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.
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