Cyclic tensile response of a polyurethane material

Yizhou Nie, Purdue University

Abstract

Polyurethane is one of the most widely used polymer materials in the world. With the increasing demand of polyurethane, its mechanical behaviors are particularly of interest. In particular, the response of the material under a quasi-static loading being subject to an impact load. To delineate the effect of rate change on the mechanical response of polyurethane, a tensile experiment was designed where the specimen is initially subjected to quasi-static tensile loading and then to high-rate cyclic tension within the same experiment. Constant strain-rate experiments at both quasi-static and high strain rates are also conducted. The analysis of the results leads to the precise determination of rate effects on the tensile behavior of this material. Finally, the strain rate sensitivity for this polyurethane material is observed.

Degree

M.S.A.A.

Advisors

Chen, Purdue University.

Subject Area

Mechanics

COinS