However, Alaska-grown yellow-cedar appears to have lower mean values for MOE, horizontal shear
, and SG.
6] psi 822 Ultimate tension strength psi 463 Horizontal shear
psi 91 Compression perpendicular to the grain psi 99 Green COV Mean St.
The objectives of this paper are to 1) report how properties, with less known information, such as horizontal shear
strength, tension and compression perpendicular to the grain strength and stiffness, and Mode I fracture toughness of fast-growth, plantation-grown loblolly pine (Pinus taeda) 2 by 4's are influenced by varying proportions of juvenile wood, and 2) discuss what effect orientation of annular tings has on these results.
6] psi 141 Ultimate tension strength psi 142 Horizontal shear
psi 124 Compression perpendicular to the grain psi 117 Green COV Mean SD (percent) Modulus of rupture 6777 1056 15.
A possible partial explanation is that the potential face MOE and MOR values were limited by the high proportion of core horizontal shear
failures for fines contents less than 50 percent.
The maximum horizontal shear
strength, Su, of the D-log walls was calculated as:
The horizontal shear
forces are transmitted through the shear key with little interlayer slip, while the dowels work in traction to resist the vertical load component.
Hence, the current horizontal shear
design values based on standard shear blocks are probably a good and conservative estimate of the shear strength of structural lumber.
Additional to the horizontal shear
force a vertical force induced by a single truck tire was applied during the test and the caused deformations were measured (Empa report 1985, not for public use).
parallel]] was mainly due to the effects of horizontal shear
none have properties that match Lebanite for density, internal bond, modules of rupture, tensile strength, horizontal shear
, modules of elasticity, direct screw withdrawal, hardness, impact indentation, or abrasion resistance.
More specifically, the horizontal shear
, associated with wave-induced Stokes drift, stretches and intensifies existing vortices, giving rise to 'streaky' turbulent patterns we observed at the water's surface.