A MICRO-MECHANICAL MODEL OF KNITTED FABRIC AND ITS APPLICATION TO THE ANALYSIS OF BUCKLING UNDER TENSION IN WALE DIRECTION:MICRO-MECHANICAL MODEL

【摘要】 <正> The typical micro-knitting structure of knitted fabric,which makes it very differentfrom woven fabric,is described.The tensile tests of knitted fabric are reported.The deformations ofthe micro-knitting structures are carefully studied.The study indicates that when a knitted fabric sheetis subjected to a tension along w-direction an extra compressive stress field inside loop in c-directionis induced.The extra stress field is also determined through analysis.Finally,a micro-mechanicalmodel of knitted fabric is proposed.This work paves the way for the simulations of buckling modes ofa knitted fabric sheet as are observed in experiments.更多还原

【Abstract】 The typical micro-knitting structure of knitted fabric,which makes it very different from woven fabric,is described.The tensile tests of knitted fabric are reported.The deformations of the micro-knitting structures are carefully studied.The study indicates that when a knitted fabric sheet is subjected to a tension along w-direction an extra compressive stress field inside loop in c-direction is induced.The extra stress field is also determined through analysis.Finally,a micro-mechanical model of knitted fabric is proposed.This work paves the way for the simulations of buckling modes of a knitted fabric sheet as are observed in experiments.更多还原