An anchor bolt connection secures a wood plate to a foundation wall as shown. The -in-diam...

An anchor bolt connection secures a wood plate to a foundation wall as shown. The -in-diameter steel anchor bolt has a minor thread dimension of 0.31 in diameter. A steel washer with a -in outside diameter and a -in-diameter hole is placed between the bolt nut and the wood plate before the nut on the bolt is tightened. Compressive stress must not exceed 20 000 lb/in2 in the steel and 625 lb/in2 in the wood.

(a) Determine the maximum compressive force that can be exerted on the wood by the washer.

(b) Determine the tensile stress that develops in the threaded area of anchor bolt if the connection is tightened to the maximum compressive force.