Fiber/matrix interface stress analysis of flax-fiber composites under transverse loading considering material nonlinearity

Date

2020-05-01

Author

SABUNCUOĞLU, BARIŞ
Cakmakci, Onur
Kadıoğlu, Fevzi Suat

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Distribution of stresses in fiber/matrix interface in UD flax fiber reinforced composites is investigated under transverse loading and compared with conventional synthetic fibers. Micro-scale finite element models with representative volume elements are generated with various fiber packing types and fiber volume ratios. The study is performed for various strain values, which take into account the material nonlinearity of matrix. The results show that significantly lower stress concentrations exist in the case of flax fibers compared to glass fiber composites, explaining the absence of transverse cracks until failure in previously conducted transverse tension tests. Increase in the applied transverse strain causes a further decrease in the stress concentrations due to the nonlinear behavior of the matrix.

Subject Keywords

Mechanical Engineering, Materials Chemistry, Mechanics of Materials, Polymers and Plastics, Ceramics and Composites

URI

https://hdl.handle.net/11511/46186

Journal

JOURNAL OF REINFORCED PLASTICS AND COMPOSITES

DOI

https://doi.org/10.1177/0731684420906608

Collections

Department of Mechanical Engineering, Article

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Citation Formats

B. SABUNCUOĞLU, O. Cakmakci, and F. S. Kadıoğlu, “Fiber/matrix interface stress analysis of flax-fiber composites under transverse loading considering material nonlinearity,” JOURNAL OF REINFORCED PLASTICS AND COMPOSITES, pp. 345–360, 2020, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/46186.