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3- The strains at a point in a generally orthotropic ply are Ex = 0.005, Ey...
Orthotropic Material 3. (20 pts) Suppose we have a thin composite material comprised of unidirectional graphite...
Orthotropic Material 3. (20 pts) Suppose we have a thin composite material comprised of unidirectional graphite fibers in an epoxy matrix. The ply is loaded in uniaxial tension in the x direction. Plane stress conditions can be assumed. The ply is oriented at an angle 0 from the x axis as shown. Material properties for this material (which may be assumed to be orthotropic) are given in the following figure. T300/934 ET= 9.65 GPa a) (8 pts) Given θ-200, find...
The measured strains are ε,-8001s, eb--420 μs and ε.-640 μs. The material is Al 2024-T4 aluminium alloy. (a) Determine the strains in x-y axes (Ex, Ey and Yxy) and show them in deformed element. Calc...
The measured strains are ε,-8001s, eb--420 μs and ε.-640 μs. The material is Al 2024-T4 aluminium alloy. (a) Determine the strains in x-y axes (Ex, Ey and Yxy) and show them in deformed element. Calculate the stresses by using material properties given in the Table. (b) Determine the stresses for the oriented element in 0 30° from the original position in the counter clockwise direction by using Mohr circle and represent the stress state. 60° 60 Young's Modulus (GPa) 73...
The figure on the left below shows a stress block (plane strain condition is assumed, z...
The figure on the left below shows a stress block (plane strain condition is assumed, z axis is not shown here). Its components as well as the material properties are, • 0,= 10 MPa . O, is currently unknown • Txy = 30 MPa • Young's Modulus E = 150 GPa • Poisson's Ratio V=-0.25 • Note: Poisson's Ratio is negative Rotate the x-y axes in the anticlockwise direction by 45° (as shown in the figure on the right below),...
10. (This topic is not covered on exam 3) moments about the axes and the center of mass. Mass, kg Location, m. (S,1) (-3.2) (1-1) a. A system of point masses (kg, meters) is distributed in the xy...
10. (This topic is not covered on exam 3) moments about the axes and the center of mass. Mass, kg Location, m. (S,1) (-3.2) (1-1) a. A system of point masses (kg, meters) is distributed in the xy-plane as follows. Find the (1,0) (4,-2) b. Find the centroid of the triangular region with vertices (0,0), (3,0), and (5,0). c. Find the center of mass of a thin homogeneous plate forming a sector of a circle of radius r and angle...
need solution for milestones A Q1 Solid Mechanics 3 Assessment Task 1a - 2020 Milestone a...
need solution for milestones A Q1
Solid Mechanics 3 Assessment Task 1a - 2020 Milestone a Question 1. For each of the plane-stress conditions given below, construct a Mohr's circle of stress, find the principal stresses and the orientation of the principal axes relative to the xy axes and determine the stresses on an element, rotated in the x-y plane 60° counterclockwise from its original position: (a) dx = 200 MPa Oy - 300 MPa T .40 MPa (b) dx...
22. Find parametric equations of the line tangent to the sur- face z at the point (3, 2, 72) whose projection on...
22. Find parametric equations of the line tangent to the sur- face z at the point (3, 2, 72) whose projection on the xy-plane is (a) parallel to the x-axis; (e) parallel to the line x y (b) parallel to the y-axis; 1. The system in Fig,1 is in equilibrium, with the string in the center exactly horizontal. Block A weighs 40 N, block B weighs 50 N, and angle is 35°. Find (a) tension Ti. (b) tension T2. (c)...
8. Refer to the axial loading problem 3 above. In that problem you were asked to...
8. Refer to the axial loading problem 3 above. In that problem you were asked to calculate normal and shear stress components on a given plane (45° CCW as shown in that figure). Considering it as 2D plane stress problem draw a Mohr's circle and determine the normal and shear stress components on the given plane from the Mohr's circle this time. Calculate the quantities considering the geometry (which means you don't need to draw the Mohr's circle in scale...
Procedure: Fire a practice shot. Locate the landing point on the floor then secure a piece...
Procedure: Fire a practice shot. Locate the landing point on the floor then secure a piece of white paper to the floor (centered about the landing point). Cover the sheet with a piece of carbon paper and tape it down. 1. Shoot the ball at least 5 times. Take care not to disturb the position of the launcher during the shots. 2. Measure the vertical height H of the projectile launcher from the floor. (Use a plumb bob determine the...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...
All of the following questions are in relation to the following journal article which is available...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...
Orthotropic Material 3. (20 pts) Suppose we have a thin composite material comprised of unidirectional graphite fibers in an epoxy matrix. The ply is loaded in uniaxial tension in the x direction. Plane stress conditions can be assumed. The ply is oriented at an angle 0 from the x axis as shown. Material properties for this material (which may be assumed to be orthotropic) are given in the following figure. T300/934 ET= 9.65 GPa a) (8 pts) Given θ-200, find...
The measured strains are ε,-8001s, eb--420 μs and ε.-640 μs. The material is Al 2024-T4 aluminium alloy. (a) Determine the strains in x-y axes (Ex, Ey and Yxy) and show them in deformed element. Calculate the stresses by using material properties given in the Table. (b) Determine the stresses for the oriented element in 0 30° from the original position in the counter clockwise direction by using Mohr circle and represent the stress state. 60° 60 Young's Modulus (GPa) 73...
The figure on the left below shows a stress block (plane strain condition is assumed, z axis is not shown here). Its components as well as the material properties are, • 0,= 10 MPa . O, is currently unknown • Txy = 30 MPa • Young's Modulus E = 150 GPa • Poisson's Ratio V=-0.25 • Note: Poisson's Ratio is negative Rotate the x-y axes in the anticlockwise direction by 45° (as shown in the figure on the right below),...
10. (This topic is not covered on exam 3) moments about the axes and the center of mass. Mass, kg Location, m. (S,1) (-3.2) (1-1) a. A system of point masses (kg, meters) is distributed in the xy-plane as follows. Find the (1,0) (4,-2) b. Find the centroid of the triangular region with vertices (0,0), (3,0), and (5,0). c. Find the center of mass of a thin homogeneous plate forming a sector of a circle of radius r and angle...
need solution for milestones A Q1
Solid Mechanics 3 Assessment Task 1a - 2020 Milestone a Question 1. For each of the plane-stress conditions given below, construct a Mohr's circle of stress, find the principal stresses and the orientation of the principal axes relative to the xy axes and determine the stresses on an element, rotated in the x-y plane 60° counterclockwise from its original position: (a) dx = 200 MPa Oy - 300 MPa T .40 MPa (b) dx...
22. Find parametric equations of the line tangent to the sur- face z at the point (3, 2, 72) whose projection on the xy-plane is (a) parallel to the x-axis; (e) parallel to the line x y (b) parallel to the y-axis; 1. The system in Fig,1 is in equilibrium, with the string in the center exactly horizontal. Block A weighs 40 N, block B weighs 50 N, and angle is 35°. Find (a) tension Ti. (b) tension T2. (c)...
8. Refer to the axial loading problem 3 above. In that problem you were asked to calculate normal and shear stress components on a given plane (45° CCW as shown in that figure). Considering it as 2D plane stress problem draw a Mohr's circle and determine the normal and shear stress components on the given plane from the Mohr's circle this time. Calculate the quantities considering the geometry (which means you don't need to draw the Mohr's circle in scale...
Procedure: Fire a practice shot. Locate the landing point on the floor then secure a piece of white paper to the floor (centered about the landing point). Cover the sheet with a piece of carbon paper and tape it down. 1. Shoot the ball at least 5 times. Take care not to disturb the position of the launcher during the shots. 2. Measure the vertical height H of the projectile launcher from the floor. (Use a plumb bob determine the...
Consider a cylindrical capacitor like that shown in Fig. 24.6. Let d = rb − ra be the spacing between the inner and outer conductors. (a) Let the radii of the two conductors be only slightly different, so that d << ra. Show that the result derived in Example 24.4 (Section 24.1) for the capacitance of a cylindrical capacitor then reduces to Eq. (24.2), the equation for the capacitance of a parallel-plate capacitor, with A being the surface area of...
All of the following questions are in relation to the following journal article which is available on Moodle: Parr CL, Magnus MC, Karlstad O, Holvik K, Lund-Blix NA, Jaugen M, et al. Vitamin A and D intake in pregnancy, infant supplementation and asthma development: the Norwegian Mother and Child Cohort. Am J Clin Nutr 2018:107:789-798 QUESTIONS: 1. State one hypothesis the author's proposed in the manuscript. 2. There is previous research that shows that adequate Vitamin A intake is required...
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