In this study, we investigate the effects of temperature and pressure on poisson’s ratio using a poisson’s ratio calculator To understand the low temperature behavior, calculations based on quasi harmonic theory were carried out using measured thermodynamic quantities. Our results show that both temperature and pressure have significant influences on poisson’s ratio, with temperature exhibiting a more pronounced effect.
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Figure 10 shows the temperature dependence of the poisson’s ratio of ipp measured at a constant elongation speed of 20 mm/min (nominal strain rate of 10 /min).
The mechanism of these variations is discussed from physical and chemical points of view.
Hence, this research aims to improve the understanding of the viscoelastic behavior of cement mortar under multiaxial loading as a function of time and temperature. In this paper, a new linear viscoelastic constitutive model is developed that regards young's modulus and poisson's ratio as functions of time, temperature, and hydrostatic pressure Modified logistic functions are employed, which provide appealing mathematical and physical simplicity. This study aims to investigate the effect of temperature on poisson’s ratio in steel and provide insights into its implications for structural analysis and design.
