Calculation of damage accumulation taking into account changes in material characteristics

Abstract

One of the important issues in the study of composite materials are microdefects and their accumulation in the binder. Cracks that occur in the transverse directions of the layers are considered to be the most common macrodefect. During cracking, the elastic modulus and shear modulus decrease. This article discusses the issue of obtaining calculation formulas that take into account the accumulation of damage, taking into account cracks in the layers and interlayer cracks on the example of the wing joint with the center section.