Influence of Hole Distance on Low Velocity Impact Damage

• Type: Article in International Scientific Journal
• Date: 2018

Authors

Marcelo F. S. F. de Moura (Author) FEUP; P. N. B. Reis (Author) Other; R. A. M. Santos (Author) Other; Filipe G. A. Silva (Author) Other

Journal

Title: Fibers and Polymers

Vol. 19

Pages: 2574-2580

ISSN: 1229-9197

Publisher: KOREAN FIBER SOCIETY

Indexing

ISI Web of Knowledge - 0 Citations

ISI Web of Science

Scopus - 1 Citation

INSPEC

Scientific classification

CORDIS: Technological sciences > Engineering > Mechanical engineering

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-00Q-3E8

DOI: 10.1007/s12221-018-8376-8

Abstract (EN): This work addresses the influence of the distance between a hole and the point of impact on low velocity impact damage on cross-ply carbon-epoxy laminates. Experimental tests were performed on plates without and with holes located at different distances relatively to impact point. Internal damage was assessed by means of the C-Scan technique in order to identify the influence of holes on induced internal damage. A three-dimensional numerical analysis including cohesive zone modelling was performed to evaluate the damage mechanism and to verify how it is affected by the holes distance. It was verified that a hole at a given distance from the impact point induces asymmetric damage, whose profile and size depend on the referred distance. On the other hand, symmetrical damage outline was obtained for a plate without hole and a plate with a centred hole. The model captures accurately the essence of the damage phenomenon and provided a thorough insight about the interaction of the hole presence on damage pattern.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7