Constitutive Equation of flexible media and Simulation Method

柔性介质本构方程及仿真方法

• 批准号: 12650083
• 负责人: SHIMA Susumu
• 金额: $ 2.24万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650083/
• 关键词: Flexible Medium; MECHANICAL PROPERTIES; TENSILTE TEST; HUMIDITY; CONSTITUTIVE EQUATION; SIMULATION; THIN FILM; 紙; 柔軟体; 紙の機械的性質; 湿度; 塑性異方性; 圧縮性; 搬送

A Study of Theory for Analysis of Deformation Behavior in Conveyance of Flexible Matters "Flexible matters" in this project refer to paper, thin film or other flexible objects, and "conveyance" refers to their movement due to the rotation of the rollers in printers or copying machines; transferring of paper by belts such as in bill dispensers is also categorized herein.In this project, we have set the following two objectives with a view to establishing an analyzing system for the deformation behavior of "paper" during conveying process as a final goal: the first is to develop constitutive equations that govern elasto-plastic deformation of the paper when transferred by rollers or belts; the second to develop a numerical analysis system for simulating behavior of those flexible structures during conveyance. The obtained results are as follows:1. We made clear the effect of toner that coats the surfaces of the paper on the elastic modulus of the paper by tensile test, bending and compression by mico-compression test; bending characteristics depended on the direction of bending.2. We developed a method of measuring the above material characteristics; and then we built up fundamental equations that describe the anisotropic behavior during plastic deformation. This could be incorporated into the analysis of behavior during conveyance.3. We investigated and made clear the effect of temperature and humidity on Young's modulus of the paper.4. To investigate the yield and constitutive behavior of the paper, we performed compression of the paper in its thickness direction and measured the relationship between compression condition and the plastic deformation.We developed constitutive equations of the paper that describe its deformation during conveyance, and calculated the stress state during deformation. We compared the results with experimental ones and discussed the viability of the equations.

在本项目中，对柔性问题“柔性问题”运输中变形行为的理论的研究是指纸张，薄膜或其他柔性物体，“运输”是指由于打印机中的滚筒或复制机器的滚动旋转而引起的； transferring of paper by belts such as in bill dispensers is also categorized herein.In this project, we have set the following two objectives with a view to establishing an analyzing system for the deformation behavior of "paper" during conveying process as a final goal: the first is to develop constitutive equations that govern elasto-plastic deformation of the paper when transferred by rollers or belts;第二个开发数值分析系统，用于模拟运输过程中这些柔性结构的行为。获得的结果如下：1。我们通过拉伸测试，通过MICO-Compression检验来清楚地清楚碳粉对纸张表面的效果。弯曲特性取决于弯曲的方向2。我们开发了一种测量上述材料特征的方法。然后，我们构建了基本方程，这些方程描述了塑性变形过程中各向异性行为。这可以将其纳入运输过程中的行为分析3。我们研究并清楚地表明了温度和湿度对杨氏模量的影响4。为了研究论文的产率和本构行为，我们以其厚度方向进行了对论文的压缩，并测量了压缩条件与塑性变形之间的关系。我们开发了论文的组成型方程，这些方程描述了其在运输过程中的变形，并计算了变形过程中的应力状态。我们将结果与实验结果进行了比较，并讨论了方程的可行性。