A tension member in service has been inspected and a fatigue crack has been discovered as shown in sketch f. A proposed solution is to drill a hole at the tip of the crack, the intent being to reduce the stress concentration at the crack tip. The material is 30-mm-thick annealed AISI 1040 medium carbon steel, and was produced through forging. If the load is a completely reversing 15 kN and the original design is as shown,
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A tension member in service has been inspected and afatigue crack has been discovered as shown in sketch f.A proposed solution is to drill a hole at the tip of thecrack, the intent being to reduce the ...