The hydraulic brake rubber hose assembly in operation of the vehicle is subjected to cyclic pressure, periodic bending and torsion as well as combined stress of thermal load. The rubber hose is assembled to form an ethylene-propylene diene monomer rubber layer reinforced by a polyvinyl acetate woven fabric. The endurance tester load rig was used to apply the cyclic stress described above to be run to investigate the failure mechanism in the rubber hose assembly. During the bending and twisting of every 100 thousand cycles, the metal is clamped for fault inspection, thereby compressing the area of the rubber hose assembly of the appliance. The polished portion of the compression hose indicates that EPDM and the 400,000 test cycle are close to the end of the interface layering between the crack initiation fibers of the outer rubber layer. The fracture revealed a relatively weak interface strength. Thus the initial crack gradually grows to the outer rubber skin causing the final breakage of the hose.
  The high-pressure rubber hose is a laminated structure composed of a layer of a pure rubber and a woven fabric composite material having sufficient strength and large deformation against excessive radial expansion, wherein the woven fabric layer is wrapped with a wrap film and the filling is inclined to each other and The predetermined helix angle of the complex periodic pattern. The numerical analysis of the numerical details of the woven fabric layer results in a large number of finite elements, so that the woven fabric layer has traditionally been simplified to the isotropic material properties of the isotropic cylindrical belt braided tread.

However, this simple model leads to numerical prediction and design with suspicious reliability. In this context, this document relates to the development of an internal module, appliance fittings for water pipe products which is capable of being interfaced with commercial finite element programs at the level of traditional simple models, for the reliable large number of rubber hoses with the number of components Deformation analysis. The internal module is capable of not only automatically generating a 3-D unit cell model of the woven fabric layer, but by superimposing the finite element evaluation of the severe unit cell to homogenize the overlay method based on the analysis of the properties of the orthotropic material. The effectiveness of the reliability of the internal modules and homogenization methods was verified by illustrative numerical experiments.