The Analysis Of Aerated Bias Tyre's Interlaminar Shear Stress And The Study Of The Material Parameters' Influence On The Tyre

In this paper, the properties of rubber-cord composite material are figured out acording to those of the rubbers and the single cord, which are made up of the composite. The setion contour of the bias tire is drawn by means of AUTOCAD, then, AUTOLISP is used to perform the interface between CAD and ANASYS. A 3-D finite element model for a truck bias tyre (9.00-20 16PR) is developed by applying layer element, solid element in ANSYS. The deformation and distributions of stresses and strains in an aerated tire are analysed. The effects of the cord fabric cutting-angle and the material properties on the deformation and stresses are studied.The analysis in this study mainly points to the parts of a tire which are apt to being ruined at its early using peorid. The effects of cutting-angle, cords Yong's modulus and rubbers Yong's modululs on stress and strain distributions are analysed. The interlaminar shear stress of the composite is studied emphatically because it is the most important factor for the interlaminar seperation of the cord fabrics from each other.Some conclusions can first be drawn from the analysis that the tension stress in an aerated bias tire is mainly borne by the cords, and that the outer diameter reduces and the section width increases when the cord angle is increased, and so on. The consistency between the above conclusions and the results of tests and references shows that the FE model developed in this study is reasonable. Therefore, the conclusions drawn from this study, some of which can not easily be come to by test or other means, not only could be used to guide the optimization design of the bias tire structure, but also could provide important clues for resolving the problems of early failure of bias tire and improving its qualities.