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245	1	0	_aFiber-Matrix Adhesion and Its Effect on Composite Mechanical Properties. III. Longitudinal (0 degree)Compressive Properties of Graphite/Epoxy Composites
490	0		_vJournal of Composite Materials, 26(3), p.310-333, 1992
520	3		_aAn experimental investigation was performed to quantify the relationship between fiber-matrix adhesion as determined by single fiber interfacial shear strength tests with the compressive properties and failure modes of unidirectional graphite/epoxy com posites. The compression tests were conducted on three identical sets of composites differ ing only in their fiber-matrix interfacial shear strength. The interfacial shear strength was varied by using the same graphite fibers with different surface treatments, namely un treated, surface treated, and surface treated and coated with a thin layer of epoxy. The sur face treatment changed the interfacial shear strength by more than a factor of two, while the properties of the fibers remained unchanged. The experimental results show that the fiber surface treatment affects the compressive modulus only marginally. However, the compressive strength and maximum compressive strain were highly sensitive to the fiber surface treatment. Both the strength and maximum strain increased with the interfacial shear strength. The fracture surface analysis revealed that when the fiber-matrix inter facial shear strength was low the compressive failure occurred due to delamination and global delamination buckling. At intermediate values of the interfacial shear strength, the compressive failure occurred due to shear failure driven by inphase microbuckling of fibers. The composites having the highest values of the interfacial shear strength yielded "stepped" fracture surfaces showing compressive failure of fibers in several planes perpen dicular to the fiber axis.
700	1	2	_aMadhukar, M. S.
700	1	2	_aDrzal, L. T.
856	4	0	_uhttps://drive.google.com/file/d/1RZGLylJUx3ggc7PKLeeouoUzuPMlTLU8/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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