239_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

239_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: Sec_2.8-2.12.qxd 9/25/08 11:44 AM Page 233 SECTION 2.11 Nonlinear Behavior (Changes in Lengths of Bars) 233 Solution 2.11-3 Copper bar in tension (b) ALLOWABLE LOAD P Max. elongation Max. stress 0.25 in. max 40 ksi max Based upon elongation: L 32 in. d 0.75 in. max 2 A pd 4 0.4418 in.2 smax (a) STRESS-STRAIN DIAGRAM s 18,000 1 + 300 dmax L 0.25 in. 32 in. 18,000 max 1 + 300 max 0.007813 42.06 ksi BASED UPON STRESS: 0… … 0.03 (s ksi) max 40 ksi Stress governs. P max A (40 ksi)(0.4418 in.2) 17.7 k Problem 2.11-4 A prismatic bar in tension has length L 2.0 m and cross-sectional area A 249 mm2. The material of the bar has the stressstrain curve shown in the figure. Determine the elongation of the bar for each of the following axial loads: P 10 kN, 20 kN, 30 kN, 40 kN, and 45 kN. From these results, plot a diagram of load P versus elongation (load-displacement diagram). ; 200 s (MPa) 100 0 0 0.005 e 0.010 ...
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