CREEP RELATION CONSIDERING THE EFFECTS OF HYDROSTATIC PRESSURE AND TEMPERATURE FOR CELLULOSE NITRITE

摘要

The deformation behavior of polymers, unlike metals, is strongly influenced by the hydrostatic pressure. In this paper, the creep relation of polymers, considering the effect of hydrostatic pressure, is deduced by using the concept of tenser function theory, including temperature function of the exponential form. In addition, the validity of the deduced creep relation is discussed in relation to the creep tests, considering the effect of the hydrostatic pressure at the several experimental temperatures and using the cellulose nitrate plate as in previous papers. [References: 10]