@Article{JRM.2015.634103,
AUTHOR = {Vikram Yadama, Michael P. Wolcott},
TITLE = {Application of Fiber Undulation Model to Predict Oriented  Strand Composite Elastic Properties},
JOURNAL = {Journal of Renewable Materials},
VOLUME = {3},
YEAR = {2015},
NUMBER = {3},
PAGES = {216--223},
URL = {http://www.techscience.com/jrm/v3n3/49599},
ISSN = {2164-6341},
ABSTRACT = {The effects of strand undulation angles in wood-strand composites have often been ignored due to the 
virtual impossibility of experimental determination of their effects on composite material properties, and 
the diffi culty in modeling localized deviations in angle along the path of a strand. The fi ber undulation 
model (FUM), that has been previously verifi ed, was applied in this study to predict the elastic constants of 
laboratory-manufactured oriented strand panels. A stochastic approach was incorporated where a series rule 
of mixtures with probability density functions of angle distributions was utilized in the model to transform 
the elastic constants in the constitutive matrix of the material for in- and out-of-plane strand deviations. 
Based on a theoretical approach, a reduction in E<sub>x</sub>
 due to strand undulations averaged about 7 percent over 
all confi gurations of test panels, indicating that localized out-of-plane strand deviations in commercially 
manufactured wood-strand composites should not signifi cantly affect longitudinal Young’s modulus.},
DOI = {10.7569/JRM.2015.634103}
}