PSI - Issue 28

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2020) 000–000

www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 28 (2020) 226–233

© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo Abstract This study reviews some approaches employed to evaluate the Stress Intensity Factor (SIF) in structural components with plane cracks. Several experimental and computational methodologies have been practiced to assess the fracture response under different material behaviors. Amongst all, Digital Image Correlation (DIC) and Thermography methods (Thermoelastic Stress Analysis- TSA) were used to monitor the fracture behavior contributing to characterize the SIFs. The applied experimental methods are contactless full field optical measuring system in which they provide deformation fields and the stress variation. Hence, it would be valuable to appraise the performance of numerical formulations; therefore, the Finite Element Analysis (FEA) was considered for validation purpose. Theoretically, it aims at expansion an analytical solution to SIF determination, following the compliance functions together with the stress dead-zone notation. Overall, this review manuscript presents examples focusing on the fracture and SIF characterization resorting to the different material behaviors in accordance with the mentioned techniques. © 2020 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo Keywords: SIF; FEM; DIC; TSA; Dead-zone. 1. Overview There exists a growing trend in the engineering fields to develop methods for the structural integrity monitoring and characterization of in-service mechanical behavior of structures. The rapid progress in recent years of image 1st Virtual European Conference on Fracture New Approaches on the Stress Intensity Factor Characterization - Review Behzad V. Farahani*, Francisco Q. de Melo, Paulo J. Tavares, Pedro M. G. P. Moreira INEGI - Institute of Science and Innovation in Mechanical and Industrial Engineering, Campus da FEUP, R. Dr. Roberto Frias 400, 4200-465 Porto, Portugal

* Corresponding author. Tel.: +351 938096044. E-mail address: behzad.farahani@fe.up.pt

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the European Structural Integrity Society (ESIS) ExCo 10.1016/j.prostr.2020.10.028