Composites Science and Technology vol:63 issue:2 pages:311-325
Knowledge on the micro-structure of composites is important to investigate their mechanical properties such as the tensile stiffness. X-ray computer assisted tomography, often called X-ray CT scan, has been used here to characterise the micro-structure of rib weft knitted fabrics. This tomography technique provides three-dimensional images of rib weft knitted fabrics. The orientation of yarn segments is represented using second order (a(ij)) and fourth order (a(ijkl)) tensors. Micro-mechanical models with respect to the yam orientation were used to predict the stiffness properties of rib and milano knitted fabric composites. (C) 2002 Elsevier Science Ltd. All rights reserved.