Impact properties of Bamboo bundle Laminated Veneer Lumber(BLVL) Manufactured with Veneer Preprocessing Densification technology
The objective of this study was to investigate the deformation behavior of bamboo bundle laminated veneer lumber(BLVL) manufactured with veneer preprocessing densification technology under low velocity impact loading.The influence of different preproeessing temperature, time and stacking sequences, i.e., bamboo bundle parallel to the length direction (type Ⅰ) and cross-ply (type Ⅱ) in laminates was studied in regard to impact loading.The results indicated that delamination and fiber breakage were the main damage model for BLVL made with the veneer preprocessing densification technology and its impact performance under veneer prepressing temperature of 90℃ and time of 10min was fairly comparable to the BLVL without preprocessing densification.The impact index of board decreased as the densification temperature increased.The impact properties for type Ⅱ were better than that of type Ⅰ.The curve characteristic of impact deflection VS time presented linear trend.While the curve of impact velocity decreased firstly and then it tends to level off as time elapse.
Bamboo bundle laminated veneer lumber Veneer prepressing densification Stacking sequence Impact performance energy curve
Fuming Chen Zehui Jiang Ge Wang Jianchao Deng Dan Zhang
International Centre for Bamboo and Rattan,Beijing,P.R.China,100102
国内会议
福州
英文
95-104
2013-11-11（万方平台首次上网日期，不代表论文的发表时间）