纸浆模塑材料的弹黏塑性模型及实验验证  

Nonlinear Elastic Viscoplastic Model of Molded Pulp Material and its Experimental Verification

作　　者：林冬鸣 陈永铭 张新昌 

机构地区：[1]江南大学,江苏无锡214122 [2]苏州爱绿纸塑有限公司,江苏苏州215011

出　　处：《中国造纸学报》2008年第2期91-95,共5页Transactions of China Pulp and Paper

基　　金：印刷包装材料与技术北京市重点实验室开放研究课题基金(KF060403)资助项目

摘　　要：在准静态等速拉伸实验得出的纸浆模塑材料应力-应变曲线的基础上,分析了纸浆模塑材料在变形过程中存在的初始弹性阶段、黏塑性阶段和断裂破坏阶段,建立了表征纸浆模塑材料弹黏塑性的流变模型。2种不同纸浆模塑材料的实验表明,实验结果与理论模型比较吻合。Based on the analysis of a curve of stress versus strain from the constant rate quasi-static experiment, it was found that the deformation of molded pulp material is divided three phases： elastic deformation period, viscoplastic deformation period and fracture period. Then a general rheological model of nonlinear elastic viscoplasticity was developed. The experiment results of two different molded pulp materials showed that the theoretical model is well agreed with the test results.

关 键 词：纸浆模塑 弹黏塑性 流变模型 

分 类 号：TS761.7[轻工技术与工程—制浆造纸工程]