第一章单元测试
- The characteristics of fail-safe design is （ ）
- Four kinds of possible design situations are as follows （ ）
- The main points of damage tolerance design are as follows （ ）
- Analysis needs to be confirmed by tests. （ ）
- Allowable service life should be less than test or calculated life. （ ）
A:The oldest criterion B:Expected maximum load or stress occur occasionally C:Fracture mechanics analysis and tests D:If one part fails, the system does not fail
答案:If one part fails, the system does not fail
A:Model design B:Equipment design C:Product design D:Design to standard
答案:Model design###Equipment design###Product design###Design to standard
A:Anti-crack measures B:High fracture toughness C:Minimum detectable crack size D:Slow crack propagation
答案:Anti-crack measures###High fracture toughness###Minimum detectable crack size###Slow crack propagation
A:错 B:对
答案:对
A:对 B:错
答案:对
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