Research on Constitutive Equation for Steel Wire Wound Reinforced High-Pressure Hose

Abstract

According to the features of reinforced layer of steel wire wound reinforced high-pressure hose (hereinafter referred to as SRH), 9 classical models for predicting the engineering elastic modulus of reinforced layer of continuous filament reinforced composite material were contrastively analyzed. As a result, Chinese engineering empirical formula should be conformable for predicting the engineering elastic constants of SRH reinforced layer in material normal coordinates. Based on composite microscopic theory and tensor theory, constitutive equation of SRH reinforced layer in structural cylindrical coordinates in three-dimensional case was obtained.