Tensile properties of a polymer-based adhesive at low temperature with different strain rates

The tensile properties of a polymer-based adhesive subject to different strain rates at low temperature were investigated. Experimental results showed that the strength of adhesive increased remarkably with the increase of strain rate and decrease of temperature. According to the results, the strength of adhesive at low temperature (−40 °C) and high strain rate increases as compared with that at room temperature and the same strain rate. The effect of strain rate and low temperature on strength of adhesive is not simply superimposed. Meanwhile the coupling effects on strain rate and low temperature to the tensile strength, failure strain, Young's modulus, and fracture energy are also discussed in this paper. A constitutive model of adhesive at high strain rate and low temperature is proposed.