DEPENDENCE OF THE ULTIMATE PROPERTIES OF A GR-S RUBBER ON STRAIN RATE AND TEMPERATURE
DEPENDENCE OF THE ULTIMATE PROPERTIES OF A GR-S RUBBER ON STRAIN RATE AND TEMPERATURE
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DOI：
10.1002/pol.1958.1203212409
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发表时间：
1958-01-01
影响因子：
3.4
通讯作者：
SMITH, TL
中科院分区：
文献类型：
--
作者：
SMITH, TL
使用Instron拉伸试验机在0.158 × 10− 3和0.158 sec.− 1之间的应变速率和−67.8和93.3°C之间的14个温度下测量未填充GR-S橡胶的拉伸性能。将不同应变速率和温度下的抗拉强度和极限应变叠加，得到两条复合曲线，这两条曲线是约化应变速率的函数。从这种叠加，最终性能的温度依赖性得到。在−53.8 °和71°之间的温度依赖性基本上与通过叠加应力应变曲线获得的相同，并且由威廉姆斯、Landel和Ferry方程给出。从复合曲线和温度函数，拉伸强度和极限应变可以预测在任何应变速率和温度，提供加热和波传播效应是可以忽略的。从应力-应变曲线的初始部分获得线性粘弹性，并由约化应力-应变曲线表示。
The tensile properties of an unfilled GR‐S rubber were measured with an Instron tensile tester at strain rates between 0.158 × 10−3and 0.158 sec.−1and at fourteen temperatures between −67.8 and 93.3°C. The tensile strength and ultimate strain at the various strain rates and temperatures were superposed to give two composite curves which are functions of a reduced strain rate. From this superposition, the temperature dependence of the ultimate, properties was obtained. The temperature dependence between −53.8 and 71° is essentially the same as obtained by superposing the stress‐strain curves and is given by the Williams, Landel, and Ferry equation. From the composite curves and the temperature function, the tensile strength and the ultimate strain can be predicted at any strain rate and temperature, provided heating and wave propagation effects are negligible. The linear viscoelastic properties were obtained from the initial portions of stress‐strain curves and are represented by a reduced stress‐strain curve.