4. Two wooden boards are to be joined by splice plates that will be fully glued...

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4. Two wooden boards are to be joined by splice plates that will be fully glued onto the contact surfaces, as shown in the figure. The glue to be used can safely provide a shear strength of 130 psi. Determine the smallest allowable length L that can be used for the splice plates for an applied load of P = 10,000 lb. The width of the boards is w = 7 in. Note that a gap of a = 0.4 in. is required between boards (1) and (2). P e W a P 4. Two wooden boards are to be joined by splice plates that will be fully glued onto the contact surfaces, as shown in the figure. The glue to be used can safely provide a shear strength of 130 psi. Determine the smallest allowable length L that can be used for the splice plates for an applied load of P = 10,000 lb. The width of the boards is w = 7 in. Note that a gap of a = 0.4 in. is required between boards (1) and (2). P e W a P