Holzforschung · 2006 · 17 citations · 15 references
EngineeringMaterials EngineeringMaterials ScienceMaterials CharacterizationMechanical Behavior Of MaterialsStructural MaterialsBending Of BeamsPlate TheoryShear PropertiesShear StrengthTimber MaterialsTimber StructuresFinite Element ModelingFinite Element SimulationFour-point Bending TestMechanical Properties Of TimberPlate BendingPlate Bending AnalysisShear ModulusShear Testing
Abstract In this research, square-plate twist test methods for obtaining the shear modulus of wood were examined. Square plates of western hemlock ( Tsuga heterophylla Sarg.) were used as specimens. Twist tests were conducted according to three different methods for various length/thickness and span/plate diagonal ratios, and the shear modulus corresponding to each test condition was obtained. To examine the validity of shear modulus obtained by these tests, asymmetric four-point bending tests and finite element calculations were independently conducted and the results were compared. Specimens had a length/thickness ratio greater than 47 and were supported at two or three points close to each corner while applying a load to the remaining corner. Under these conditions, the shear modulus could be properly obtained over a wide range of span/plate diagonal ratios.
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