The importance of twist reinforcing mechanism to the strength of a twisted structure with continuous components, the interaction patterns between different types of components during yarn extension, and the significance of multiple breaks along a component are demonstrated. The model acts to predict the strength and fracture behavior of a blended yarn with continuous components. By means of this new model, issues like the strength reinforcing mechanism of twist in a blended yarn, the yarn break propagation pattern, and twist effect on yarn fracture behavior as well as the shape effect of component stress-strain curves are simulated and elucidated. Moreover the relationship between strength of a structure and of its components is investigated in this study. J., August 1998.
Knitted fabric is produced in the form of interlaced loops.
Under different deformations of the fabric, a loop changes shape and length. Empirical, geometric and mechanical models have been developed in the past to study the structural and mechanical properties of knitted fabrics. An image processing technique is used to obtain the coordinates of the loops within the fabric during deformation and the relationship between fabric strain and yarn strain is studied. J., August 1998. In the past, many attempts have been made to quantify the characteristics of knitted fabrics.