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Stress concentration at points around elliptic openings in in-plane stressed multilayer orthotropic plates
Vladan Veličković
The paper discusses the calculation of stress at points along the elliptic opening contour in an in-plane stressed infinite orthotropic plate with two orthotropy axes. The stress dependence on material elasticity characteristics and a multilayer plate stacking sequence as well as on a position of the ellipse semi-axes for prescribed stress conditions has been presented by numerical examples while the calculation results have been illustrated by diagrams and numeric data. The drawn conclusions pointing out a danger of stress concentration and orthotropy effects can be very useful in engineering practice.
Key
words: stress concentration, orthotropic
plate, plane stress state, elliptic opening, multilayer plate. |