Abstract
Lateral tensile deformation properties of wood were studied to clarify the tensile deformation properties of wood with drying and/or quenching histories, and it was discussed whether giving these histories was effective to increase the lateral tensile deformation of wood. The results obtained are as follows. In all of the samples with drying and/or quenching histories, failure strain was increased and elastic modulus was decreased. In all of the measurement conditions, the failure strain of 45° angle sample with history was the largest. This result was caused by the shearing deformation of cells which showed diamond-shaped deformation during increasing tensile stress. This shearing deformation of the cell shape was promoted by increase of fluidity and decrease of elastic modulus which were caused by treatment of drying and/or quenching. These results suggest that giving drying and/or quenching histories is effective for wood to increase the tensile deformation even in water saturated condition at 25 °C.
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