Homework06 - with a minimum yield strength of 380 MPa. Each...

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530.215 MECHANICS-BASED DESIGN Homework VI Due March. 27, 2009 1. Juvinall, Problem 5.23 2. Juvinall, Problem 5.24 3. Juvinall, Problem 5.25 4. Juvinall, Problem 5.26 5. Juvinall, Problem 5.27 6. The figure shows a schematic drawing of a vehicular jack that is to be designed to support a maximum mass of 400 kg based on the use of a design factor n d = 2.50. The opposite-handed threads on the two ends of the screw are cut to allow the link angle to vary from 15 o to 70 o . The links are to be machined from AISI 1020 hot-rolled steel bars
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Unformatted text preview: with a minimum yield strength of 380 MPa. Each of the four links is to consist of two bars, one on each side of the central bearings. The bars are to be 300 mm long and have a bar width of 25 mm. The pinned ends are to be designed to secure an end-condition constant of at least C =1.4 for out-of-plane buckling. Find a suitable preferred thickness and the resulting factor of safety for this thickness....
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This note was uploaded on 09/22/2009 for the course MECH EN.530.101 taught by Professor Okamura during the Spring '09 term at Johns Hopkins.

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