..., but it also decreases the cross-sectional area and, thus, has the potential to affect mechanical properties. Models have been developed to predict the effects of incising on flexural properties, but correlative data for engineering design adjustment factor(s) for incised and preservative treated lumber...

...Yu Cao; Minmin Li; Zheng Wang; Yunlu Wang; Zizhen Gao In this work, a method for dynamic testing of Poisson’s ratio of dimension lumber was proposed, based on the strain oscillation curve of first-order bending vibration of a cantilever plate. The method is efficient and convenient with good...

... properties of untreated and unexposed controls. However, FR treatment and redrying in themselves did not have an across-the-board effect on all properties of specimens or on the rate of strength loss compared to the properties of matched untreated lumber exposed at 150°F (66°C) for up to 108 days. Our...

...JE Winandy; W McNamara The purpose of this work was to evaluate the effects of a new boron-nitrogen, phosphate-free fire-retardant (FR) formulation on the initial strength of No. 1 southern pine 2 by 4 lumber and its potential for in-service thermal degradation. The lumber was evaluated according...

...DW Green; JW Evans A study was conducted to compare compression strength values obtained using short segments cut from full-length lumber and tested in accordance with ASTM D 4761-87 with those values obtained using full-leagth specimens and tested in accordance with ASTM D 198-84. Tests were...

... in dynamic testing of mechanically connected joints between structural wood materials. 13 10 1987 04 04 1988 dynamic testing cyclic loading hysteresis loading rate damping stiffness nailed joints lumber sheathing Reference Jenkins , J. L. , Polensek...