consider the shaft is subjected to maximum load of 8 kN instead of 10 kN.
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consider the shaft is subjected to maximum load of 8 kN instead
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7. A particular machine part is subjected in service to a maximum load of 10 kN....
7. A particular machine part is subjected in service to a maximum load of 10 kN. With the thought of providing a safety factor of 1.5, it is designed to withstand a load of 15 kN. If the maximum load encountered in various applications is normally distributed with a standard eviation of 2 kN, and if part strength is normally distributed with a standard deviation of 1.5 kN, what failure percentage would be expected in service?
In an application, an Acme-threaded power screws is to be designed to raise a maximum load of 50 ...
SOLVE ALL , Show details clear and orgnaized
In an application, an Acme-threaded power screws is to be designed to raise a maximum load of 50 kN. (a) Select a satisfactory screw from the Table on the basis of tensile strength, limiting the tensile stress to 70 MPa (2 marks). (b) Then determine the required thickness of the nut that to limit the shear stress in the threads to 35 MPa (2 marks). (c) For the screw thus designed, check...
Consider a rectangular beam subjected to bending 15 kN 10 kN/m 20 kNm IITTI 0.15 m...
Consider a rectangular beam subjected to bending 15 kN 10 kN/m 20 kNm IITTI 0.15 m SIA 0.4 m 2m- Im- 1m 2m- Beam's cross-section a. (10 pts) Determine internal reaction (shear and bending moment) at point located 0.6 m to the left of B. b. (30 pts) Determine normal stress at that point A. Identify whether stress is tensile or compressive c. (30 pts) Determine shear stress at that point A. Identify whether stress is tensile or compressive. d....
A simply supported reinforced concrete beam of 8 m span is subjected to uniformly distributed load...
A simply supported reinforced concrete beam of 8 m span is subjected to uniformly distributed load as shown in Figure 3. The following data are given: The ultimate load, wu is 60 kN/m; characteristic strength of concrete, fck is 30 N/mm²; characteristic strength of reinforcement, fyk is 500 N/mm2. The effective depth, d is 650 mm. Take the link diameter, w as 10 mm, main bar diameter, o as 20 mm and concrete cover as 30 mm. Design the shear...
The simply supported beam is subjected to a uniform distributed load, w of 30 kN/m in...
The simply supported beam is subjected to a uniform distributed load, w of 30 kN/m in the negative y-direction and a point load, P of 15 kN in the negative z-direction. The total length, L of the beam is 6 m. Answer the questions that follow: 'n Eenvoudige opgelegde balk word belas met 'n uniform verspreide belasting van w 30 kN/m in die negatiewe y-rigting en 'n puntlas P = 15 kN in die negatiewe z-rigting. Die totale lengte, L...
As shown in Figure 8, the structural member (beam) is 7m long, carries a 2 kN point load, a 1.2 kN/m uniformly distribu...
As shown in Figure 8, the structural member (beam) is 7m long, carries a 2 kN point load, a 1.2 kN/m uniformly distributed load and is supported at points A and B. The beam is constructed from two pieces of steel plate (2 at 80mm x 8mm) that are welded together with 3mm welds. Section properties for the beam are also listed. Given the support reactions as RAv 5.8 kN and RBv 2.2 kN, as well as the shear force...
Questions 5-8 A steel frame shown below is subjected to combined uniformly distributed gravity load (w...
Questions 5-8
A steel frame shown below is subjected to combined uniformly distributed gravity load (w 2 kips/f) and a horizontal earthquake load of H-10 kips Both the beams and the columns are made of W12x120 section having a yield strength of F 45 ksi. The Young's modulus of steel s E-29,000 ksi. The distributed load w is used to simulate the self-weight of the beam, the load transferred from roof slab, as well addition superimposed dead loads. The self-weigh...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the ver...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Sm 100 mm Consider the flat bar with shoulder joints shown in Fig. A which is...
Sm 100 mm Consider the flat bar with shoulder joints shown in Fig. A which is subjected to a tensile force P-58 kN. The bar is made of Aluminum 6061 having maximum tensile strength Omar = 290 MPa. NOTE: plots of stress concentration factors for different types of loading can be found on page 6 (a) Determine the radiusr [mm] for the fillets. (b) An identical flat bar shown in Fig. B replaces the tensile load with a bending moment...
Question 3 For the simply supported steel beam with cross section and loading shown (see Figure...
Question 3 For the simply supported steel beam with cross section and loading shown (see Figure 3a), knowing that uniformly distributed load w=60 kN/m, Young modulus E = 200 GPa, and yield stress Cyield=200 MPa (in both tension and compression). ул 15 mm w=60 kN/m ... 1 B A 15 mm + 300 mm IC - i 2.5m 1 1 15 mm 7.5m 1 150 mm Figure 3a (a) Check if: the beam is safe with respect to yielding (using...
7. A particular machine part is subjected in service to a maximum load of 10 kN. With the thought of providing a safety factor of 1.5, it is designed to withstand a load of 15 kN. If the maximum load encountered in various applications is normally distributed with a standard eviation of 2 kN, and if part strength is normally distributed with a standard deviation of 1.5 kN, what failure percentage would be expected in service?
SOLVE ALL , Show details clear and orgnaized
In an application, an Acme-threaded power screws is to be designed to raise a maximum load of 50 kN. (a) Select a satisfactory screw from the Table on the basis of tensile strength, limiting the tensile stress to 70 MPa (2 marks). (b) Then determine the required thickness of the nut that to limit the shear stress in the threads to 35 MPa (2 marks). (c) For the screw thus designed, check...
Consider a rectangular beam subjected to bending 15 kN 10 kN/m 20 kNm IITTI 0.15 m SIA 0.4 m 2m- Im- 1m 2m- Beam's cross-section a. (10 pts) Determine internal reaction (shear and bending moment) at point located 0.6 m to the left of B. b. (30 pts) Determine normal stress at that point A. Identify whether stress is tensile or compressive c. (30 pts) Determine shear stress at that point A. Identify whether stress is tensile or compressive. d....
A simply supported reinforced concrete beam of 8 m span is subjected to uniformly distributed load as shown in Figure 3. The following data are given: The ultimate load, wu is 60 kN/m; characteristic strength of concrete, fck is 30 N/mm²; characteristic strength of reinforcement, fyk is 500 N/mm2. The effective depth, d is 650 mm. Take the link diameter, w as 10 mm, main bar diameter, o as 20 mm and concrete cover as 30 mm. Design the shear...
The simply supported beam is subjected to a uniform distributed load, w of 30 kN/m in the negative y-direction and a point load, P of 15 kN in the negative z-direction. The total length, L of the beam is 6 m. Answer the questions that follow: 'n Eenvoudige opgelegde balk word belas met 'n uniform verspreide belasting van w 30 kN/m in die negatiewe y-rigting en 'n puntlas P = 15 kN in die negatiewe z-rigting. Die totale lengte, L...
As shown in Figure 8, the structural member (beam) is 7m long, carries a 2 kN point load, a 1.2 kN/m uniformly distributed load and is supported at points A and B. The beam is constructed from two pieces of steel plate (2 at 80mm x 8mm) that are welded together with 3mm welds. Section properties for the beam are also listed. Given the support reactions as RAv 5.8 kN and RBv 2.2 kN, as well as the shear force...
Questions 5-8
A steel frame shown below is subjected to combined uniformly distributed gravity load (w 2 kips/f) and a horizontal earthquake load of H-10 kips Both the beams and the columns are made of W12x120 section having a yield strength of F 45 ksi. The Young's modulus of steel s E-29,000 ksi. The distributed load w is used to simulate the self-weight of the beam, the load transferred from roof slab, as well addition superimposed dead loads. The self-weigh...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Sm 100 mm Consider the flat bar with shoulder joints shown in Fig. A which is subjected to a tensile force P-58 kN. The bar is made of Aluminum 6061 having maximum tensile strength Omar = 290 MPa. NOTE: plots of stress concentration factors for different types of loading can be found on page 6 (a) Determine the radiusr [mm] for the fillets. (b) An identical flat bar shown in Fig. B replaces the tensile load with a bending moment...
Question 3 For the simply supported steel beam with cross section and loading shown (see Figure 3a), knowing that uniformly distributed load w=60 kN/m, Young modulus E = 200 GPa, and yield stress Cyield=200 MPa (in both tension and compression). ул 15 mm w=60 kN/m ... 1 B A 15 mm + 300 mm IC - i 2.5m 1 1 15 mm 7.5m 1 150 mm Figure 3a (a) Check if: the beam is safe with respect to yielding (using...
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