Eventos Anais de eventos
MECSOL 2019
7th International Symposium on Solid Mechanics
A Stress/Strain-Driven Homogenization Approach for the Uniaxial Analysis of Fibrous Soft Tissues
Submission Author:
Thiago André Carniel , SC
Co-Authors:
Mauricio Lazzari, Thiago André Carniel, Eduardo Fancello
Presenter: Mauricio Lazzari
doi://10.26678/ABCM.MECSOL2019.MSL19-0105
Abstract
Present manuscript provides a homogenization approach for the analyses of fibrous soft biological tissues. Since tensile tests are broadly applied to assess the mechanical responses of such materials, a proper multiscale boundary condition driven by strain and stress is proposed to account for the macroscopic constraints resulting from the macroscopic uniaxial stress condition. The proposed numerical strategy is consistently framed within a variational multiscale theory based on representative volume elements (RVE) and formulated at finite strains. A tensile test performed on a numerical specimen larger than the RVE is proposed as a reference solution. The numerical results point out that the present approach predicts with great accuracy not only the homogenized quantities but also the microscopic kinematic fields.
Keywords
multiscale, Homogenization, Finite Element Method, biological soft tissues
