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

Elements Of Electromagnetics
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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.
M.
t20 mm
t20 mm 60 mm
20 mm
60 mm
Considering the weight of the beam (9) 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
Transcribed Image Text: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. M. t20 mm t20 mm 60 mm 20 mm 60 mm Considering the weight of the beam (9) 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
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