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Single-fiber pull-out testing(SFPOT)methods are frequently used to evaluate the inter-facial adhesion between fiber and matrix in composite materials.To make such pull-out mea-surements,however,the length of embedded fiber must be small enough so that the fiberdoes not break before it is pulled freely.This is difficult to achieve by conventional methodswith fibers of small diameter,such as the carbon fibers.In this paper,a fiber pull-out ex-periment is described.Specialized apparatus in our laboratory,as well as this technique forsample preparation are discussed in detail.The interracial shear strength of carbon fiber/resin matrix composites is analyzed quantitatively by using the finite-element method.TheSFPOT system has been proved to be an available means for the study of interracial proper-ties for carbon fiber/resin matrix composites.
Single-fiber pull-out testing (SFPOT) methods are frequently used to evaluate the inter-facial adhesion between fiber and matrix in composite materials. To make such pull-out mea- surements, however, the length of embedded fiber must be small enough so that the fiber does not break before it is to pull freely.This is difficult to achieve by conventional methods with fibers of small diameter, such as the carbon fibers. In this paper, a fiber pull-out ex-periment is described. laboratory, as well as this technique forsample preparation are discussed in detail. interracial shear strength of carbon fiber / resin matrix composites is analyzed quantitatively by using the finite-element method. The SFPOT system has been proved to be an available means for the study of interracial proper-ties for carbon fiber / resin matrix composites.