Fatigue Life Design of Mechanical Structure答案2023秋

第一章测试

1. The characteristics of fail-safe design is （ ）
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:D
2. Four kinds of possible design situations are as follows （ ）
A:Model design B:Equipment design C:Design to standard D:Product design
答案:ABCD
3. The main points of damage tolerance design are as follows （ ）
A:Slow crack propagation B:Anti-crack measures C:Minimum detectable crack size D:High fracture toughness
答案:ABCD
4. Analysis needs to be confirmed by tests. （ ）
A:错 B:对
答案:B
5. Allowable service life should be less than test or calculated life. （ ）
A:错 B:对
答案:B