532_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

# 532_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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526 CHAPTER 6 Stresses in Beams (Advanced Topics) Problem 6.4-10 Solve the preceding problem using the following data: W 310 ± 129 section, L ² 1.8 m, P ² 9.5 kN, and a ² 60°. ( Note : See Table E-1b of Appendix E for the dimensions and properties of the beam.) Solution 6.4-10 P ² 9.5 kN L ² 1.8 m a ² 60° W 310 ± 129 I y ² 100 ± 10 6 mm 4 I z ² 308 ± 10 6 mm 4 d ² 318 mm b ² 307 mm B ENDING MOMENTS M y ² P cos( a ) LM y ² 8550 N m M z ² P sin( a ) z ² 14809 N m N EUTRAL AXIS nn b ² 60.6° ; b ² a tan a I z I y tan(90° ³ a ) b b ² 60.6° # # M AXIMUM TENSILE STRESS ( AT POINT A) s max ² 20.8 MPa ; s max ² M y a b 2 b I y ³ M z a ³ d 2 b I z Problem 6.4-11 A cantilever beam of W 12 ± 14 section and length L ²
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