[1]邢力平,张广恒*,臧杰,等. 亚微米木基生物弹性材料医用夹板弹性模量研究和建模分析[J].西北林学院学报,2017,32(1):272-278.[doi:10.3969/j.issn.1001-7461.2017.01.44]
　XING Li-ping,ZHANG Guang-heng*,ZANG Jie,et al. Elastic Modulus and Modeling Analysis of Submicron Wood-based Bio-medical Elastic Material Splint[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2017,32(1):272-278.[doi:10.3969/j.issn.1001-7461.2017.01.44]
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 亚微米木基生物弹性材料医用夹板弹性模量研究和建模分析()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第32卷
期数:
2017年第1期
页码:
272-278
栏目:
出版日期:
2017-01-31

文章信息/Info

Title:
 Elastic Modulus and Modeling Analysis of Submicron Wood-based Bio-medical Elastic Material Splint
文章编号:
1001-7461(2017)01-0272-07
作者:
 邢力平; 张广恒*; 臧杰; 张力航; 李伟
 （东北林业大学，黑龙江 哈尔滨 150040)
Author(s):
 XING Li-ping; ZHANG Guang-heng*; ZANG Jie; ZHANG Li-hang; LI Wei
 (Northeast Forestry University,Harbin,Heilongjiang 150040,China)
关键词:
 ; 微观结构; 亚微米刨花; 弹性模量; 模压; 高柔韧性; 模压医用夹板
Keywords:
 ; microstructure;  submicron shaving;  elastic modulus;  molded;  high flexibility;  medical molded plywood
分类号:
S781.2
DOI:
10.3969/j.issn.1001-7461.2017.01.44
文献标志码:
A
摘要:
 选用亚微米级刨花作为研究对象，结合现代医用夹板设计理论，采用将亚微米刨花压缩的方法制作异型医用夹板，与传统医用夹板相比较从微观结构研究亚微米木基生物弹性材料医用夹板的特性。以微观角度探索亚微米木基生物弹性材料医用夹板的形成机理，通过研究木纤维横截面的微观结构特征并提出提高医用夹板柔韧性的方法，采用微米级的切削厚度破坏木材微观结构的六棱形形态，构造出新型的具备高柔韧性的亚微米木基生物弹性材料医用夹板。通过对落叶松及毛白杨2种树种的刨切试验以及模压医用夹板试件的制作，得出模压医用夹板的刨花最优尺寸。对新型医用夹板弹性模量的理论分析，引入在模压医用夹板受到外力之后应力应变存在的关系式，对平面内的弹性模量进行积分，求出其理论弹性模量，并得出理论上定向铺装的亚微米刨花板的弹性模量在其主方向上5倍于普通亚微米刨花板的结论。通过研究模压医用夹板弹性模量提高的原因，给出影响模压医用夹板弹性模量除亚微米刨花的大小、密度、施胶量、胶合是否严密以外的其他影响因素，引入微观结构孔穴比系数、亚微米木基生物弹性材料医用夹板的压缩程度系数、亚微米木基生物弹性材料医用夹板与胶料的胶合系数以及亚微米木基生物弹性材料医用夹板的不直系数，并将对其强度产生影响的相关系数代入计算公式，推导出亚微米木基生物弹性材料医用夹板弹性模量的力学表达式。提出亚微米木基生物弹性材料医用夹板的压缩量也会影响模压医用夹板强度的观点，通过代入公式得出模压后亚微米木基生物弹性材料医用夹板的密度对模压医用夹板强度的影响。
Abstract:
 It is a frontier research to use biomedical materials as medical assistant tools and substituted materials in modern biomedical technology.This paper selected micron or submicron shavings as research objects,combined with the design theory of modern medical splint,using the method by which the micron or submicron shavings were compressed to abnormal shaped medical splints,and compared with traditional medical splint to find out the features of wood-based bio-medical elastic material splints.Based on relative fundamental theory,the formation mechanism of wood-based bio-medical elastic material splint was probed from the microstructure observation.The microstructure of the cross section of the woody fibers were observed,methods to promote the the flexibility of the splint were proposed.The six prism shaped wood microstructure was deconstructed by micron level cutting to construct the new kind of high flexibility submicron wood-based bio-elastic material medical splint.Then the best size of medical molded plywood wood shavings was inferred through the production of molded medical splint specimen and sliced experiment of two kinds of timbers,including larch and tomentosa.In order to derive its theoretical elastic modulus,the paper introduced the stress-strain relations and integrated the elastic modulus on the plane.Through theoretical analysis on elastic modulus of the new medical splint,it was concluded that the common sub-micron particle elastic modulus was one fifth of the main direction.By analyzing the reasons for the increase of elastic modulus of medical molded plywood,other factors were also given,such as the size of wood shavings,density,glue amount,and gluing strength.New coefficients were introduced,such as un-straight ratio,which were then used to introduce the mechanical expression of elastic modulus.This process provided a basis for the micromechanics theory of composite elasticity for the medical splint.It was proposed that the amount of compression which affected the strength of medical molded plywood would be described quantitatively.

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备注/Memo

备注/Memo:
 收稿日期：2016-04-25修回日期：2016-07-27
基金项目：国家自然科学基金项目（31170517）；黑龙江省自然科学基金（C201336）。
作者简介：邢力平，女，硕士，教授，研究方向：机械设计及理论（林业机械与木工机械）。E-mail:xlp0413@163.com
*通信作者：张广恒，男，硕士研究生，研究方向：机械设计及理论（林业机械与木工机械）。E-mail:18845649787@163.com
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