**2.1 Electrospun nanofibrous Mats under biaxial tension**

The nanofibrous mats can be used as freestanding electrodes in energy storage devices. These mats have non uniform material properties [3] with each and every single fiber having nonlinear characteristics. The research came up with two macroscopic continuum models with uniform or oriented nanofibre distribution to exactly replicate the nanofibrous mats under biaxial tension. The mechanical response of electrospun SF/PCL nanofibrous mats was explored. The model simulated by FEM exposed the deformation of nanofibrous mats and the gradual damage mechanism along with the microstructure.
