An anisotropic, brittle damage model for finite strains with a generic damage tensor regularization

التفاصيل البيبلوغرافية
العنوان: An anisotropic, brittle damage model for finite strains with a generic damage tensor regularization
المؤلفون: van der Velden, Tim, Reese, Stefanie, Holthusen, Hagen, Brepols, Tim
سنة النشر: 2024
المجموعة: Computer Science
مصطلحات موضوعية: Computer Science - Computational Engineering, Finance, and Science
الوصف: This paper establishes a universal framework for the nonlocal modeling of anisotropic damage at finite strains. By the combination of two recent works, the new framework allows for the flexible incorporation of different established hyperelastic finite strain material formulations into anisotropic damage whilst ensuring mesh-independent results by employing a generic set of micromorphic gradient-extensions. First, the anisotropic damage model, generally satisfying the damage growth criterion, is investigated for the specific choice of a Neo-Hookean material on a single element. Next, the model is applied with different gradient-extensions in structural simulations of an asymmetrically notched specimen to identify an efficient choice in the form of a volumetric-deviatoric regularization. Thereafter, the universal framework, which is without loss of generality here specified for a Neo-Hookean material with a volumetric-deviatoric gradient-extension, successfully serves for the complex simulation of a pressure loaded rotor blade. After acceptance of the manuscript, we make the codes of the material subroutines accessible to the public at https://doi.org/10.5281/zenodo.11171630.
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2408.06140
رقم الأكسشن: edsarx.2408.06140
قاعدة البيانات: arXiv