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It is desired to produce an iron-carbon alloy that has a minimum hardness of 200 HB and a minimum ductility of 35%RA. Is such an alloy possible? If so, what will be its composition and microstructure (coarse and fine pearlites and spheroidite are alternatives)? If this is not possible, explain why.
A semi-elliptic multi-leaf spring is needed for the suspension of the rear axle of a truck. It consists of two extra full-length leaves and ten graduated length leaves including th
An internal wheel B with 80 teeth is keyed to shaft F. A fixed internal wheel with 82 teeth is concentric with B. A compound wheel DE gear with two internal wheels, D has 28 teeth
Stress in thin rotation rims
Reversible and irreversible processes: Thermodynamic system which is capable of restoring the original state of it by reversing the factors responsible for occurrence of proc
A piston-cylinder assembly fitted with a paddle wheel contains air, initially at p1=30 lbf/in2, T1=540 °F, and V1=4 ft3. The air undergoes a process to a final state where p2=20 lb
An unsymmetrical I-Section as shown in figure below. If maximum bending stress is not extend more than 40MPa in the section than find out the moment which it can bear
Evaluate the reactions at hinge and roller support: Q: A Force P = 5000N is applied at centre C of beam AB of length 5m as shown in figure given below. Find the reactio
Find out the proof load in close coiled helical spring: A close coiled helical spring is built of 6 mm diameter wire. The coil diameter is equal to 80 mm, number of coil is 10
1. Determine young''s modulus using first 20 data points 2. Determine yield strain and yield stress based on -0.1 offset 3. Determine max(or min) stress. 4. Determine toughness
A second order system defined by Where r(t) is a unit step function. Calculate the damping ratio, damped natural frequency, undamped natural frequency, peak overshoot occurs, ri
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