Analysis On The Basic Mechanical Properties And Deformation Behavior Of Three-dimension Angle Interlock Fabric

3D Angle interlock fabric is a kind periodic structure with excellent mechanical properties, it is regarded as promising material in aviation, aerospace, shipbuilding, construction and weaponry industry. This paper we studied the radial enhanced 3D angle interlock fabric, The basic mechanical properties and deformation behavior were studied by experimental test and numerical simulation respectively.First of all, the three-dimensional structure of Angle interlock fabric was observed and analyzed meticulously by stereomicroscope(OLYMPUS(SZ-STU2)). According to the finite element mode proposed, we Determined the specific parameters of the finite element calculation model of the fabric. the three-dimensional finite element model of Angle interlock fabric was established by ABAQUS.Secondly, comparison was made between the experiment test and numerical simulation on tensile deformation, the loading and unloading modulus of fabric, the load deformation and the amount of residual deformation are studied under cyclic loading. The results show that With the increasing of load, the deformation of fabric is approximately linear, and the increase of the residual deformation after unloading is far lower than the increase of fabric deformation.once again, shear experiments were made with shearing equipment that was designed independently. the deformation mechanism of fabric, shear deformation in the deformation, residual deformation, Deformation retention rate and the shear modulus were analyzed. Compared with the tensile deformation of the fabric, it is found that the fabric is more prone to deformation under shear loading.Finally, comparative analysis of the torsional deformation of the fabric is made by the experimental tests and numerical simulations. for the curing process, simple experiment was carried on molding process.The research work of this paper has certain technical reserve value for the future of the fabric’s pre deformation, the curing of the pre deformed fabric and the performance evaluation of the curing parts.