Shizuoka University
Ehime University
Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)
Shizuoka University
出版者（英）
Elsevier
雑誌名
Composites. Part A, Applied science and manufacturing
巻
56
ページ
308 - 318
発行年
2014-01
抄録（英）
High-velocity impact damage in CFRP laminates was studied experimentally and numerically. Part I of this study observed and evaluated near-perforation damage in the laminates and characterized the damage pattern experimentally. Part II predicts the extension of high-velocity impact damage based on smoothed particle hydrodynamics (SPH), which facilitates the analysis of large deformations, contact, and separation of objects. A cross-ply laminate was divided into 0 degree and 90 degree layers, and virtual interlayer particles were inserted to express delamination. The damage patterns predicted on the surfaces and cross-sections agreed well with the experiments. The analyzed delamination shape was similar to that resulting from a low-velocity impact, consisting of pairs of fan-shaped delaminations symmetric about the impact point. Finally, the mechanisms of high-velocity impact damage in CFRP laminates are discussed based on the observations and numerical analyses.
Copyright (C)2014, Elsevier. | NOTICE: this is the author's version of a work that was accepted for publication in Composites Part A: Applied Science and Manufacturing. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in PUBLICATION, Volume 56, 2014, DOI:10.1016/j.compositesa.2013.04.012
Characterization of high-velocity impact damage in CFRP laminates: Part II - prediction by smoothed particle hydrodynamics
PA1420009.pdf
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