Enhanced transformation field analysis (E-TFA), recently proposed for reduced-order modeling, is here formulated for and applied to multiscale analysis. The approach is able to reproduce a highly complex nonlinear macroscale behavior, resulting from a microstructure with cohesive interfaces embedded in an elasto-plastic bulk. E-TFA features a consistent tangent matrix in its solution procedure, which enables a straightforward definition of the upscaled tangent stiffness tensor. Numerical tests show that, compared to FE (Formula presented.), the proposed approach yields accurate solutions at a lower computational cost.
Mishra, A., Carrara, P., Marfia, S., Sacco, E., De Lorenzis, L. (2024). Multiscale enhanced non‐uniform transformation field analysis. INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 125(16) [10.1002/nme.7501].
Multiscale enhanced non‐uniform transformation field analysis
Marfia, S.;
2024-01-01
Abstract
Enhanced transformation field analysis (E-TFA), recently proposed for reduced-order modeling, is here formulated for and applied to multiscale analysis. The approach is able to reproduce a highly complex nonlinear macroscale behavior, resulting from a microstructure with cohesive interfaces embedded in an elasto-plastic bulk. E-TFA features a consistent tangent matrix in its solution procedure, which enables a straightforward definition of the upscaled tangent stiffness tensor. Numerical tests show that, compared to FE (Formula presented.), the proposed approach yields accurate solutions at a lower computational cost.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
