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  • 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...
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    axis in wood beams Philip M. Davis, Rakesh Gupta and Arijit Sinha

  • 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:
    axis in wood beams Philip M. Davis, Rakesh Gupta and Arijit Sinha

  • Modeling of metal-plate-connected wood truss joints

    Creator:
    Vatovec, M., Miller, T. H., and Gupta, R.
    Abstract:
    A commercially available, three-dimensional finite-element analysis software was used to model the load-displacement behavior of metal-plate-connected (MPC) joints in wooden trusses. Model features included consideration of material properties, teeth-to-grain-to-direction-of-force orientation, wood-to-wood interaction, and gaps between wood members. To simulate wood-to-plate interaction, the main feature of the model, each tooth of...
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    OF METAL-PLATE-CONNECTED WOOD TRUSS JOINTS M. Vatovec, T. H. Miller, R. Gupta ABSTRACT. A

  • Quorum sensing modulates colony morphology through alkyl quinolones in Pseudomonas aeruginosa

    Creator:
    Gupta, Rashmi and Schuster, Martin
    Abstract:
    Background: Acyl-homoserine lactone (acyl-HSL) and alkyl quinolone (AQ) based quorum-sensing (QS) systems are important for Pseudomonas aeruginosa virulence and biofilm formation. The effect of QS on biofilm formation is influenced by various genetic and environmental factors. Here, we used a colony biofilm assay to study the effect of the central...
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    Mol Biol Rev 2009, 73(2):310-347. 8. Gilbert KB, Kim TH, Gupta R, Greenberg EP, Schuster M: Global

  • Practical Approach to Designing Wood Roof Truss Assemblies

    Creator:
    Gupta, Rakesh and Limkatanyoo, Pranueng
    Abstract:
    The objective of this research was to use a three-dimensional (3D) analysis method to evaluate “system effects” in light-frame roof truss assemblies. The goal of this study was to develop an improved and practical design method for 3D roof truss assemblies used in residential construction. A truss plate manufacturer (TPM)...
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    Rakesh Gupta, M.ASCE1; and Pranueng Limkatanyoo2 Abstract: The objective of this research was to use a

  • Improving the Performance of Gypsum Wallboard in Wood Frame Shear Walls

    Creator:
    Goodall, Scott I. and Gupta, Rakesh
    Abstract:
    The overall goal of this project was to design a wood frame shear wall that could withstand greater displacement before damage occurred to the gypsum wall board (GWB). A total of 14 shear walls consisting of seven different designs with two walls built per design were tested to failure. Six...
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    . Goodall1 and Rakesh Gupta, M.ASCE2 Abstract: The overall goal of this project was to design a wood frame

  • 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...
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    grain angle on shear strength of Douglas-fi r wood Rakesh Gupta and Arijit Sinha

  • 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
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    grain angle on shear strength of Douglas-fi r wood Rakesh Gupta and Arijit Sinha

  • A comparison of the shear strength of strucutral composite lumber using torsion and shear block tests

    Creator:
    Gupta, Rakesh and Siller, Tobias S.
    Abstract:
    The objective of this study was to compare the shear strength of structural composite lumber (SCL) based on shear block to that of shear strength based on torsion test. Shear blocks in two diflcrent orientations fom laminated veneer lumber, parallel strand lumber, and laminated strand lumber (LSL) were tested and...
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    lumber using torsion and shear block tests Rakesh Gupta Tobias S. Siller Abstract The objective of

  • Evaluation of Remediation Techniques for Circular Holes in the Webs of Wood I-Joists

    Creator:
    Polocoser, Tiberiu, Miller, Thomas H., and Gupta, Rakesh
    Abstract:
    Remediation methods and strength predictions were evaluated for wood I-joists with single, circular holes in the webs, leaving utilities in place. A full-scale bending test using four equally-spaced point loads was applied to three depths of joists with varying flange widths and span lengths of 4.88 m and 2.44 m....
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    of Wood I-Joists Polocoser, T., Miller, T. H., & Gupta, R. (2013). Evaluation of Remediation