7.2-5 The stresses acting on element A on the web of a train rail (see figure part a) are found to be 6500 psi tension in the horizontal direction and 18,500 psi com- pression in the vertical direction (see figure part b). Also, shear stresses with a magnitude of 3800 psi act in the directions shown. Determine the stresses acting on an element ori- ented at a counterclockwise angle of 30° from the horizontal. Show these stresses on a sketch of an ele- ment oriented at this angle. Can Stock Photo Inc./corepics Cross Section (a) Can Stock Photo Inc./scanrail A Side View A 18,500 psi 16500 psi (b) 3800 psi

7.2-5 The stresses acting on element A on the web of a train rail (see figure part a) are found to be 6500 psi tension in the horizontal direction and 18,500 psi com- pression in the vertical direction (see figure part b). Also, shear stresses with a magnitude of 3800 psi act in the directions shown. Determine the stresses acting on an element ori- ented at a counterclockwise angle of 30° from the horizontal. Show these stresses on a sketch of an ele- ment oriented at this angle. Can Stock Photo Inc./corepics Cross Section (a) Can Stock Photo Inc./scanrail A Side View A 18,500 psi 16500 psi (b) 3800 psi

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 7.2.5P: The stresses acting on element A on the web of a train rail (sec figure part a) a re found to be...

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The stresses acting on element B on the web of a train rail (see figure part a of Problem 7.2-5) arc found to be 5700 psi in compression in the horizontal direction and 2300 psi in compression in the vertical direction (see figure). Also, shear stresses of magnitude 2500 psi act in the directions shown. Determine the stresses acting on an element oriented at a counterclockwise angle of 50° from the horizontal. Show these stresses on a sketch of an element oriented at this angle.
Solve the preceding problem if the stresses acting on element A on the web of a train rail (see figure part a of Problem 7.2-5) are found to be 40 MPa in tension in the horizontal direction and 160 MPa in compression in the vertical direction. Also. shear stresses of magnitude 54 MPa act in the direct ions shown in the figure. Determine the stresses acting on an element oriented at a counterclockwise angle of 520 from the horizontal. Show these stresses on a sketch of an element oriented at this angle.
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