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01-01ChapGere.0015 - × 10 6 psi 50,000 psi 0.00165 0.1...

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SECTION 1.3 Mechanical Properties of Materials 15 Solution 1.3-7 Tensile test of high-strength steel d 0 0.505 in. L 0 2.00 in. C ONVENTIONAL STRESS AND STRAIN Load P Elongation Stress (lb) (in.) (psi) Strain e 1,000 0.0002 5,000 0.00010 2,000 0.0006 10,000 0.00030 6,000 0.0019 30,000 0.00100 10,000 0.0033 50,000 0.00165 12,000 0.0039 60,000 0.00195 12,900 0.0043 64,500 0.00215 13,400 0.0047 67,000 0.00235 13,600 0.0054 68,000 0.00270 13,800 0.0063 69,000 0.00315 14,000 0.0090 70,000 0.00450 14,400 0.0102 72,000 0.00510 15,200 0.0130 76,000 0.00650 16,800 0.0230 84,000 0.01150 18,400 0.0336 92,000 0.01680 20,000 0.0507 100,000 0.02535 22,400 0.1108 112,000 0.05540 22,600 Fracture 113,000 s P A 0 e L 0 A 0 d 0 2 4 0.200 in. 2 150,000 100,000 50,000 0 0.0200 0.0400 0.0600 Stress (psi) Strain 70,000 60,000 50,000 0 0.0020 0.0040 Stress (psi) Strain
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Unformatted text preview: × 10 6 psi 50,000 psi 0.00165 0.1% pffset s YP ≈ 69,000 psi s PL ≈ 65,000 psi (0.1% offset) s YP s PL S TRESS-STRAIN DIAGRAM E NLARGEMENT OF PART OF THE STRESS-STRAIN CURVE R ESULTS Proportional limit < 65,000 psi Modulus of elasticity (slope) < 30 3 10 6 psi Yield stress at 0.1% offset < 69,000 psi Ultimate stress (maximum stress) < 113,000 psi Percent elongation in 2.00 in. Percent reduction in area 5 31% 5 0.200 in. 2 2 p 4 (0.42 in.) 2 0.200 in. 2 (100) 5 A 2 A 1 A (100) 5 0.12 in. 2.00 in. (100) 5 6% 5 L 1 2 L L (100) A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
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