{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

619_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

# 619_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

This preview shows pages 1–2. Sign up to view the full content.

SECTION 7.5 Hooke’s Law for Plane Stress 613 Solution 7.5-10 Square plate in plane stress C HANGE IN VOLUME Eq. (7-47): e 1 2 E ( s x + s y ) 183.33 * 10 6 t xy V bt 5.0 MPa V 120 kN s y P y bt 7.5 MPa P y 180 kN s x P x bt 20.0 MPa P x 480 kN v 0.35 (magnesium) E 45 GPa t 40 mm b 600 mm (Increase in volume) S TRAIN ENERGY Eq. (7-50): Substitute numerical values: U uV 0 67.0 N # m 67.0 J ; u 4653 Pa G E 2(1 + ) 16.667 GPa u 1 2 E ( s x 2 + s y 2 2 s x s y ) + t xy 2 2 G ¢ V eV 0 2640 mm 3 ; V 0 b 2 t 14.4 * 10 6 mm 3 Problem 7.5-11 Solve the preceding problem for an aluminum plate with , , , , , , and . V 15 k P y 20 k P x 90 k 0.33 E 10,600 ksi t 1.0 in. b 12 in. Solution 7.5-11 Square plate in plane stress C HANGE IN VOLUME

This preview has intentionally blurred sections. Sign up to view the full version.

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

{[ snackBarMessage ]}