A Novel Analytical Solution on the Mode I SIF for Finite Plates with Slanted Cracks

• Type: Article in International Conference Proceedings Book
• Date: 2020

Authors

Farahani, BV (Author) Other; de Melo, FQ (Author) Other; Tavares, PJ (Author) Other; Moreira, PMGP (Author) Other

Conference proceedings International

Title: 1ST VIRTUAL EUROPEAN CONFERENCE ON FRACTURE - VECF1

Pages: 218-225

1st European-Structural-Integrity-Society (ESIS) Virtual European Conference on Fracture (ECF)

ELECTR NETWORK, JUN 29-JUL 01, 2020

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Authenticus ID: P-00T-CZH

DOI: 10.1016/j.prostr.2020.10.027

Abstract (EN): This contribution addresses a novel analytical procedure to evaluate the Stress Intensity Factors (SIF) of slant notches existing in flat plates employing the concept of the stress dead-zone. The compliance function formulation is extended to the Linear Elastic Fracture Mechanics (LEFM) to assess the fracture characterization. Therefore, the hypothesis is established for centrally oriented cracked specimens with various slant angles. To fulfil the study objectives, a hybrid experimental/computational study resorting to Digital Image Correlation (DIC) and Finite Element Method (FEM) is undertaken, aiming at the monitoring of the component deformation around the cracked region and subsequent SIF determination. A comparison is drawn on the SIF results extracted via the dead-zone concept, experimental and numerical studies to the reference solution, available in the literature. Besides, as a further investigation, the stress dead-zone region, which was analytically characterized, is also numerically verified through FEM. Encouraging results have been obtained which validate the dead-zone hypothesis for slant-cracked plates. (C) 2020 The Authors. Published by Elsevier B.V.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8