绪论单元测试1. Excess deformation is （ ）
A:Stress corrosion cracking B:Little plasticity C:High energy absorption D:The most common failure mode
答案:D
2. The correct statement of fatigue includes （ ）
A:Constant or variable amplitude B:Loading, uni/multi-axial loading C:Repeated loading D:Crack nucleation/growth
答案:ABCD
3. The contribution of August Wöhler is as follows （ ）
A:Fatigue limit B:S-N Curve C:Multiple fatigue D:Corrosion fatigue
答案:AB
4. Failure due to fatigue, i.e. repeated loading, is the most common cause of mechanical failure. （ ）
A:错 B:对
答案:B
5. Proper fatigue design includes synthesis, analysis and testing. （ ）
A:对 B:错
答案:A
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