3:03 PM POT " (-) 46.112.40 64 K/S gabigreat887 45 minutes ago an angle of 45* with the axis of minor tensile stress. 4. A rectangular block of material is subjected to a tensile stress of 110N/mm² on one plane and a tensile stress of 47N/mm² on the plane at right angles to the former. Each of the above stresses is accompanied by a shear stress of 63N/mm² and that associated with the former tensile stress tends to rotate the block anticlockwise. Find the direction and magnitude of each of the principal stress and the magnitude of the greatest shear stress. 5. Direct stresses of 120N/mm² tensile and 90N/mm² compression exist on two perpendicular planes at a certain point in a body. They are also accompanied by shear stress on the planes. The greatest principal stress at the point due to these is 150N/mm². What must be the magnitude of the shearing stresses on the two planes and what will be the maximum shearing stress at the point? 6. At a certain point in a strained material, the stresses on two planes, at right angles to each other are 20N/mm² and 10N/mm² both tensile. They are accompanied by a shear stress of magnitude of 10N/mm² Find the location of principal planes and evaluate the principal stresses. 7. At a point in a bracket the stresses on two mutually perpendicular planes are 35N/mm² (tensile) and 15N/mm² (tensile). The shear stress across these planes is 9N/mm². Find the magnitude and direction of the resultant stress on a plane making an angle of 40" with the plane of the minor axis. Find also the normal and tangential stresses on the planes. Help me solve this question about Using analytical methods and graphical method = O כ Մ ← Reply
3:03 PM POT " (-) 46.112.40 64 K/S gabigreat887 45 minutes ago an angle of 45* with the axis of minor tensile stress. 4. A rectangular block of material is subjected to a tensile stress of 110N/mm² on one plane and a tensile stress of 47N/mm² on the plane at right angles to the former. Each of the above stresses is accompanied by a shear stress of 63N/mm² and that associated with the former tensile stress tends to rotate the block anticlockwise. Find the direction and magnitude of each of the principal stress and the magnitude of the greatest shear stress. 5. Direct stresses of 120N/mm² tensile and 90N/mm² compression exist on two perpendicular planes at a certain point in a body. They are also accompanied by shear stress on the planes. The greatest principal stress at the point due to these is 150N/mm². What must be the magnitude of the shearing stresses on the two planes and what will be the maximum shearing stress at the point? 6. At a certain point in a strained material, the stresses on two planes, at right angles to each other are 20N/mm² and 10N/mm² both tensile. They are accompanied by a shear stress of magnitude of 10N/mm² Find the location of principal planes and evaluate the principal stresses. 7. At a point in a bracket the stresses on two mutually perpendicular planes are 35N/mm² (tensile) and 15N/mm² (tensile). The shear stress across these planes is 9N/mm². Find the magnitude and direction of the resultant stress on a plane making an angle of 40" with the plane of the minor axis. Find also the normal and tangential stresses on the planes. Help me solve this question about Using analytical methods and graphical method = O כ Մ ← Reply
Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter7: Analysis Of Stress And Strain
Section: Chapter Questions
Problem 7.2.26P: -26 A rectangular plate of dimensions 125 mm × 75 mm is subjected to tensile stress sy= 67 kPa and...
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