1.40 A joint is made by gluing two plywood gussets of thickness t to wood boards. The tensile working stresses are 1200 psi for the plywood and 700 psi for the boards. The working shear stress for the glue is 50 psi. Determine the dimensions b and t so that the joint is as strong as the boards. 12 kN P 1.75 in. b|| b +100 mm P 5.75 in. 12 kN FIG. P1.40 FIG. P1.41 +120 mm-

Structural Analysis
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Chapter2: Loads On Structures
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1.40 A joint is made by gluing two plywood gussets of thickness t to wood boards.
The tensile working stresses are 1200 psi for the plywood and 700 psi for the boards.
The working shear stress for the glue is 50 psi. Determine the dimensions b and t so
that the joint is as strong as the boards.
12 kN
P
1.75 in.
b|| b
+100 mm
P
5.75 in.
12 kN
FIG. P1.40
FIG. P1.41
+120 mm-
Transcribed Image Text:1.40 A joint is made by gluing two plywood gussets of thickness t to wood boards. The tensile working stresses are 1200 psi for the plywood and 700 psi for the boards. The working shear stress for the glue is 50 psi. Determine the dimensions b and t so that the joint is as strong as the boards. 12 kN P 1.75 in. b|| b +100 mm P 5.75 in. 12 kN FIG. P1.40 FIG. P1.41 +120 mm-
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