Dynamic end effects in an orthotropic strip

Spatial extent of dynamic end effects in an orthotropic semi-infinite strip is investigated within the framework of linear elastodynamic theory. Formulation of the dynamic response of a strip was utilized to examine the effect of frequency of excitation and constitutive properties of the strip on the upper bound on a region affected by end effects. Analysis included examination of materials spanning a wide range of material anisotropy. It was found that frequency has only marginal effect on the extent of dynamic end effects in materials with high degree of orthotropy up to the first cut off frequency. Extremely small extent of end effects was found in strips made of orthotropic material with fibers oriented perpendicular to longitudinal direction of a strip.