Mode of Failure Model for Cutting Solid Section Biomass

Abstract

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Woody biomass size reduction with selective material orientation

“…These results are consistent with our earlier models reported by Lanning et al [13]. These results are consistent with our earlier models reported by Lanning et al [13].…”

“…Our theories about how wood structural properties and natural modes of failure relate to shearing forces and energy were described by Lanning et al [13]. An object of the project discussed in this paper was to further refine our mathematical models to include experimentally derived data from a purpose-built laboratoryscale instrumented rotary bypass shear (also known as a Crumbler™ machine).…”

Modeling Energy Consumption for Crushing of Roundwood as a First Stage of Feedstock Preparation

“…That value is approximately the same as the published tensile strength of the wood in that direction. This result is entirely consistent with the findings of Lanning (Lanning et al 2008) in earlier Forest Concepts experiments that concluded that Poisson's forces are more important than simple compression forces for predicting the failure of wood materials when exposed to compression and shearing forces.…”

Understanding the Impact of Lignocellulosic Biomass Variability on the Size Reduction Process: A Review

“…The rotary bypass shear mill is relatively new lignocellulosic biomass size reduction equipment developed to address the limitations of conventional size reduction equipment, particularly the hammer mill. The rotary bypass shear mill (Crumbler) was developed and patented by Forest Concepts, LLC using well-defined modes of failure and the structural biology of wood; − however, it has also been used for the size reduction of agricultural straws such as corn stalks . Uniform particle size distribution and a relatively low aspect ratio are achieved in this type of size reduction equipment. , Woody biomass is typically first processed into veneers by peeling the wood surface with a veneer lathe.…”