Abstract
This study presents a new experiment to image and analyze the evolution of transverse tensile fracture in tape-laminate carbon/epoxy composites at the microscale. To this end, a miniature double cantilever beam specimen is developed to produce stable transverse tensile fracture and various amounts of crack turning through a stack of 90° plies. The specimen is wedge-loaded with a custom micromechanical tester, while the crack growth is optically monitored at both the micro- and macro-scale. Post-test, microscale images are analyzed to determine the transverse crack path relative to the applied loading, and to directly measure local strains using 2D digital image correlation. The experimental data sets obtained in this study enable direct validation of finite element simulations of transverse tensile cracking in fibrous composites at the microscale and provide impetus for their further model development.
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Gonzalez, C., Llorca, J.: Mechanical behavior of unidirectional fiber-reinforced polymers under transverse compression: Microscopic mechanisms and modeling. Compos. Sci. Technol. 67, 2795–2806 (2007)
Yang, L., Yan, Y., Liu, Y., Ran, Z.: Microscopic failure of fiber reinforced polymer composites under transverse tension and compression. Compos. Sci. Technol. 72, 1818–1825 (2012)
Okabe, T., Imamura, H., Sato, Y., Higuchi, R., Koyanagi, J., Talreja, R.: Experimental and numerical studies of initial cracking in CFRP cross-ply laminates. Compos. Part A. 68, 81–89 (2015)
Naya, F., Gonzalez, C., Lopes, C.S., Van der Veen, S., Pons, F.: Computational micromechanics of the transverse and shear behavior of unidirectional fiber reinforced polymers including environmental effects. Compos. Part A. 92, 146–157 (2017)
Herraez, M., Mora, D., Naya, F., Lopes, C.S., Gonzalez, L.J.: Transverse cracking of cross-ply laminates: A computational micromechanics perspective. Compos. Sci. Technol. 110, 196–204 (2015)
Herraez, M., Gonzalez, C.: Lopes CS. A numerical framework to analyze fracture in composite materials: From R-curves to homogenized softening laws. Int. J. Solids Struct. 000, 1–13 (2017)
Czabaj, M.W., Ratcliffe, J.G.: Comparison of intralaminar and interlaminar mode I fracture toughnesses of a unidirectional IM7/8552 carbon/epoxy composite. Compos. Sci. Technol. 89, 15–23 (2013)
Czabaj, M.W., Riccio, M.L., Whitacre, W.W.: Numerical reconstruction of graphite/epoxy composite microstructure based on sub-micron resolution X-ray computed tomography. Compos. Sci. Technol. 105, 174–182 (2014)
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© 2019 The Society for Experimental Mechanics, Inc.
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Smith, A.J., Arndt, C.M., Benson, D., Czabaj, M.W. (2019). 2D Microscale Observations of Interlaminar Transverse Tensile Fracture in Carbon/Epoxy Composites. In: Thakre, P., Singh, R., Slipher, G. (eds) Mechanics of Composite, Hybrid and Multifunctional Materials, Volume 5. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-95510-0_20
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DOI: https://doi.org/10.1007/978-3-319-95510-0_20
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