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Walter's cabin timber

Creator:: United States. Bureau of Land Management and Klamath Falls Resource Area
Resource Type:: Technical Report
Full Text:: …………………………………………………………………..35 Appendix A – Bibliography……………………………………………………………………………...A-1 Appendix B – Summary of Best

Thermal degradation of bending properties of structural wood and wood-based composites

Creator:: Sinha, Arijit, Gupta, Rakesh, and Nairn, John A.
Abstract:: Wood and wood-based composites are being used extensively in single-family residential dwellings. Therefore, it is important to categorize their response when exposed to elevated temperatures for a sustained period of time. In fire-resistant design for wood structures, the main goal is to ensure that enough structural integrity is maintained, during...
Resource Type:: Article
Full Text:: and wood-based composites Holzforschung, Vol. 65, pp. 221–229, 2011 • Copyright � by Walter de

Understanding sporulation and dissemination of Podosphaera macularis, hop powdery mildew

Creator:: Peetz, Amy B.
Abstract:: Podosphaera macularis causes one of the most important diseases, powdery mildew, of Humulus lupulus (hop). If left unmanaged, hop powdery mildew can cause total crop loss due to disease or browning of hop cones rendering the cones unmarketable to buyers. The Hop Powdery Mildew Infection Risk Index (HOPS) is heavily...
Resource Type:: Masters Thesis
Full Text:: Powdery Mildew. Abstract approved: Walter F. Mahaffee

Revisiting the neutral axis in wood beams

Creator:: Davis, Philip M., Gupta, Rakesh, and Sinha, Arijit
Abstract:: For wood beams, it is often assumed that the neutral axis (NA) is located at the centroid of the beam. This would be the case for isotropic and homogeneous materials but these prerequisites are not valid for wood. The varying grain patterns and knots located throughout wood make wood anisotropic...
Resource Type:: Article
Full Text:: N A f ro m b o tt o m ( m m ) Horizontal distance (mm) Tension knot Clear beam Center

Antioxidant activity of fractions from Quercus sideroxyla bark and identifi cation of proanthocyanidins by HPLC-DAD and HPLC-MS

Creator:: Rosales-Castro, Martha, Gonzalez-Laredo, Ruben Francisco, Rocha-Guzman, Nuria Elizabeth, Gallegos-Infante, Jose Alberto, Rivas-Arreola, Maria Jose, and Karchesy, Joseph J.
Abstract:: The most active phenolics in Quercus sideroxyla Humb. & Bonpl. residual bark were identified and evaluated following a chromatographic fractionation. Bark powder was defatted with hexane and crude extract (CE) was obtained by extraction with aqueous acetone (70%). A liquid partition with ethyl acetate was performed to produce an organic...
Resource Type:: Article
Full Text:: b MF2 * 6.5 1 665.8 ± 13.5 c 412.3 ± 2.4 d 45.4 ± 0.7 c,d 525.8 ± 0.3 f 725.2 ± 20.3 e

A new soy flour-polyepoxide adhesive system for making interior plywood

Creator:: Huang, Jian, Li, Chunhong, and Li, Kaichang
Abstract:: In this study, triglycidylamine (TGA) was synthesized and evaluated as a crosslinking agent for soy flour (SF) for making five-ply plywood from yellow poplar. Glycerol polyglycidyl ether (GPE) and trimethylolpropane triglycidyl ether (TTE) were also investigated as crosslinking agents for SF as adhesive for plywood. The plywood panels bonded with...
Resource Type:: Article
Full Text:: • Copyright © by Walter de Gruyter • Berlin • Boston. DOI 10.1515/HF.2011.169 A new soy fl our

Effect of grain angle on shear strength of Douglas-fir wood

Creator:: Gupta, Rakesh and Sinha, Arijit
Abstract:: The effect of grain angle (GA) on shear strength of Douglas-fir has been evaluated. Shear block specimens with a GA varying from 0 to 90° was loaded in the shear plane, resulting in failure mode transitioning from parallel to grain shear to rolling shear. As expected, shear strength decreased as...
Resource Type:: Article

Characterizing perpendicular-to-grain compression (C-perpendicular to) behavior in wood construction

Creator:: Basta, Craig Thomas, Gupta, Rakesh, Leichti, Robert J., and Sinha, Arijit
Abstract:: Current compression perpendicular-to-grain (C-perpendicular to) design values for wood members are based on mean stress obtained from ASTM D143 specimen. The standard ASTM test with metal on wood bearing has limited applicability in modern construction assemblies with C-perpendicular to loading scenarios. Previous work has shown that end-bearing conditions and wood-on-wood...
Resource Type:: Article
Full Text:: plane (Figure 6b,f). This led to rolling shear and cross-grain bending of the B.C. member (Figure 7a,b,f

Strain distribution and load transfer in the polymer-wood particle bond in wood plastic composites

Creator:: Schwarzkopf, Matthew and Muszynski, Lech
Abstract:: The load transfer between wood particles and the matrix was analyzed by observation of the strain patterns in thin films of high density polyethylene (HDPE) with embedded wood particles subjected to tensile loading. Optical measurement techniques based on the digital image correlation (DIC) principle were employed for quantitative measurement of...
Resource Type:: Article
Full Text:: and load transfer in WPCs a b c d e f g h Figure 1 (a, b, c) WPC test specimens; (d, e) embedded

Postpeak residual capacity of nailed connections of a shear wall

Creator:: Sinha, Arijit
Abstract:: To quantify the postpeak residual capacity and to gain insights into the load transfer mechanism of a shear wall, nail connection tests were performed on salvaged connections after a monotonic shear wall test loaded up to peak load. Experimental results reveal that there is a loss of strength in most...
Resource Type:: Article
Full Text:: . Holzforschung, 68(8), 987-992. doi:10.1515/hf-2013-0195 10.1515/hf-2013-0195 Walter de Gruyter GmbH Version

ScholarsArchive@OSU

Walter's cabin timber

Thermal degradation of bending properties of structural wood and wood-based composites

Understanding sporulation and dissemination of Podosphaera macularis, hop powdery mildew

Revisiting the neutral axis in wood beams

Antioxidant activity of fractions from Quercus sideroxyla bark and identifi cation of proanthocyanidins by HPLC-DAD and HPLC-MS

A new soy flour-polyepoxide adhesive system for making interior plywood

Effect of grain angle on shear strength of Douglas-fir wood

Characterizing perpendicular-to-grain compression (C-perpendicular to) behavior in wood construction

Strain distribution and load transfer in the polymer-wood particle bond in wood plastic composites

Postpeak residual capacity of nailed connections of a shear wall

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