A dynamic spring element model for the prediction of longitudinal failure of polymer composites

• Type: Article in International Scientific Journal
• Date: 2019

Authors

Tavares, RP (Author) Other; Otero, F (Author) Other; Baiges, J (Author) Other; Turon, A (Author) Other; Camanho, PP (Author) FEUP

Journal

Title: Computational Materials Science

Vol. 160

Pages: 42-52

ISSN: 0927-0256

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 11 Citations

Scopus - 16 Citations

Other information

Authenticus ID: P-00Q-9MT

DOI: 10.1016/j.commatsci.2018.12.048

Abstract (EN): A spring element model that takes into account the dynamic effects associated with fibre failure in composite materials is presented. The model is implemented in a parallel environment to allow a better performance in the prediction of the complex mechanisms associated with longitudinal tensile failure. The model is used to identify the changes in the stress fields around a broken fibre representing fibre failure as a dynamic phenomenon. In light of these changes in the stress fields, the cluster formation and failure development is analysed and the results are compared with the static spring element model. It is observed that the stress redistribution around a broken fibre is strongly dependent on the dynamic effects and it varies with the material in study, specially if the matrix is considered linear elastic. The changes in local stress redistribution are seen to affect the materials tensile behaviour and cluster formation, being this changes higher for a material with an elastic matrix.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11