- Unsymmetric Bending 5 Of 5 Learning Goal To Determine The Absolute Maximum Bending Stress In A Rectangular Cross Sect 1 (65.84 KiB) Viewed 41 times
Part A - Free-body diagram of the resolved components of the moments The two externally applied moments can be resolved into their respective y and z components. Determine the moments in each principal direction, My and M. and draw the corresponding free-body diagram. Draw the vectors M, and M, that represent the total y and z components of the two externally applied moments. Assume all angles are measured in degrees. View Available Hints) No elements selected Select the elements from the list and add them to the canvas setting the appropriate attributes.
Part B - Moments of inertia of the cross section with respect to the y-and z-axes To calculate the absolute maximum bending stress in the member using the flexure formula for unsymmetrical bending, the moments of inertia of the cross section must be calculated. Select the correct formulas for these values. ► View Available Hints) O 1,=ı xh x 23 +xxd4;1, = xw x h+ xaxd4 O I = 3 x x + x R x d';I, = 3 x 20 x hở + x 7 x d* O 1,= 1 xh x w3 - xnxd4;1; = 1 xw x h3 - 1 xa xd4 O 1,= 1 x H x 23 - 6 xd4;1, = li xw x h3 Bà x 7 x dº Submit Part C - Neutral-axis angle due to externally applied moments The neutral-axis angle of the cross section being analyzed is the axis along which there is a zero stress value. Determine the neutral-axis angle, a, due to the externally applied moments as measured counterclockwise from the positive z axis in the yz plane. Express your answer to three significant figures and include the appropriate units. View Available Hints) IMA ? a Value Units Submit
Part D- Absolute maximum stress in cross section ABCD Determine the absolute maximum stress. Lomax, in cross section ABCD due to the two externally applied moments. Express the answer to three significant figures and include the appropriate units. View Available Hint(s) μΑ ? lomax = Value Units Submit