2. An axially loaded flat bar shown in Fig. 2 below is made of steel with a proportional limit of 57000 psi. Its is 0.4 inches, its width is 3 inches, the groove radius is 0.5 inches, and the diameter of the hole is 0.3 inches. (a) Using the appropriate graphs in Fig 4, determine the stress concentration factors, K, at (i) the grooves; and (ii) the hole. (b) Determine the two values of the average stress (or) in terms of the axial load P (i) between the two grooves; and (ii) outside the hole area. (c) From your calculated K and the net area, A, determine the two values of the maximum stress in terms of the axial load P (i) at the groove; and (ii) at the hole. (d) From your answers in (c), and considering proportional limit of the bar determine the numerical values of P (i) in the vicinity of the grooves; and (ii) in the vicinity of the hole. (e) From your answers in (d) what is the maximum allowable axial load, Pan, the flat bar can carry with a factor of safety of 2.5. (Hints: 1. Net area is required for Oew 2. Note Pall is not the same as ɑul).

2. An axially loaded flat bar shown in Fig. 2 below is made of steel with a proportional limit of 57000 psi. Its is 0.4 inches, its width is 3 inches, the groove radius is 0.5 inches, and the diameter of the hole is 0.3 inches. (a) Using the appropriate graphs in Fig 4, determine the stress concentration factors, K, at (i) the grooves; and (ii) the hole. (b) Determine the two values of the average stress (or) in terms of the axial load P (i) between the two grooves; and (ii) outside the hole area. (c) From your calculated K and the net area, A, determine the two values of the maximum stress in terms of the axial load P (i) at the groove; and (ii) at the hole. (d) From your answers in (c), and considering proportional limit of the bar determine the numerical values of P (i) in the vicinity of the grooves; and (ii) in the vicinity of the hole. (e) From your answers in (d) what is the maximum allowable axial load, Pan, the flat bar can carry with a factor of safety of 2.5. (Hints: 1. Net area is required for Oew 2. Note Pall is not the same as ɑul).

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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