Interlaminar Fracture Characterization of a Carbon-Epoxy Composite in Pure Mode II

• Type: Article in International Conference Proceedings Book
• Date: 2010

Authors

Campilho, RDSG (Author) Other; de Moura, MFSF (Author) FEUP; Pinto, AMG (Author) Other; Ramantani, DA (Author) Other

Conference proceedings International

Title: ADVANCED MATERIALS FORUM V, PT 1 AND 2

Pages: 1518-1524

5th International Materials Symposium/14th Conference of the Sociedade-Portuguesa-de-Materiais

Lisbon, PORTUGAL, APR 05-08, 2009

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 4 Citations

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-003-9YR

DOI: 10.4028/www.scientific.net/msf.636-637.1518

Abstract (EN): The interlaminar fracture toughness in pure mode II (G(IIc)) of a Carbon-Fibre Reinforced Plastic (CFRP) composite is characterized experimentally and numerically in this work, using the End-Notched Flexure (ENF) fracture characterization test. The value of G(IIc) was extracted by a new data reduction scheme avoiding the crack length measurement, named Compliance-Based Beam Method (CBBM). This method eliminates the crack measurement errors, which can be non-negligible, and reflect on the accuracy of the fracture energy calculations. Moreover, it accounts for the Fracture Process Zone (FPZ) effects. A numerical study using the Finite Element Method (FEM) and a triangular cohesive damage model, implemented within interface finite elements and based on the indirect use of Fracture Mechanics, was performed to evaluate the suitability of the CBBM to obtain G(IIc). This was performed comparing the input values of G(IIc) in the numerical models with the ones resulting from the application of the CBBM to the numerical load-displacement (P-delta) curve. In this numerical study, the Compliance Calibration Method (CCM) was also used to extract G(IIc), for comparison purposes.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7