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An element in biaxial stress is subjected to stresses σx = −16 MPa and σy =42 MPa, as shown in the figure. Using Mohr's circle, determine:
(a) the stresses acting on an element oriented at a slope of 1 on 2.5 (see Fig Q1)
(b) the maximum shear stresses and associated normal stresses. Show all results on sketches of properly oriented elements.
1. Starting from rest, an elevator weighing 8.9kN attains an upward velocity of 5m/s in 4 seconds with uniform acceleration. Find the apparent weight of a man weighing 667.23N standing inside the elevator during the ascent.
It is required to lift a load of 1.2 tons through a height of 320
mm by using a screw jack under the following condition:
• The available material of the screw is plain carbon steel
which has elastic strength in tension and compression of
200 MPa and in shear 120 MPa respectively.
• The available material of the nut is phosphor-bronze for
which the elastic limit may be taken as 100 MPa in
tension, 90 MPa in compression and 80 MPa in shear.
• The bearing pressure between the nut and the screw is
not to exceed 20 N/mm?.
Design and draw the screw jack. The design should include
the design of:
1) The screw,
2) Nut,
3) Handle and Cup, and
4) Body.
Draw to full scale an isometric and multi-views for the screw
jack.
The design report should include the following:
• Calculation sheet.
• Detail drawing (soft).
• References including material data sheets and used
curves and tables.
• Assume any missing data.
Discuss at least five of your favourite crops in relation to optimum temperature, Zone of stress and limits of tolerance
Link AB rotates through a limited range of the angle and as end A causes the skitted link AC to rotate also for the instant represented where beta = 60 degrees and rho=0.6 r.nd/r constant, determine the corresponding values of r > b and e
t best book on analysis of statically indeterminate system using approximation methods (portal frame and cantilever method).
Write a Executive summary on (Zenor Diode) with 75-95words only. Also write its at least 2 example with explanations
The measure of the linear density at a point of a rod varies directly as the third power of the measure of the distance of the point from one end. The length of the rod is 4 ft. and the linear density is 2 slugs/ft at the center. Find the center of mass of the rod.
Software development is a creative process not a manufacturing process. Discuss the characteristics of manufacturing that apply to software development and explain which characteristics of software development are more like a creative endeavor.
How does the Spiral Model address the need of accurately determining the software requirements? Justify
How does the Spiral Model handle the need for risk management? Justify
15. The tooth thickness of a gear is 0.5 in. and its circular pitch 1.0 in. Calculate the dedendum of the gear. (SHOW ANSWER AND SOLUTION)
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