3) A load of 2,700 N acts on the machine part shown below. The machine part has a uniform thickness of 12 mm. Note: Point H will not be used in this problem and may be disregarded. a) Draw an FBD at showing the internal forces present at K. You may choose which side of the part to cut off. One method means you must find reactions at A and B. Choose the method that seems easier to you. b) Calculate the normal and shear stresses at point K (in MPa). [Ans. to check: = 0; ay = -10.89 MPa; Txy=-6.85 MPa] c) Draw the stress element at the point located at K. d) Calculate the normal and shear stresses if you rotate the element -20°. Draw a properly oriented stress element. 2,700 N 135 mm 60° C 50 mm 75 mm 50 mm X 40 mm 15 mm # 12 mm PH 40 mm OK y

3) A load of 2,700 N acts on the machine part shown below. The machine part has a uniform thickness of 12 mm. Note: Point H will not be used in this problem and may be disregarded. a) Draw an FBD at showing the internal forces present at K. You may choose which side of the part to cut off. One method means you must find reactions at A and B. Choose the method that seems easier to you. b) Calculate the normal and shear stresses at point K (in MPa). [Ans. to check: = 0; ay = -10.89 MPa; Txy=-6.85 MPa] c) Draw the stress element at the point located at K. d) Calculate the normal and shear stresses if you rotate the element -20°. Draw a properly oriented stress element. 2,700 N 135 mm 60° C 50 mm 75 mm 50 mm X 40 mm 15 mm # 12 mm PH 40 mm OK y

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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