The load history shown in the Fig. 1 is repeatedly applied to a cantilever (beam, no rotation) made of hot rolled 4340 (HB 243) steel. The geometry, dimensions and the location of the loading force F are shown in Fig. 2. Use stress-life method to solve how many times can this history be applied before failure. Explain all steps and assumptions. Submission deadline is 3.11.2014 at 14:00. 𝐹 𝑟 = 6 𝑚𝑚 3 1 5 3 7 𝑟 = 3 𝑚𝑚 9 1.5 11 13 15 𝐹 [kN] 50 -3.0 -4.5 46 48 10 12 14 2 4 6 8 Fig. 1 Loading history ∅ = 100 𝑚𝑚 ∅ = 60 𝑚𝑚 ∅ = 30 𝑚𝑚 45 47 49 60 𝑚𝑚 100 𝑚𝑚 Fig. 2 Geometry
© Copyright 2024 ExpyDoc