Dr. Levert Problem No. 2: (50 points) Grade: Y N or Bonus (Please circle) applied repeatedly vertically up and then down

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Dr Levert Problem No 2 50 Points Grade Y N Or Bonus Please Circle Applied Repeatedly Vertically Up And Then Down 1 (39.79 KiB) Viewed 29 times

Dr. Levert Problem No. 2: (50 points) Grade: Y N or Bonus (Please circle) applied repeatedly vertically up and then down at the end of the beam - for 10 cycles. This cyclic load will generate an alternating bending stress in the beam at its base, A. The beam's material The beam shown below is being used as a flexure for an instrument mount. A cyclic 15 N load is properties are given below. From this mean bending stress, find the maximum allowable mass that this mean bending stress could Apply the Goodman Diagram to find the maximum allowable mean bending stress in the beam at A. support 10mm Imm 20 MM F = 1154 Schematic Diagram - Not to Scale - AISI 4140 heat treated steel properties: Yield Strength - 172 ksi=1185 MPa Ultimate Tensile Strength - 180 ksi - 1240 MPa