Static Bending Creep Properties of Glass Fiber Surface Composite Wood  

作　　者：Shang Zhang Jie Wang Benjamin Rose Yushan Yang Qingfeng Ding Bengang Zhang Chunlei Dong 

机构地区：[1]Suzhou Crownhomes Co.,Ltd.,Suzhou,215128,China [2]School of Materials Science and Engineering,Southwest Forestry University,Kunming,650224,China [3]College of Chemistry and Materials Engineering,Zhejiang A&F University,Hangzhou,311300,China [4]Universitéde Lorraine,Inrae,LERMAB,Epinal,88000,France [5]Department of Chemistry,Hampden-Sydney College,Hampden-Sydney,USA

出　　处：《Journal of Renewable Materials》2023年第6期2881-2891,共11页可再生材料杂志（英文）

基　　金：The present work was financially sponsored by the National Natural Science Foundation of China(Grant No.31960291).

摘　　要：To study the static bending creep properties of glass fiber reinforced wood,glass fiber reinforced poplar(GFRP)specimens were obtained by pasting glass fiber on the upper and lower surfaces of Poplar(Populus euramevicana,P),the performance of Normal Creep(NC)and Mechanical Sorptive Creep(MSC)of GFRP and their influencing factors were tested and analyzed.The test results and analysis show that:(1)The MOE and MOR of Poplar were increased by 17.06%and 10.00%respectively by the glass fiber surface reinforced composite.(2)The surface reinforced P with glass fiber cloth only exhibits the NC pattern of wood and loses the MSC characteristics of wood,regardless of the constant or alternating changes in relative humidity.(3)The instantaneous elastic deformation,viscoelastic deformation,viscous deformation and total creep deflection of GFRP are positively correlated with the stress level of the external load applied to the specimen.Still,the specimen’s creep recovery rate is negatively correlated with the stress level of the external load applied to the specimen.The static creep deflection and viscous deformation of GFRP increase with the increase of the relative humidity of the environment.(4)The MSC maximum creep deflection of GFRP increased by only 7.41%over the NC maximum creep deflection,but the MSC maximum creep deflection of P increased by 199.25%over the NC maximum creep deflection.(5)The Burgers 4-factor model and the Weibull distribution equation can fit the NC and NC recovery processes of GFRP well.

关 键 词：Glass fiber reinforced composite wood Normal Creep(NC) wood creep Mechanical Sorptive Creep(MSC) creep model 

分 类 号：TB33[一般工业技术—材料科学与工程]