James R. Goodman

FEAFLO: A program for the analysis of layered wood systems☆

Abstract A finite element method for the analysis of planar layered wood systems is described. The method includes the effects of slip between layers due to fastener deformations, orthotropic material properties and gaps in layers. The method was used in developing program FEAFLO (Finite Element Analysis of FLOors). Data computed at each node include the deflection, rotations, fastener forces and for each layer the axial displacements, axial forces, moments, shears and extreme fiber stresses. The method was verified by comparing measured and predicted behavior for T-beams and wood joist floors. A listing of program FEAFLO, written in ANSI FORTRAN IV, is given. The input and output data for an example floor are also given.

Reliability of Wood Transmission Structures Through Nondestructive Evaluation

A Monte Carlo simulation technique is developed to predict the bending strength and stiffness distributions of new and in-service wood utility poles. The simulation is based on sonic nondestructive evaluation of poles and on correlations between destructive and nondestructive parameters. Excellent agreements were found between simulated and measured distributions for wood pole structures taken from a transmission line removed from service.