Non-linear creep of layered and composite prismatic beams under pure bending

Abstract

The problem of nonlinear creep of prismatic laminate and composite beam of constant thickness and height at pure bending was first solved for the first time. The hereditary creep theory was used. Non-linearity was modeled by a piecewise linear Prandtl graph. The averaged Voigt and Reuss values of deformation of the composite beam in pure bending were calculated. The effective value of elastic modulus, yield stress and plastic modulus, as well as efficient kernel of material creep of bending beam were determined.