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Question: e when manufacturing the fuselage of a commuter airplane aluminum...

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(e) When manufacturing the fuselage of a commuter airplane, aluminum plates are adhesively bonded together with lap joints. Because the elastic deformation for a single plate differs from the deformation for two plates in a lap joint, the maximum shear stress in the adhesive is twice as high as the average shear stress. The shear strength of the adhesive is 20 MPa, the tensile strength of the aluminum plates is 95 MPa, and their thickness is 4.0 mm. Calculate the overlapping length needed to make the adhesive joint twice as strong as the aluminum plate.

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