WorksheetsWeek 5 Quiz
Total questions: 13
Worksheet time: 7mins
If deformation disappears completely after unloading, the material is:
Plastic
Elastic
Anisotropic
Isotropic
For isotropic materials, how many independent material constants are needed?
One
Two
Three
Twenty-one
In the stress tensor at a point, how many independent stress components exist in 3D?
Three
Four
Six
Nine
In plane stress solids, stresses in which direction are assumed to be zero?
x-direction
y-direction
z-direction
xy-direction
Truss members are assumed to carry only:
Shear forces
Axial forces
Bending moments
Torsional moments
According to the Euler–Bernoulli beam assumption, plane sections:
Warp after bending
Remain plane and perpendicular to the deformed axis
Remain plane but not perpendicular
Rotate arbitrarily
In plate theory, the classical plate assumption for thin plates is that normals to the mid-plane:
Remain curved after bending
Remain straight and normal to the mid-plane
Rotate randomly after bending
Experience large shear deformation
In static problems, the governing equations of dynamics can be simplified by:
Adding inertia forces
Ignoring damping forces
Dropping dynamic terms
Using anisotropic materials
The stiffness matrix for a truss element is derived from:
Equilibrium equations only
Strain-displacement and constitutive relationships
Experimental results only
Beam bending theory
For a 3D frame element, how many degrees of freedom exist at each node?
2
3
6
12
The moment of inertia of a beam cross-section is used to compute:
Shear stresses
Normal stresses due to bending
Torsional stresses
Poisson’s ratio
In finite element analysis, shape functions relate:
Loads to boundary conditions
Stresses to material properties
Nodal displacements to displacements within the element
External forces to stiffness matrices
For planar truss analysis, the transformation matrix removes which terms from 3D formulations?
x-direction terms
y-direction terms
z-direction terms
Axial terms
