What is the purpose of notching Izod or Charpy samples?
What will be an ideal response?
One of the important aspects of impact toughness is the tendency of the material to fail through cracking. Cracks often begin at sharp locations as is created when a notch is installed in the part. Therefore, a key reason to notch the sample is to determine the tendency to fail by cracking. Another, perhaps equally important reason, is to provide a point at which failure is likely to occur so that the failure values from one test to another will be less dependent on the initiation of the failure and more dependent on the crack propagation through the material.
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Name the geometric characteristics shown on this drawing.
Refer to Drawing Number 4190487 R0 and answer the following questions.
Which of these is a desired feature of beef cattle?
a. long, trim, deep-sided body c. thinly muscled front legs b. excess fat d. extra hide around the throat
Soils for growing vegetables should be loose, friable, and high in ____________________
Fill in the blank(s) with the appropriate word(s).
"FIM" is an acronym for ____.
A. feature indication maximum B. form illustration maximum C. full indicator movement D. form indicator movement E. none of the above