Mechanical and Materials Engineering Homework Solutions

mechanics

A bolt is 510mm long,one half of the bolt is 127mm in diameter the other half is 114mm in diameter.The tensile force on the bolt is 995KN.The mod of E is 200MPa.What will the extension of the bolt be? need step by step solution with answer.Thanks..

Hydraulic Circuit Diagram with description Needed

The above sketch shows a digger. Its overall mass is 5 tonnes. The extension of the arm is controlled by three cylinders, A, B and C. Cylinder A supports the arm from the chassis of the vehicle and cylinder C is between the bucket and the main arm. Draw a hydraulic circuit diagram for the control of the three cylinders suppo ...continues

tensile stress

17. A bar of steel 1 by 1 ½ in in cross section and 6 in long is subjected to a pull of 6000 lb. What is the average tensile stress in the bar?

Forces questions

1. What force is required to punch a hole 50 mm in diameter through a 16-mm-thick aluminum-alloy plate? An average stress of 265 MPa will cause this material to shear. 2. How wide a gap should be allowed between the 50-ft-long paving slabs of concrete in a street so that the slabs will touch each other at a temperature of 90 d ...continues

Draw the shear and bending moment diagram for the beam shown and find the value of the maximum bending stress.

Draw the shear and bending moment diagram for the beam shown and find the value of the maximum bending stress. This case is a Simple Beam Concentrated Load at a Point. Solving for Moment of inertia, c-value, Reactions, Shear, Moment, and Max Bending Stress are discussed. Two different solution methods are discussed.

Locate the centroid

Please see the attached file for full problem description.

Beam deflection and Stress at corner?

So, how would I set this problem up? We're asked to determine the deflection of a beam location for a 2000N load. However, the force is directed up the corner NOT centroid. In other words, at beam corner up through the side wall. Kind of like a ledge holding a flower pot. Given load=2000N, on the tip of a 1m beam. Beam ...continues

Forces of equilibrium

1. (20%) (a) Draw a free-body diagram of the system. (b) Find the forces acting on joints A,B & C. (c) Find the resultant A and its direction. Ax = _________ Ay = _________ A = __________ Bx = ___________ By = ___________ Cx = ___________ Cy = ____ ...continues

Forces of equilibrium

5.(20%) The draw bridge BCD weighs 1000 lb. 1000 lbs. Calculate: (a) the tension in the cable AC. (b) Dx and Dy and the resultant, D.

Design Engineering (Working Stress; Length:Diameter Ratio)

2) Find the diameter and length of a mild steel end journal on which there is a load of 35 KN (shock loading). Assume a safe working stress of 40 MPa and a lengh:diameter ratio of 1.5

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