Failure modeling of sawn lumber with a fastener hole

摘要

There is a consistent reduction in member strength associated withlong-term use of structural wood members. It is hypothesized thatthis reduction in strength is due to "use and aging" effects such ascracks, splits and checks developed from drying stresses, moisturecycling, and fastener holes originating from initial constructiontechniques. The focus of this research effort was to develop anaccurate model of the behavior and performance of the recycledtimbers containing fastener holes. The flexural capacity ofstructural wood joists and planks containing fastener holes wasmodeled utilizing finite element analysis (FEA) coupled with thetensor polynomial (Tsai-Wu) strength theory.