707_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

707_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 08Ch08.qxd 9/18/08 11:08 AM Page 701 701 SECTION 8.5 Combined Loadings Solution 8.5-21 W 750 1b Fy 200 1b 2.5 in. t A b2 2 t)2 (a) d 1 in.2 A 6 in. c (b 2 t)4] I (b t)2 0 My (POINT Q) s W A sx s 2 sx + sy A 2 tmax a A txy sx t 0 t sy A a sx a sx sy + s2 20730 psi & MAX SHEAR STRESS s sx + sy s1 s1 sy 0 1 1 b3 8 b 32 1 Fy Q 2 sy 2 2 in. 378 psi tT t tt Mz tT 6000 in.-1b t 4633 psi PRINCIPAL STRESSES s1 s2 2 tmax s1 sy 0 txy 2 sx + sy 2 sx 2 988 psi A b + t2 xy 2 2 ; tmax 10365 psi ; tmax 11354 psi ; Mx Wy1 SHEAR & NORMAL STRESSES AT A s W A My c I s 20730 psi same since element A lies on NA for bending about x-axis b + t2 xy sx ; 18000 in.-1b sy a 2 21719 psi My b + t2 xy sx s2 POINT Q ¿ & FORCE FY sy a ; ENGINE WEIGHT ACTS THROUGH t sy + A A s sx + sy a & MAX SHEAR STRESS 20730 psi ACTS IN Y-DIR tT 4255 psi 2 b + t2 xy MZ USING APPROX. 3-65) s2 (b) 1 in.3 Q tt I (2 t) Fy d 2 b + t2 xy ; 0 b1 sx b + t2 xy 2 2t Mz & NORMAL STRESSES AT A PRINCIPAL STRESSES b THEORY (EQU. SHEAR I b1 TRANSVERSE SHEAR SHEAR DUE TO TORSIONAL MOMENT Wx1 Myc MZ (MAX PROB. #5.10-11) TORSION DUE TO IN WEB-SEE tt 1 in.4 ENGINE WEIGHT ACTS THROUGH X-AXIS Mx 24 in. Q Am y1 6 in. 1 [ b4 12 x1 30 in. b . 2 2 Am I (b FY & 1 in. 8 b SHEAR STRESS DEPENDS ON TRANSVERSE SHEAR DUE TO 2 2 Mz 2 tAm ...
View Full Document

This note was uploaded on 12/22/2011 for the course MEEG 310 taught by Professor Staff during the Fall '11 term at University of Delaware.

Ask a homework question - tutors are online