期刊
POLYMERS
卷 14, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/polym14091837
关键词
rubber; material testing; theology; Poisson's ratio; viscoelasticity
资金
- Tecnologico de Monterrey
- Consejo Nacional de Ciencia y Tecnologia (CONACyT) of the Government of Mexico
This study presents new data on creep and viscoelastic Poisson's ratio of five engineering elastomers at different stress and temperature conditions. The results show that the Poisson's ratio of these elastomers increases with temperature and time.
New data of creep and viscoelastic Poisson's ratio, v(t), of five engineering elastomers (Ethylene Propylene-Diene Monomer, Flouroelastomer (Viton (R)), nitrile butadiene rubber, silicone rubber and neoprene/chloroprene rubber) at different stress (200, 400 and 600 kPa) and temperature (25, 50 and 80 degrees C) are presented. The v(t) was characterized through an experimental methodological approach based on creep testing (30 min) and strain (axial and transverse) measurements by digital image correlation. Initially, creep behavior in axial and transverse directions was characterized for each elastomer and condition, and then each creep curve was fitted to a four-element creep model to obtain the corresponding functions. The obtained functions were used to estimate v(t) for prolonged times (300 h) through a convolution equation. Overall, the characterization was achieved for the five elastomers results exhibiting v(t) increasing with temperature and time from about 0.3 (for short-term loading) to reach and stabilize at about 0.48 (for long-term loading).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据