Fibre fracture axial compression

Nakatani M, Shioya M, Yamashita J, Axial compressive fracture of carbon fibres. Carbon, 37(4),... 

Hawthorne HM, Teghtsoonian E, Axial compression fracture in carbon fibres, J Mater Sci, 10, 41, 1975. 

An early view of fracture of para-aramid fibres was given by Yang (1993, p. 97), who refers to three basic forms. The caption to his fig. 3.28 describes fracture morphology of Kevlar aramid fibre in tensile breaks as Type (a), pointed break type (b) fibrillated break type (c) kink-band break. The kink-band breaks, which extend over a length approximately equal to a fibre diameter can be attributed to fibres that have been weakened by axial compression and will be discussed in a later section. 

If a composite with unidirectional fibres is loaded in tension or compression perpendicular to the fibre direction or in axial shear in fibre direction, it can fail without failure of the fibres by fracture, buckling, or kinking. These cases are therefore called matrix-dominated failure. 

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