and also find the fillet radius(r) Take theoretical stress concentration factor as 2.5. Also find out actual stress concentration factor if the notch Sensitivity is 0.7.
a) A notched rectangular bar as shown in figure, subjected to a axial loading of 300 kN and the maximum stress of 1300 MPa. Find out the thickness (t) and width (w) of the plate if width is taken as 3.75 times of thickness and also find the fillet radius(r) Take theoretical stress concentration factor as 2.5. Also find out actual stress concentration factor if the notch Sensitivity is 0.7.
b) State the reason for the following.
(i) Providing a number of small notches rather than a long one ---
(ii) Crack initiation ----
(iii) Crack propagation ---
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