Application of Enginerring Principles Essay Example | Topics and Well Written Essays - 2500 words

Application of Enginerring Principles - experiment ExampleHowever, this increase in deflection is going to be minimal. iii. Discuss the possibilities of errors occurring in the tensile test. Errors may be introduced into the tensile test due to various reasons such as incorrect measurement of distance of the sample due to incorrect reading from vernier calliper due to zero error parallax error. errors in telephone dial calliper zero error during initial calibration parallax error while reading dial calliper. c. The figure shows a bar consisting of four lengths. i. Find the load carried by the bar at B, if the count extension is 0.063 mm. ii. Find the total extension of the bar, if loads applied at both ends are increase by 10%. If the loads at both ends are increased by 10% therefore inserting the new values into (1) gives Take E = 2 x 105 N/mm2 for both the cases. d. A load of 500kN is applied on a short concrete column four hundredmmx500mm. The column is reinforced with 3 stee l bars of 20mm diameter and 3 bars of 30mm diameter. If the modulus of elasticity for steel is 20 times that for concrete, mystify the stresses in both concrete and steel bars. Areas for concrete and steel bars are AS = 400 x 500 = 2 x 105 mm2 AC = 3?(10)2 + 3?(15)2 = 3063.45 mm2 Solving concurrently we get Now e. Discuss the load shared by heterogeneous cylinder will be more than the conventional cylinder. A composite cylinder can bear greater load than a conventional cylinder. This is due to the presence of materials that have greater tensile strength than the majority opus material. For example, in the case of steel reinforced steel bars, the steel has a greater tensile strength and cosmos stronger can bear larger loads than what concrete could separatewise bear. Moreover, the steel in question tends to filter out as much as the concrete which helps it to bear greater loads too. Another reason for composite cylinders being better at load bearing is because the constituent materials are distinct and are act to move past each other within the overall structure. The presence of friction between the composing materials of a cylinder enable it to take larger loads too because the friction would need to be overtaken if the cylinder were to disintegrate. Question Two a. Based on the results obtained from Shear Force Measurement Experiment in the laboratory i. Name the type of beam used. ii. Critically analyse the variations of theoretical shear force and data-based shear force at the sensor for the given load condition in the laboratory. iii. Usually measuring rod instruments absorbs some input dynamism to respond. Discuss how this affects the measurement. Measuring instruments absorb some of the energy that is produced in an experimental or other situation. The instruments need energy to generally overcome their own internal inertias. The absorption of energy tends to lower the amount of force certainly available for measurement. However, in most si tuations the instruments are kept plain and light enough to ensure that the loss of energy is not too high to affect the actual measurement process. iv. Analyse the indication of a sudden change in shear force from prejudicious to positive value. Positive shear tends to produce positive bending with geometrical minimas becoming apparent. On the other hand, negative shear tends to produce negative bending with geometrical maximas becoming apparent. As soon as the shear changes from negative to positive, the shape of the sag in the object changes as mentioned