美国麻省理工大学：《结构分析与设计技术》教学资源（讲义）CQ19

Concept Question UU U U 3 U U- U e=3 The correct global local node mapping for the quadratic element mesh in the figure is U2=U2e,U3=U2e+1 2.Ue=U. 3e+i-17 Statement (1 Statements(1)and 3) Statement(2 Statement 3) DKDU

++++ ++++ ++++ ++++ ++++ Concept Question ++++ ++++ ++++ ++++ ++++ 1 2 3 4 5 6 7 8 9 10 11 12 −−− U U U U U U U U U U U U −−− e=1 e=2 e=3 e=4 e=5 e=6 U U U 1 2 3 2 2 2 U U U 1 2 3 4 4 4 U U U 1 2 3 4 4 4 U U U 1 2 3 4 4 4 U U U 1 2 3 3 3 3 U U U 1 2 3 1 1 1 The correct global/local node mapping for the quadratic element mesh in the figure is: 1. U1 e = U2e−1, U2 e = U2e, U3 e = U2e+1, 2. Ui e = U3e+i−17 3. Ui e = U2e+i−2 • ++++ Statement (1) • ++++ Statements (1) and (3) • ++++ Statement (2) • ++++ Statement (3) • ++++ DKDU

The correct answer is

The correct answer is ++++