印刷纸Z向力学特性研究

应用Laplace变换得出印刷纸z向力学模型的本构方程,并应用该方程分析徐变、回复及应力松弛特性,得到应力时间和应变时间的解析表达式.分析结果表明印刷纸z向的应力应变具有非线性关系,属于材料非线性问题.研究结果为进一步研究印刷纸动态力学特性提供了理论依据.

Study on Z-direction Mechanical Properties of Printing Paper

The integral form of stress and strain constitutive equation of Z-direction mechanistic model of printing paper was obtained by means of Laplace transform. It was used to analyze creep, recovery and relaxation characteristics, and analytic solution describing the stress and time relation as well as the strain and time relation. The analyzed results indicate that the stress-strain constitutive relation Z-direction of printing paper is nonlinear and belongs to material non-linearity question. The researched results could be used to study dynamic mechanical properties of printing paper.