Problems for Chapter 9


Modeling Material Failure





9.1.  Overview of Failure Mechanisms



9.1.1.        Summarize the main differences between a ductile and a brittle material.  List a few examples of each.


9.1.2.        What is the difference between a static fatigue failure and a cyclic fatigue failure?


9.1.3.        Explain what is meant by a plastic instability, and explain the role of plastic instability in causing failure


9.1.4.        Explain the difference between `High cycle fatigue’ and `Low cycle fatigue’


9.1.5.        Summarize the main features and mechanisms of material failure under cyclic loading.  List variables that may influence fatigue life.




(c) A.F. Bower, 2008
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