Abstract:

A three-layer heterogeneous tube is modeled for the fiber braided hoses based on the finite deformation theory of continuum mechanics and the hyper-elastic theory. Relationship between the stresses and the deformation with internal pressure is obtained. Mechanical behaviors such as deformation, stress distribution and failure strength are analyzed. The effect of materials and geometric factors of the hoses such as modulus of the fibers and axial extension of the hose on its deformation and strength is discussed.

Key words: fiber braided; high pressure rubber hoses; hyper-elastic; failure strength; mechanical behavior