Analysis of cellulose networks by the finite element method

摘要: Paper can be regarded as a network of cellulosic fibres, especially at lower basis weights. When the elastic behaviour paper sheets is modelled, it normally essential to know or assume how stresses (and strains) are distributed fibre level. This article presents an attempt estimate transferred throughout simple using finite element method (FEM). Attention mainly focused on axial stress distribution when uniaxially deformed. The presence ends found induce local increases (“stress concentrations”) in deformed network, which presumably have bearing ultimate properties sheet. influence bonds between crossing fibres mechanical also investigated. It noted that bond stiffness has no significant effect transfer provided above critical value. Below this value deteriorates rapidly.