2D truss elements
(a) have rotational degrees of freedom.
(b) can transmit axial forces.
(c) cannot resist bending.
(d) always have nonlinear material properties.
3. Modal analysis is
(a) an example of a Finite Element steady-state analysis.
(b) an example of a Finite Element transient analysis.
(c) an example of a Finite Element eigenvalue analysis.
(d) None of the above.
4. In a static stress analysis using truss elements, the elements of the stiffness matrix will
always depend on:
(a) material density.
(b) choice of shape functions.
(c) applied forces.
(d) None of the above.
2.C) Cannot resist bending
The 2D truss is only subject to axial loading
3. C) an example of a finate element Eigen value analysis
In modal analysis we won't apply any forces. And it not dependent on time.
We do modal analysis to find natural frequencies and modal shapes.
Eigen value are modal frequencies and Eigen vectors are mode shapes.
4. b)choice of shape function.
Shape function helps to find displacement. Truss undergo only deformation and no bending. Hence appropriate shape functions.
2D truss elements (a) have rotational degrees of freedom. (b) can transmit axial forces. (c) cannot...
26.23 The moment distribution method in structural analysis can be treated as: Displacement method Force method Flexibility method First order approximate method 26.24 The method of moment distribution in structural analysis is: An approximate one An interative method An exact one None of the above 26.25 The strain energy method in structural analysis is based on the minimization of the energy with respect to: Strains Force Stress Displacement 26.26 The minimization of potential energy in structural analysis results in: Equilibrium...