科研之友
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摘要
Experimental studies have revealed the significance of the cellular morphology of the wool fibre on the formation of single fibre curvature, which contributes to staple crimp. Munro and Carnaby's model (1999) is improved by directly computing displacement, stress and strain energy. The governing equation for the load and mass transfer induced curvature is solved numerically, as describing such behaviour of a material with complex geometry is beyond the capability of the analytical approach. The physical properties of the three components (cuticle, orthocortex and para/mesocortex) of the wool fibre are estimated on the basis of the authors' wool fibre stiffness models. The geometric configurations of the simulations are built from internal wool fibre images. The simulations are validated to be consistent with the observations of single fibre curvature. The displacement, stress and strain energies of the wool fibre due to moisture desorption are mapped, which gives the mechanical information of wool fibres detailed to nodes and elements.
- 出版日期2013-8
- 单位天津工业大学
