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2. (15 pts) A tension member made of 18-Ni maraging steel (air melted), (properties in table 8.1), has a length of 1200 mm, a width of 100 mm, and a thickness of 15 mm. It may have a through thickness edge crack that measures 15mm in length as shown in figure 8.12(c). What tension force P can be allowed for a safety factor against brittle fracture in stress (%) of 3.0?
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