Basic Statements 5 Flashcards
When a beam/structure is subjected to bending loading conditions, two types of stresses occur, normal and shear stresses
True - If you don’t know this i suggest you to start studying real hard
When a beam/structure is subjected to axial loading conditions, two types of stresses occur, normal and shear stresses
False - Only normal stresses, however in reality there will also be shear stresses since the beam would get stretched out and shear stresses would occur where the beam gets thinner.
An example of a ship type which is not sensitive to torsion deformation is the container vessel
False - Due to open cross-section large deformations could occur if the structure is not super stiff.
A warping displacement is an out of plane deformation which occurs during torsion loading
True - Think about a paper which you roll into a tube. Apply torsion load, what happens, one edge goes out of the tube and the other goes into the tube
Thin-walled and open cross-sections are influenced by the warping displacements in contrast to solid cross-sections.
False - Solid CS are influenced but not as much as TW
General torsion theory was proposed by Vlasov, while St Venant theory is a special case of Vlasov torsion theory
True - The normal stresses are zero in St Venant due to dFi/dx is constant
During St Venant torsion conditions, only shear stresses occur in the structure
True - The normal stresses are zero in St Venant due to dFi/dx is constant
The shear stress distribution through thickness of a TW open CS structure subjected to St Venant torsion conditions is uniform
False - It will be linear with maximum at the edges