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Scenario B: Figure 2 shows part of an automatic screwdriver designed to drive several million screws. The maximum torque required to drive a screw is 11.3 Nm (i.e., torque varies from 0 to 11.3 Nm). d Figure 2: Scenario B illustrating a screwdriver under the fluctuating torque Table 2: Parameter variations for scenario B. All dimensions are in mm. Case Case 2 Parameter r d D Material D 1.0 15 25 AISI 1095 HR Your tasks are to 1) Find the factor of fatigue safety using Goodman failure criterion. 2) Determine the largest static torque, T, the screwdriver may be subjected to using the Von Mises criterion and a factor of safety of 2. 3) Develop a matlab code that can perform the calculations for 1) and 2), regardless of the parameter variations. Changes of the variations can be done by specifying different variable values within the .m file. Interpolation of stress concentration values should be demonstrated.

Scenario B: Figure 2 shows part of an automatic screwdriver designed to drive several million screws. The maximum torque required to drive a screw is 11.3 Nm (i.e., torque varies from 0 to 11.3 Nm). d Figure 2: Scenario B illustrating a screwdriver under the fluctuating torque Table 2: Parameter variations for scenario B. All dimensions are in mm. Case Case 2 Parameter r d D Material D 1.0 15 25 AISI 1095 HR Your tasks are to 1) Find the factor of fatigue safety using Goodman failure criterion. 2) Determine the largest static torque, T, the screwdriver may be subjected to using the Von Mises criterion and a factor of safety of 2. 3) Develop a matlab code that can perform the calculations for 1) and 2), regardless of the parameter variations. Changes of the variations can be done by specifying different variable values within the .m file. Interpolation of stress concentration values should be demonstrated.

Elements Of Electromagnetics
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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The following tools / resources can be used
a. Chatgpt
b. Matlab 

You may use your own engineering judgement to make any assumptions on any “missing” 
details of your scenario, provided that you state your assumption(s) and provide your 
justification(s). 

Scenario B: Figure 2 shows part of an automatic screwdriver designed to drive several million screws. The maximum torque required to drive a screw is 11.3 Nm (i.e., torque varies from 0 to 11.3 Nm). d Figure 2: Scenario B illustrating a screwdriver under the fluctuating torque Table 2: Parameter variations for scenario B. All dimensions are in mm. Case 1 Case 2 Parameter r d D Material D 1.0 15 25 AISI 1095 HR Your tasks are to 1) Find the factor of fatigue safety using Goodman failure criterion. 2) Determine the largest static torque, T, the screwdriver may be subjected to using the Von Mises criterion and a factor of safety of 2. 3) Develop a matlab code that can perform the calculations for 1) and 2), regardless of the parameter variations. Changes of the variations can be done by specifying different variable values within the .m file. Interpolation of stress concentration values should be demonstrated.
Transcribed Image Text:Scenario B: Figure 2 shows part of an automatic screwdriver designed to drive several million screws. The maximum torque required to drive a screw is 11.3 Nm (i.e., torque varies from 0 to 11.3 Nm). d Figure 2: Scenario B illustrating a screwdriver under the fluctuating torque Table 2: Parameter variations for scenario B. All dimensions are in mm. Case 1 Case 2 Parameter r d D Material D 1.0 15 25 AISI 1095 HR Your tasks are to 1) Find the factor of fatigue safety using Goodman failure criterion. 2) Determine the largest static torque, T, the screwdriver may be subjected to using the Von Mises criterion and a factor of safety of 2. 3) Develop a matlab code that can perform the calculations for 1) and 2), regardless of the parameter variations. Changes of the variations can be done by specifying different variable values within the .m file. Interpolation of stress concentration values should be demonstrated.
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