Szukana fraza: [Abstract = "The new material has properties dependent on the base materials properties and their proportions. Digital materials tensile characteristics are often non\-linear and qualify to be described by hyperelastic materials models. The identification was conducted based on the results of tensile tests models, its various degrees coefficients of the polynomials to various degrees coefficients of the polynomials. The Drucker`s stability criterion was also examined. Fourteen different materials were analyzed."]