Numerical and experimental characterization of high-speed impact damage in CFRP unidirectional and cross-ply laminates

K. Ogi, S. Yashiro, M. Takahashi, A. Yoshimura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper aims at characterizing the high-speed impact damage behavior in CFRP unidirectional (UD) and cross-ply (CP) laminates. First, high-speed (~ 400 m/s) impact damage was introduced by collision of a flying steel sphere (projectile) to CFRP plates with the use of an electric heat gun. The surface and internal damages of the CFRP specimens were observed by using optical microscopy together with radiography. The damage process model was then established on the basis of the experimental result. Next, the dynamic finite element analysis was performed to simulate the damage process. Cohesive elements were introduced in the analysis to express the initiation and propagation of delamination while the maximum stress fracture criteria were employed to express another type of damage such as tensile, compressive and shear failure of the elements. Finally, the simulation was compared with the experimental results to understand the damage evolution mechanism.

Original languageEnglish
Title of host publication7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
PublisherACCM-7 Organizing Committee
Pages261-264
Number of pages4
ISBN (Print)9781632660756
Publication statusPublished - Jan 1 2010
Externally publishedYes
Event7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010 - Taipei, Taiwan, Province of China
Duration: Nov 15 2010Nov 18 2010

Publication series

Name7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
Volume1

Other

Other7th Asian-Australasian Conference on Composite Materials 2010, ACCM 2010
CountryTaiwan, Province of China
CityTaipei
Period11/15/1011/18/10

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

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