Process optimization of large-span bamboo bundle laminated veneer lumber(BLVL)by Box-Behnken design
This work focuses on the optimization of the laminated lap-joint lengthening technology that is used to produce large-size bamboo bundle laminated veneer lumber(BLVL).A three-factor Box-Behnken design was developed for this purpose,lap-joint length(x1),board density(x2)and thickness of lap veneer(x3)were as the factors.Multi-objective optimization of response surface model was used to obtain 17 optimum Pareto solutions by a genetic algorithms method.The mechanical properties of BLVL predicted using the model had a strong correlation with the experimental values(R2=0.925 for MOE,R2=0.972 for MOR,R2=0.973 for SS).The interaction of the x1 and x3 factors had a significant effect on elastic modulus(MOE).The modulus of rupture(MOR)and shearing strength(SS)were significantly influenced by the interaction of x2 and x3 factors.The optimum conditions for maximizing the mechanical properties of BLVL lap joint lengthening process were established at x1=16.10 mm,x2=1.01 g/cm3,x3=7.00 mm.A large-size of BLVL with a length of 14.1m was produced with the above conditions solution and strong mechanical properties and dimensional stability were observed.
Bamboo bundles lap-joint laminated veneer lumber (LVL) Box-Behnken design response surface methodology mechanical properties
Fuming Chen Zehui Jiang Ge Wang Lee M.Simth Sheldon Q.Shi
Department of Bamboo and Rattan Biomaterials,International Centre for Bamboo and Rattan,Beijing,Chin Mechanical and Energy Engineering,University of North Texas,Denton,TX 76203-1277,USA
国内会议
宁波
英文
48-58
2016-10-20（万方平台首次上网日期，不代表论文的发表时间）