A section of the patellar tendon is 34 mm2 in cross-section. What would the stress in...
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Task 3 Determine the strain when the rod is drag with force F 40 KN and Material's fy= 355 MPa and E = 210 GPa. The cross section area of the rod A, 250 mm2 1200 mm b, 4,51-10-4 c. 1022 μ a. 762 μ d, 204-10-6 d● 204-106 mm nswer e. 1,0 mm
Task 3 Determine the strain when the rod is drag with force F 40 KN and Material's fy= 355 MPa and...
The Achilles tendon, which connects the calf muscles to the heel, is the thickest and strongest tendon in the body. In extreme activities, such as sprinting, it can be subjected to forces as high as 10 times a person's weight. According to one set of experiments, the average area of the Achilles tendon is 77.9 mm2 , its average length is 25 cm , and its average Young's modulus is 1474 MPa . part a for tensile stress is 7.08x10^7...
Two bars BC and CD of cross sectional areas 100 mm2 and 50 mm2 respectively rigidly connected at C and also to fixed walls at their other ends as shown in Figure 4. Both bars are made of the same material having an elastic modulus E = 200 GPa and have the same length 0.5 m. An axial load P is applied at C (towards B) as shown in the figure. Find the maximum force P that can be safely...
1. A cross section of a RC beam is described in a below figure. Three No. 29 reinforcing bars are located at the bottom of the section. The area of a #29 reinforcing bar is 645 mm2 while the yield strength of the steel bar is 420 MPa. The tensile strength of concrete is 2.7 MPa, and the compressive strength of concrete is 21 MPa. In addition, n= E/Eis selected as 8. (1) Compute the maximum compressive and tensile stresses...
Figure 1 shows the cross section of a lipped channel. The cross section carries a shear force of 250 kN acting at 45° below the major principal axis (as shown) and through the shear centre. Determine the Ans: 134.1 MPa) maximum shear stress. (Use line of mid-thickness properties) t 45 34 S.C 250 N たA 100 Figure
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S. Draw a possible stress strain graph for a material with a yield stress of 300 MPa, an elastic modulus of 200 GPa, a UTS of 450 MPa and a ductility of 20%. Calculate the elastic strain at the point where the material starts to plastically deform. 6. A nylon rope with an elastic modulus of 3 GPa is placed under a force of 17.5 kN. The cross-sectional area of...
Figure 1 shows the cross section of a lipped channel. The cross section carries a shear force of 250 kN acting at 45° below the major principal axis (as shown) and through the shear centre. Determine the (Ans: 134.1 MPa) maximum shear stress. (Use line of mid-thickness properties) た45 S.c 4250 N たA 100 Figure 1
Figure 1 shows the cross section of a lipped channel. The cross section carries a shear force of 250 kN acting at 45° below...
1. Consider a bar under tension. The bar has length L, rectangular cross-section of sides b and h, Young's modulus E, density p, and applied tensile force P. a) If all parameters are fixed except for h, find the value of h that minimizes the mass of the bar under stress, elongation, and stiffness constraints. Assume safety factors oo, Os, and Ok and failure values o*, 8*, and k* b) Also find the minimum mass of the bar m under...
A beam of the cross section shown is made of a steel that is assumed to be elastoplastic with E= 200 GPa. The bending is about the z axis. A couple of moment equal to the full plastic moment Mp is applied and then removed. Using a yield strength of 240 MPa, determine the residual stress at y = 45 mm. 90 mm 60 mm The residual stress is D M Pa.
(3pts): The truss is constructed of A36 steel (E -2 a cross-sectional area of 250 mm2. Answer the following s 300 Clbe wna -250 MES, AI 00 G Pa and O, 250 MPa). All truss members have (a) Determine the normal stress and strain in member CD. (b) The support at joint D uses a pin placed in double shear. The pin diameter is 20 mm Determine the average shear stress acting in the pin. 50 kN 50 kN 25...