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Large 3-D Deflection And Force Analysis Of Lateral Torsional Buckled Beams, Robert Parley Chase
Large 3-D Deflection And Force Analysis Of Lateral Torsional Buckled Beams, Robert Parley Chase
Theses and Dissertations
This thesis presents research on the force and deflection behavior of beams with rectangular cross-sections undergoing lateral torsional buckling. The large 3-D deflection path of buckling beam tips was closely approximated by circular arcs in two planes. A new chain algorithm element was created from pseudo-rigid-body segments and used in a chain calculation that accurately predicted the force deflection relationship of beams with large 3-D deflections.
Corrugation And Buckling Defects In Wound Rolls, Jonathan A. Wickert, P.M. Lin
Corrugation And Buckling Defects In Wound Rolls, Jonathan A. Wickert, P.M. Lin
Jonathan A. Wickert
Sheet metal, paper, and polymer webs are often stored and processed as large rolls comprising thousands of layers. Depending on the elastic properties of the web material, the roll's dimensions, the type of core, and the winding tension, the stresses that develop within the roll can be sufficiently high to cause local or gross buckling defects to form. For instance, the cylindrical core onto which the web is wound can collapse, a failure mode that is termed "v-buckling." In other cases, while the core might remain intact, a group of layers interior to the roll can wrinkle into a near-sinusoidal …