Hello Shabas Ahammed.

The coefficient is certainly the same for all applications, but the formulas for obtaining the properties change the use of Poisson.

In my research, the same coefficient was able to accurately represent the simulated tensile and flexure results in fiber-reinforced polymer composite material.

I suggest looking for more information depending on your need and the specific material at hand. The correct coefficient depends on the combination of the composite and its geometry, especially for sandwich panels, if applicable.

Thank you for your valuable comment Marvin B. M. Sales