02-07ChapGere.0002 - c 5 b 2 d 5 48mm d / b 5 K < 2.51 s...

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SECTION 2.10 Stress Concentrations 161 Problem 2.10-2 The flat bars shown in parts (a) and (b) of the figure are subjected to tensile forces P 5 2.5 kN. Each bar has thickness t 5 5.0 mm. (a) For the bar with a circular hole, determine the maximum stresses for hole diameters d 5 12 mm and d 5 20 mm if the width b 5 60 mm. (b) For the stepped bar with shoulder fillets, determine the maximum stresses for fillet radii R 5 6 mm and R 5 10 mm if the bar widths are b 5 60 mm and c 5 40 mm. Solution 2.10-2 Flat bars in tension P P P P b d b (a) (b) c R = radius P 5 2.5kN t 5 5.0mm (a) B AR WITH CIRCULAR HOLE ( b 5 60mm) Obtain K from Fig. 2-63 F OR d 5 12mm:
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Unformatted text preview: c 5 b 2 d 5 48mm d / b 5 K < 2.51 s max 5 K s nom < F OR d 5 20mm: c 5 b 2 d 5 40mm d/b 5 K < 2.31 s max 5 K s nom < 29 MPa 1 3 s nom 5 P ct 5 2.5 kN (40 mm)(5 mm) 5 12.50 MPa 26 MPa 1 5 s nom 5 P ct 5 2.5 kN (48 mm)(5 mm) 5 10.42 MPa (b) S TEPPED BAR WITH SHOULDER FILLETS b 5 60mm c 5 40mm; Obtain K from Fig. 2-64 F OR R 5 6 mm: R/c 5 0.15 b/c 5 1.5 K < 2.00 s max 5 K s nom < F OR R 5 10mm: R/c 5 0.25 b/c 5 1.5 K < 1.75 s max 5 K s nom < 22 MPa 25 MPa s nom 5 P ct 5 2.5 kN (40 mm)(5 mm) 5 12.50 MPa A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
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This note was uploaded on 09/20/2009 for the course COE 3001 taught by Professor Armanios during the Spring '08 term at Georgia Institute of Technology.

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