A laminated plastic beam of square cross section is built up by gluing together three strips, each 20 mm x 60 mm in cross section (see figure). The beam has a total weight of 4.6 N and is simply supported with span length L = 460 mm. 20 mm 20 mm 60 mm 20 mm 60 mm Considering the weight of the beam (G) calculate the maximum permissible CCW moment M that may be placed at the right support. (a) If the allowable shear stress in the glued joints is 0.3 MPa. Round to the nearest tenth. Mmax = N. m (b) If the allowable bending stress in the plastic is 6 MPa. Round to the nearest hundredth. Mmax =| N.m
A laminated plastic beam of square cross section is built up by gluing together three strips, each 20 mm x 60 mm in cross section (see figure). The beam has a total weight of 4.6 N and is simply supported with span length L = 460 mm. 20 mm 20 mm 60 mm 20 mm 60 mm Considering the weight of the beam (G) calculate the maximum permissible CCW moment M that may be placed at the right support. (a) If the allowable shear stress in the glued joints is 0.3 MPa. Round to the nearest tenth. Mmax = N. m (b) If the allowable bending stress in the plastic is 6 MPa. Round to the nearest hundredth. Mmax =| N.m
Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Barry J. Goodno, James M. Gere
Chapter5: Stresses In Beams (basic Topics)
Section: Chapter Questions
Problem 5.8.5P: Two wood beams, each of rectangular cross section (3.0 in. x 4.0 in., actual dimensions), are glued...
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