植物纤维淀粉餐盒力学性能仿真及试验验证  

Mechanical property simulation and verification of plant fiber and starch dishware

作　　者：郭安福[1] 鹿海洋[1] 李剑峰[1] 李方义[1] 魏宝坤 李建勇[1] 王霞[1] 

机构地区：[1]山东大学机械工程学院 高效洁净机械制造教育部重点实验室,济南250061 [2]山东九发生物降解工程有限公司,烟台264100

出　　处：《农业工程学报》2010年第7期91-95,F0004,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家“十一五”科技支撑计划资助项目(2006BAF02A01-03,2006BAF02A08);山东省优秀中青年科学家奖励基金资助项目(2006BS05010);山东省软科学项目(200906056-1,2009RKA048)

摘　　要：生物质类包装产品的力学性能研究是目前国内外生物质类产品研究的热点。本文通过拉伸试验,获得3种配方的植物纤维淀粉餐盒材料的力学性能参数:弹性模量E、泊松比μ、抗拉强度σb。以力学性能参数为基础,采用有限元法对餐盒的力学性能进行仿真,模拟餐盒在使用过程中的受压状况,确定了餐盒的应力集中情况,并通过餐盒整盒压溃试验进行验证,得出了餐盒压溃过程中的力-位移曲线图,峰值载荷为957N,为餐盒的结构设计、运输和使用提供了理论基础。Biomass materials are the best substitute for those made of plastic packaging materials in the world,widespread application of these materials can control or eliminate the increase of white pollution problem effectively in the world.In this paper,the mechanical properties of three kinds of plant fiber and starch dishware were presented by tensile tests,which included Elastic Modulus,Poisson＇s Ratio and Tensile Strength.Finite element models of the biodegradable dishware were established by using the experimental result of the mechanical properties.The rule of the stress and strain distribution of the plant fiber and starch dishware under outside load was found with finite element method,which was verified by the experimental result,and the force-deformation curve of plant fiber and starch dishware was found.The results is of significance to its design,transport and application.

关 键 词：有限元法 可降解材料 应力 应变 包装材料 

分 类 号：TB484[一般工业技术—包装工程] S210.3[农业科学—农业机械化工程]