4.6 Article

Physicomechanical properties and creep behavior of plywood composed of fully and partially heat-treated veneers

Journal

WOOD SCIENCE AND TECHNOLOGY
Volume 55, Issue 2, Pages 445-460

Publisher

SPRINGER
DOI: 10.1007/s00226-020-01250-w

Keywords

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Funding

  1. Ministry of Science and Technology [MOST 108-2313-B-005-023-MY3]
  2. Forestry Bureau of the Council of Agriculture, Taiwan [109AS-10.8.1-FB-e2(2)]

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This study found that the mechanical properties of heat-treated veneer plywood were not significantly different from untreated plywood, but the heat-treated plywood showed better creep resistance. The stepped isostress method (SSM) was successfully used to construct the creep master curves for plywood.
This study investigated the effect of heat-treated veneers on the physicomechanical properties and extended creep behavior of plywood using the stepped isostress method (SSM). The results revealed that the mechanical properties of plywood composed of fully and partially heat-treated veneers were not significantly different from those of the untreated plywood. In addition, the SSM was successfully applied to constructing the plywood creep master curves. The creep resistance of the heat-treated plywood surpassed that of the untreated plywood, especially the 5T(200) plywood, which also exhibited the lowest compliance values of 0.13, 0.14, and 0.15 GPa(-1) at 5, 10, and 20 years, respectively.

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