毛竹／杉木层积复合材弯曲与剪切破坏的微观形变过程  

Bending and Shearing Failure Process of Moso bamboo-Chinese Fir Laminated Composites

作　　者：王戈[1] 江泽慧[1] 于文吉[2] 

机构地区：[1]国际竹藤网络中心,北京100102 [2]中国林业科学研究院

出　　处：《东北林业大学学报》2008年第2期27-29,共3页Journal of Northeast Forestry University

基　　金：国家“十一五”支撑项目(2006BAD19B07);国家林业局“948”引进项目(2003-4-27)

摘　　要：利用扫描电镜在位拉伸方法(ISL-SEM),研究了毛竹/杉木层积复合材在受到外力作用下3点弯曲和剪切破坏的微观形变过程;结合扫描电镜所观测的形貌图,分析了该情况下层积材的典型破坏规律;总结了气干和水湿处理后,竹杉层积复合材剪切破坏模式以及气干条件下弯曲破坏模式。The micro-failure process of three-point bending and shearing strength on Moso bamboo-Chinese fir laminated composites under loading was investigated by the in-situ linear-scan electron microscope method （ISL-SEM）. The typical failure regularities were analyzed in accordance with the images observed by scanning electron microscope. The breakage patterns of Moso bamboo-Chinese fir laminated composites, including shearing failure after air-dry and water soaking and bending failure under air-dry condition, were also summarized.

关 键 词：毛竹杉木层积材 扫描电镜在位拉伸 弯曲 剪切 破坏模式 

分 类 号：S781[农业科学—木材科学与技术]