Improved hyperelastic model for simulating the forming of biaxial braided fabrics

The complex deformation behavior during preforming of composite reinforcements can be effectively predicted by numerical simulation. Most numerical studies generally concern orthogonally woven fabrics. The present work proposes a hyperelastic constitutive model to characterize the anisotropic mechan...

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Bibliographic Details
Published inComposite structures Vol. 321; p. 117263
Main Authors Li, Jinlei, Hamila, Nahiène, Guzman-Maldonado, Eduardo, L'Hostis, Gildas, Wang, Peng
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.10.2023
Subjects
Braided fabrics
Forming
Hyperelastic model
Numerical simulation
Textile composites
Textile composites
Numerical simulation
Forming
Braided fabrics
Hyperelastic model
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Summary:The complex deformation behavior during preforming of composite reinforcements can be effectively predicted by numerical simulation. Most numerical studies generally concern orthogonally woven fabrics. The present work proposes a hyperelastic constitutive model to characterize the anisotropic mechanical properties of non-orthogonal braided reinforcements to simulate the preforming process. Based on the deformation modes, the strain energy was defined by corresponding specific invariants. The coefficients of the hyperelastic constitutive law were identified in the case of non-orthogonal fabrics thanks to the establishment of an energetic model between the second Kirchhoff stress tensor and the tensile load. The constitutive law and energetic model were then validated by means of comparison with the bias-extension test and hemispherical forming test.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2023.117263