通过纵波传播、纵向共振和弯曲振动三种方法对木塑结构板材的动态弹性模量(MOE)进行了无损检测.采用三点弯曲试验检测木塑结构板材的静态弹性模量和最大弯曲力(Fm).运用最大弯曲力和动态弹性模量之间的回归方程,预测相同木塑结构板材的最大弯曲力,并采用一次二阶矩法评价木塑结构板材基于预测和检测的最大弯曲力的可靠性指标.结果表明:动态弹性模量和最大弯曲力间存在较强的相关性;基于预测最大弯曲力的可靠度大于基于检测最大弯曲力的可靠度,其最大差值为0.66%.
参考文献
[1] | 江京辉,吕建雄,任海青,等.动态弹性模量用于评估不同等级规格材的研究[J].南京林业大学学报,2008,32(2):63-66.Jiang Jinghui,Lü Jianxiong,Ren Haiqing,et al.Assessment of different grade dimension lumber by dynamicmodulus of elasticity[J].Journal of Nanjing Forestry University,2008,32(2):63-66. |
[2] | Emerson R N,Pollock D G,Kainz J A.Nondestructive evaluation technique for timber bridges[J].NDT,1999,4(11):5-10. |
[3] | 朱晓冬,王逢瑚,孙建平.单板层积材动态弹性模量的无损检测[J].东北林业大学学报,2009,26(5):30-32.Zhu Xiaodong,Wang Fenghu,Sun Jianping.Nondestructive test on the dynamic modulus of elasticity for laminated veneer lumber[J].Journal of Northeast Forestry University,2009,26(5):30-32. |
[4] | 池德汝,童 昕,林新青.纤维板的弹性模量及静曲强度的动态检测[J].木材加工机械,2006(5):14-17.Chi Deru,Tong Xin,Lin Xinqing.Dynamic detection for Young's modules and bend strength of fiberboard[J].Wood Processing Machinery,2006(5):14-17. |
[5] | Nzokou P,Freed J,Kamdem D P.Relationship between non destructive and static modulus of elasticity of commercial wood plastic composites[J].Holz als Roh-unk Werkstoff,2006,64:90-93. |
[6] | 冷劲松,杜善义,王殿富,等.复合材料结构敲击法无损检测的灵敏度研究[J].复合材料学报,1995,12(4):99-105.Leng Jinsong,Du Shanyi,Wang Dianfu,et al.Sensitivity of the coin-tap method of nondestructive testing for composite structures[J].Acta Materiae Compositae Sinica,1995,12(4):99-105. |
[7] | 张志刚,马中华,王金晶.钢筋混凝土结构可靠度分析方法[J].山西建筑,2007,33(31):94-95.Zhang Zhigang,Ma Zhonghua,Wang Jinjing.Analysis methods of the reliability of the reinforced concrete structure[J].Shanxi Architecture,2007,33(31):94-95. |
[8] | 周振君,杨正方,肖志国,等.样板晶生长法制备Y-TZP/板状氧化铝复相陶瓷的力学性能和可靠性[J].复合材料学报,2004,21(1):29-32.Zhou Zhenjun,Yang Zhengfang,Xiao Zhiguo,et al.Mechanical properties and reliability of Y-TZP/plateletalumina composites by templated-alumina[J].Acta Materiae Compositae Sinica,2004,21(1):29-32. |
[9] | 李辉,张立同,曾庆丰,等.2D C/SiC复合材料的可靠性评价[J].复合材料学报,2007,24(4):95-100.Li Hui,Zhang Litong,Zeng Qingfeng,et al.Reliability analysis of 2D C/SiC composite[J].Acta Materiae Compositae Sinica,2007,24(4):95-100. |
[10] | 周玉辉,杨福江.高转速复合材料圆柱壳结构可靠性优化设计[J].复合材料学报,2011,28(3):154-158.Zhou Yuhui,Yang Fujiang.Optimal design on structure reliability of cylindrical composite shell rotating with a high speed[J].Acta Materiae Compositae Sinica,2011,28(3):154-158. |
[11] | 孙秦,白金泽.一种复合材料梁架结构的强度可靠性分析[J].应用力学学报,2002,19(3):5-9.Sun Qin,Bai Jinze.Analysis of strength reliability for a frame structure of composite laminated beam[J].Chinese Journal of Applied Mechanics,2002,19(3):5-9. |
[12] | 安伟光,赵维涛,杨多和.复合材料层合板的可靠性分析方法[J].宇航学报,2005,26(5):672-675.An Weiguang,Zhao Weitao,Yang Duohe.A method of reliability analysis for composite laminate[J].Journal of Astronautics,2005,26(5):672-675. |
[13] | Hu Y,Nakao T,Nakai T,Gu J,Wang F.Dynamic properties of three types of wood-based composites[J].Journal of Wood Science,2005,51:7-12. |
[14] | Hu Y,Wang F,Gu J,Liu Y,Nakao T.Nondestructive test and prediction of modulus of elasticity of veneer-overlaid particleboard composite[J].Wood Science and Technology,2005,39(6):439-447. |
[15] | Cheng Fangchao,Hu Yingcheng.Reliability of timber structure design of poplar lumber with nondestructive testing methods[J].Bioresources,2011,6(3):3188-3198. |
[16] | ASTM D790-03.Standard test methods for flexural properties of unreinforced and reinforced plasticsand electrical insulating materials[S].New York:ASTM International,2003. |
[17] | Xue Bing,Hu Yingcheng.Reliability analysis of the structural laminated veneer lumber[J].Materials Science Forum,2009,620-622:157-160. |
[18] | Huang B,Du X.Analytical robustness assessment for robust design[J].Struct Multidiscip Optim,2007,34(1):23-37. |
[19] | Chen N Z,Sun H H,Soares C G.Reliability analysis of a ship hull in composite material[J].Composite Structures,2003,62:59-66. |
[20] | 于贵文.不同密度木塑结构板材的可靠性分析[J].包装工程,2011,32(9):9-11.Yu Guiwen.Reliability analysis of wood-plastic Structural planks with different density[J].Packaging Engineering,2011,32(9):9-11. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%