Ben 60O = '80Tym = 70tyy = 3543Exampledrawn steel 40C8 (S, = 600 N/mm² and S, = 380N/mm?) is shown in Fig.at the free end varies from -50 N to +150 N. Theexpected reliability is 90% and the factor of safetyis 2. The notch sensitivity factor at the fillet is 0.9.Determine the diameter 'd'of the beam at the filletA cantilever beam made of coldThe force P actingcross-section.-150-100- 50 NP=+150 N0.2 d1.5 d44A steel cantilever beam, as shown in Fig. 6.21, is subjected to a transverse load at its end that variesfrom 45 N up to 135 N down as the axial load varies from 110 N (compression) to 450 N (tension).Determine the required diameter at the change of section for infinite life using a factor of safety of 2.The strength properties are as follows:Ultimate strength- 550 MPaYield strength470 MPaEndurance limit275 MPa45 N125 mm110 N 450 N2dd0.2d180 mm135 NThe stress concentrati on factors for bending and axial loads are 1.44 and 1.63 respectively, at thechange of cross-section. Take size factor = 0.85 and surface finish factor = 0.9.[Ans. 12.5 mm]

Syt=380N/mm2Sut=600N/mm2R=90%q=0.9fs=2P=-50N to +150N

Example drawn steel 40C8 (S= 600 N/mm² and S, = 380 N/mm?) is shown in Fig. at the free end varies from -50 N to +150 N. The expected reliability is 90% and the factor of safety is 2. The notch sensitivity factor at the fillet is 0.9. Determine the diameter 'd'of the beam at the fillet A cantilever beam made of cold The force P acting cross-section.

Example drawn steel 40C8 (S= 600 N/mm² and S, = 380 N/mm?) is shown in Fig. at the free end varies from -50 N to +150 N. The expected reliability is 90% and the factor of safety is 2. The notch sensitivity factor at the fillet is 0.9. Determine the diameter 'd'of the beam at the fillet A cantilever beam made of cold The force P acting cross-section.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter11: Columns

Section: Chapter Questions

Problem 11.2.15P: Repeat Problem 11.2-14 using L = 12 ft, ß = 0.25 kips/in., ßRl= 1.5ßL2, and ßR2= 2 ßR1.

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