오제훈
2019-07-31T07:15:21Z
2019-07-31T07:15:21Z
2006-05
JOURNAL OF COMPOSITE MATERIALS, v. 40, No. 9, Page. 759-778
0021-9983
1530-793X
https://journals.sagepub.com/doi/abs/10.1177/0021998305055546
https://repository.hanyang.ac.kr/handle/20.500.11754/108065
The micromechanical approach was used to investigate the interfacial strain distributions of a unidirectional composite under transverse loading in which fibers were usually found to be randomly packed. Representative volume elements (RVEs) for the analysis were composed of both periodic fiber arrays, such as a square array and a hexagonal array, and a random fiber array. The finite element analysis was performed to analyze the normal, tangential, and shear strains at the interface. In order to verify the RVE for describing a random fiber array, the generated RVE was statistically compared with the one constructed from typical images of a transverse cross-section of a unidirectional composite. Since the strain distributions at the interface experienced periodic characteristics along with its circumference, the Fourier series approximation with proper coefficients was utilized to evaluate the strain distributions at the interface for the periodic and random fiber arrays with respect to fiber volume fractions. From the analysis, it was found that the random arrangement of fibers had a significant influence on the strain distribution at the interface, and the strain distribution in the periodic arrays was one of special cases of that in the random array.
en_US
TECHNOMIC PUBL CO INC
interfacial strains
micromechanics
representative volume element (RVE)
random fiber array
transverse loading
statistical approach
strain invariant failure theory (SIFT)
Interfacial Strain Distribution of a Unidirectional Composite with Randomly Distributed Fibers under Transverse Loading
Article
10.1177/0021998305055546
JOURNAL OF COMPOSITE MATERIALS
Oh, Je Hoon
Jin, Kyo Kook
Ha, Sung Kyu
2009204894
E
COLLEGE OF ENGINEERING SCIENCES[E]
DEPARTMENT OF MECHANICAL ENGINEERING
jehoon