A Modified Constitutive Model for Isotropic Hyperelastic Polymeric Materials and Its Parameter Identification.

ABSTRACT: Given the importance of hyperelastic constitutive models in the design of engineering components, researchers have been developing the improved and new constitutive models in search of a more accurate and even universal performance. Here, a modified hyperelastic constitutive model based on the Yeoh model is proposed to improve its prediction performance for multiaxial deformation of hyperelastic polymeric materials while retaining the advantages of the original Yeoh model. The modified constitutive model has one more correction term than the original model. The specific form of the correction term is a composite function based on a power function represented by the principal stretches, which is derived from the corresponding residual strain energy when the Yeoh model predicts the equibiaxi

SUBMITTER: Wang W 

PROVIDER: S-EPMC10421088 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature