## 1 Introduction
A scanning electron microscope was used to examine the differences in the microstructure of the GDL surface that has been squeezed with the region of the bipolar layer's rib. The physical properties regarding the compressed region of the GDL are distinct from the uncompressed region just after the construction of the FC. More cracks in the GDL surface of the region are visible on the rib [6]. To study the microstructure of GDL-based carbon fiber materials, a synchrotron X-ray at varying compression degrees for imagery is utilized. The superior clarity of the beam of the synchrotron X-ray and the large spatial resolution regarding the corresponding imaging tool are useful for producing tomographic data that reproduce, with great precision, even the fiber's most minor morphological information. These data did apply for estimating some of the microstructure's effects in both gas and liquid transport. Such fibers are twisted near the sides of the flow field channel's form and turn up with improved concentration rates. Fiber ends protrude 295 mm through the pipe's volume at a compression degree of 29 percent, where they theoretically impair the gas flow and shape barriers toward water droplets that are transferred into the flow range tube [7]. The consequences regarding the stiffness of the anisotropic bending of GDLs on the efficiency of FCs are examined, including metallic bipolar plates for the polymer electrolyte membrane. To compare the degree of interference of GDLs, compression was calculated. Variation in the cathode channel's depth has been found to influence the observed cell activity rather than the anode channel's depth [8]. A standard carbon paper or fabric GDL remains smooth and the fluid is thus distorted and is imposed within the channel, as the GDL stays squeezed within the plates. Differences in GDL thickness and porosity are due to compression, which influences local transport appearances, as do electrical conductivity, the permeability of gas, and thermal and electrical contact resistances against interfaces with neighboring segments [9]. The flow fields' geometric parameters may have a tremendous impact on the PEM FC's overall activity [10]. CFD was used to analyze FC's performance with varying channel shapes and the diameter of the rib in the direction of the large current operational densities of the PEM. Simulations from the three various channel cross-sections employing related boundary conditions revealed that rib diameter remains one of the most significant factors affecting cell production among the cell's geometrical parameters. Cell performance declined significantly with reducing rib diameter, even though greater reactant flow valuations and inlet velocities were applied [11]. [PERSON] et al. [12] carried out an experimental investigation of metal foam materials with more than 90% porosity as alternative flow fields for PEM-FCs, where the effects of the suggested foam metal flow field on the phenomena of transport coupled with the reactions inside the PEM-FC were studied, employing a (3D) non-isothermal with a multiphase model. In the 3D model, the metal foam flow field's total morphology is taken into consideration after validation with the experimental results. The results show that the metal foam highly enhances the performance of the FC, with the greatest current density distribution with respect to the conventional flow fields of the channel rib. Additionally, the distribution of current and oxygen density within the PEM-FC in the case of the flow field of metal foam shows higher uniformity than in the case of the conventional flow field. The primary purpose of the present work is to analyze and examine the mechanical performance of the PEM-FC during the assembly process with various engineering components of the channel, but with the same border conditions and to stimulate the division and distribution of pressure inside the cell. A CFD form or design of the PEM-FC has been developed, which is performed during the assembly of the FC (bolt assembling).