2. Fastener Pattern Q1 - the geometry below is loaded with the following parameters: - 0.75 " plate thickness (both plates) - Plate Material: Cold Rolled AISI 1020 steel - Sy \( =57 \mathrm{ksi} \), Sut \( =68 \mathrm{ksi} \) - Weld material: E70xx (70 ksi Sut) - Fastener material: Grade 5 steel - Orange lines represent fillet welds, continuous on both long sides of plate - F1 = 3500 lbf - 8 " \( \times 8 \) " hole pattern Determine: a) Required fastener size to achieve a Factor of Safety of 3 on tensile ultimate strength (compare fastener stress to Sut) b) Calculate minimum fillet weld size to support load, and the minimum size you'd actually want to specify for this geometry