Question

3) A machine finished bracket is clamped between rigid plates and subjected to loading as shown. a) Find factor of safety for fatigue failure. b) Will the part has infinite life? c) If the beam has to last for 10 cycles what modifications will you do to improve performance Assume a reliability factor of 99.9%. Dimensions are given below. Ignore stress concentration due to hole near the beam tip (stresses there are low). b- 1 in d- 0.75 in. D-0.94 in r=0.25 in, Soo -n or -soo hs a- 5 in I=6in. 6in k, a 뇟 toin

Answer 1

meau ba -0.26 eT2 が7 0.862. + 862 127-1

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