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Effect of Laminate Thickness on Impact Behavior of Aramid Fiber/vinylester Composites

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Authors
Park, Rohchoon; Jang, Jyongsik
Issue Date
2003
Publisher
Elsevier
Citation
Polymer Testing 22 (2003) 939–946
Abstract
Aramid fiber/vinylester composites were fabricated to investigate the effect of laminate thickness on impact behavior
of the composites. The impact energy and the delamination area of composites were examined as a function of laminate
thickness and surface treatment of aramid fiber. The laminate thickness and surface treatment changed the impact
absorption mode from plate bending stress to local stress. The absorption mechanism of impact energy changed at a
thickness between three-layer composites and four-layer composites. The impact energy of thin laminates was dominated
by a large displacement and delamination area, whereas that of thick laminates was controlled by maximum load. The
trend of total delamination area was similar to that of total impact energy in both untreated and treated composites. In
spite of low delamination area, thick composites exhibited the higher impact energy through increase of maximum load.
ISSN
0142-9418
Language
English
URI
http://hdl.handle.net/10371/49076
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Chemical and Biological Engineering (화학생물공학부)Journal Papers (저널논문_화학생물공학부)
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