美国麻省理工大学：《结构分析与设计技术》教学资源（讲义）CQ15

Concept question What new element is Castigliano s Theorem introducing? 1. None, it's just a particular case of the PMPE 2. It's a totally different principle that allows to obtain solutions of elasticity problems with unprecedented accuracy and efficiency in- cluding relativistic effects 3. Fi=au, when U can be expressed in terms of point displacements 4. None, It's just a useful tool to quickly ob- tain answers to specific questions such as What't the displacement at a point? with out having to obtain the whole solution to the structural problem None of the above statements 12345 All of the above statements all of the above statements but Statement( DKDU

++++ ++++ ++++ ++++ ++++ Concept Question ++++ ++++ ++++ ++++ ++++ What new element is Castigliano’s Theorem introducing? 1. None, it’s just a particular case of the PMPE. 2. It’s a totally different principle that allows to obtain solutions of elasticity problems with unprecedented accuracy and efficiency in￾cluding relativistic effects. ∂U 3. Fi = ∂ui , when U can be expressed in terms of point displacements. 4. None, It’s just a useful tool to quickly ob￾tain answers to specific questions such as: “What’t the displacement at a point?” with￾out having to obtain the whole solution to the structural problem 1. ++++ None of the above statements 2. ++++ All of the above statements 3. ++++ All of the above statements but (2) 4. ++++ Statement (4) 5. ++++ DKDU

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