Transparent wood (TW) based on delignified birch veneer and thermoplastic poly(methyl methacrylate) (PMMA) is investigated by uniaxial tensile tests and full-field strain analyses based on digital image correlation techniques. TW is considered as a composite of unidirectional fibers (wood veneer) in a matrix (PMMA). Four in-plane elastic constants along the material axes are reported to enable the usage of continuum mechanics and lamination theory. Longitudinal composite strength is as high as 270 MPa at a reinforcement content of only 25 vol %. The failure behavior is interpreted based on strain field development. Strong reinforcement effects were observed from delignified birch veneer. Despite the fragility of delignified veneers, this constituent provides unexpectedly high reinforcement due to the high cellulose content and favorable stress transfer mechanisms.

通过单轴拉伸试验和基于数字图像相关技术的全场应变分析，研究了基于去木质化桦木贴面和热塑性聚甲基丙烯酸甲酯（PMMA）的透明木材（TW）。TW被认为是基质（PMMA）中单向纤维（木质贴面）的复合材料。报告了沿材料轴的四个面内弹性常数，以允许使用连续体力学和层合理论。在仅25体积％的增强含量下，纵向复合强度高达270MPa。根据应变场的发展来解释失效行为。木质素化的桦木贴面具有很强的增强作用。尽管木皮过薄易碎，