Question

Machine design

  please help!

The component shown is machined from a plate made of AISI 1045 cold drawn steel. If the component is subjected to the cyclic axial loading shown in the figure, what is the minimum thickness this plate should have to at least sustain 20,000 cycles if a factor of safety of 2 is desired? The expected reliability is 90% and the notch sensitivity of the material is 0.85. Use a size factor and fas 0.9. 5t +50 kN 15t

Answer 1

Soluhou St 5o WNN P50 KN Stee Nc ào, ooo Cycles SUT 55 MPa Kevised anduhan α sheAYHu

- 0.Sx 585 se = 292-5MPa. 15t1.5 d. 5t St 0-125 . -- Stx8 5t odt Plate = 0-125 -o-Q65 a u.51 Ka -a Sut) I(585) Ka- o 833

1.8925 「、8725 kJeib Reniedendusana santh t from equ o) 6-3 ト0910 o 234 (1.3)

f-o< Plate thuebug a드 5txt 2. t. 76.76