Evaluation of laser surface irradiation on the mode i fracture toughness of composite joints with CFRP adherends

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Type
Conference Paper
Authors
Tao, Ran cc
Alfano, Marco
Lubineau, Gilles cc
KAUST Department
Composite and Heterogeneous Material Analysis and Simulation Laboratory (COHMAS)
Mechanical Engineering Program
Physical Science and Engineering (PSE) Division
Date
2017-01-01
Permanent link to this record
http://hdl.handle.net/10754/665278

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Abstract
Secondary bonding of cured carbon fiber reinforced polymer (CFRP) laminates using structural adhesives has attracted great attention from the aerospace industry. The most important process step to achieve reliable joints is the execution of a proper surface pre-treatment. In this paper, pulsed CO2 laser irradiation was employed to increase the mode I fracture toughness of CFRP adhesive joints. In order to evaluate the effect of laser irradiation on CFRPs, surface chemistry and morphology were assessed through XPS and SEM analyses. The mode I fracture toughness was determined using the DCB specimen and fracture surfaces were surveyed using optical and SEM.
Publisher
International Committee on Composite Materials
Conference/Event name
21st International Conference on Composite Materials, ICCM 2017
Additional Links
http://iccm-central.org/Proceedings/ICCM21proceedings/papers/4102.pdf
Collections
Conference Papers; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program