A new measure of strand alignment with respect to bending stiffness

作者:Chen Siguo*; Liu Zhi Kun; Fang Luming; Wellwood Robert
来源:Forest Products Journal, 2008, 58(11): 57-61.

摘要

A new measure of strand alignment that effectively quantifies the bending stiffness its affected by strand angle distribution was proposed. This simplified measure combines the strand angle frequency distribution and all empirical function to describe the effect of strand angle distribution oil bending stiffness of strand-based panel products. The physical implication of the proposed new measure is explicit; it evaluates the strand angle distribution ill terms, of the fraction of the maximum achievable bending stiffness. Using 16 actually measured as well as assumed strand angle distributions for verification, this new measure was proven accurate. Some advantages of using such a measure were discussed. Dependence of bending stiffness on strand angle was also analyzed, and the common expressions of strand angle distribution were reviewed.