casting ? What are main materials used for building the investment pattern ?
Q. Two coils with self inductances 1H and 4H have a mutual inductance of 1H. The RMS value of current flowing in the two coils is 4A and 1A respectively. Find the coupling factor
write short note on''coefficient of insensitiveness''of governors.
Q. Cold service insulation on pipe? Factory fabricated sectional pipe insulation shall be applied in staggered joint construction. On multiple layer construction, all joints sh
A 10 kg block slides down a smooth inclined surface as shown in Figure. Show the terminal velocity of the block if the 0.1 mm gap among the block and the surface have SAE30 oil at
Isolated System: In an Isolated system, neither energy nor masses are permitted to cross the boundary. The system has constant mass and energy. No such system exists physicall
ENTHALPE
Flash Butt Welding The two pieces to be welded are pressed against each other by applying a pressure. To whatever finish the faces are machined, there will be some protuberance
what is Otto cycle?
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