A meshless method in the non-local constitutive damage models

• Type: Article in International Conference Proceedings Book
• Date: 2016

Authors

Farahani, BV (Author) Other; F.M. Andrade Pires (Author) FEUP; Moreira, PMGP (Author) Other; Jorge Belinha (Author) FEUP

Conference proceedings International

Title: XV PORTUGUESE CONFERENCE ON FRACTURE, PCF 2016

Pages: 226-233

15th Portuguese Conference on Fracture (PCF)

Paco de Arcos, PORTUGAL, FEB 10-12, 2016

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 8 Citations

Other information

Authenticus ID: P-00M-7Z4

DOI: 10.1016/j.prostr.2016.02.031

Abstract (EN): The radial point interpolation method (REIM), as an advanced discretization approach, is used to analyze concrete structures assuming a non-linear continuum damage model. The theoretical basis of the material, damage characteristics and the computational procedure are presented. The elastic model is extended with a non-local damage formulation for compressive stress state from the Helmholtz free energy function in relation to the damage energy release. The predictive ability of the non local model will be compared with the local solution, which is inappropriate whenever strong strain softening is encountered. Due to the presence of damage, the Newton-Raphson non-linear algorithm is employed, creating a fictitious pseudo-time stepping scheme. The performance of the proposed model is verified with an experimental benchmark available in the literature.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8