Describe the characteristic features of a fatigue fracture surface. How does the appearance of a fatigue failure differ from a monotonic failure?
The appearance of fatigue failure is different from monotonic failure in a way that the fatigue failure surface has the non uniform textures while the monotonic failure surface has the uniform texture.
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Describe the characteristic features of a fatigue fracture surface. How does the appearance of a fatigue...
Question 9 (12 marks) a) Both beachmarks and striations are fatigue fracture surface features that have similar appearance, however, they striations and beachmarks in terms of (1) size and (2) origin, respectively. (4 marks) are different. Briefly explain the difference between fatigue b) List four measures that may be taken to increase the resistance to fatigue of a metal alloy. (4 marks) The impact test (or Charpy test) can be used to determine whether or not a material experiences c)...
Q3. Describe with sketches an intergranular fracture and a fatigue fracture and the reasons of their appearance. Explain with materials science and engineering knowledge discussed in the class through Zoom (10 points)
why do beach marks on a fracture surface imply fatigue failure? Do all samples failed by fatigue have beach marks on fracture surface, and why?
Question 18 2 pts As discussed in class, fracture surfaces exhibit distinct characteristic features for different failure modes. By examining the following fracture surfaces, which one does NOT belong to ductile fracture? BOV Keda T as
please make sure it is correct A cup and cone shape of the fracture surface for a tension tested steel sample indicates this mode of failure: Mix Mode 01 oll Fatigue Mode O III Pure ductile Mode IV. Pure Brittle Mode
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11. What would the following features on the fractured surface face of a broken shaft tell you about the mode of failure and the levels of stress that that shaft experienced? (a) ratchet marks (b) beach marks (c) size of final fracture area (7 marks)
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