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提出一种新的构建流变简单材料力学性能主曲线的移位方法,该方法以移位曲线与参考曲线围成的交叠区域的“面积”为判定要素,推导出移位因子的计算公式.公式形式简单、易于计算;公式所涉及的参量均来自实验数据自身,不用进行插值即可求得移位因子,且得到的移位因子具有唯一性,避免了手动移位主观判断的不确定性及数值移位方法因拟合带来的误差问题.由于推导过程是一种数学计算的过程,因此,只要材料满足流变简单性,则该移位公式均能适用.此外,在构建主曲线时,首次考虑了含有明显峰值的实验曲线的移位情况,使所提出的方法具有更强的适用性.最后,以构建炭黑填充橡胶的动态力学性能主曲线的实例验证了该方法的有效性.
A new method of constructing the main curve of the mechanical properties of the simple rheological material is proposed. The method takes the “area” of the overlap area between the displacement curve and the reference curve as the determining factor and deduces the displacement factor The formula is simple and easy to calculate. The parameters involved in the formula are all from the experimental data itself. The displacement factor can be obtained without interpolation. The displacement factor obtained is unique, avoiding the subjective judgment of manual displacement Uncertainty and numerical shift method due to the error caused by the fit.Due to the derivation process is a mathematical calculation process, so long as the material to meet the rheological simplicity, the shift formula can be applied.In addition, When building the main curve, the displacement of the experimental curve with obvious peak is considered for the first time, which makes the proposed method more applicable.Finally, the main curve of the dynamic mechanical properties of the carbon black filled rubber is verified by the example The effectiveness of the method.