BACKGROUND Knee joint sagittal plane forces are a proposed mechanism of anterior cruciate ligament injury during sport movements such as sidestep cutting. Ligament force magnitudes for these movements however, remain unknown. The need to examine injury-causing events suggests elucidation via model-based investigations is possible. Using this approach, the current study determined whether sagitt...

Simple methods of finding the transient and steady state stick zones for frictional contacts subject to varying normal shear forces are discussed. Particular emphasis is given Hertzian contact because algebra very simple this geometry, but results may be carried over any other geometry that can solved within framework half plane theory, including widely-occurring flat with radiused edges.

In this study, nineteen 3-ply laminated glass beams of 1.0 m span with different and interlayer types were tested to failure. Annealed generally failed in shear facture, whereas toughened displayed lateral-torsional buckling (LTB) response, a bow-shaped out-of-plane deflected shape significant bending. The experimental failure loads had scatter for nominally similar beams, highlighting the vari...

In this paper, the effect of elastic foundation on the out of plane displacement of functionally graded circular plates using differential transform method is presented. Differential transform method is a semi-analytical-numerical solution technique that is capable to solve various types of differential equations. Using this method, governing differential equations are transformed into recursiv...