Performance evaluation of cord material models applied to structural analysis of tires

Abstract

Tires are, in essence, a composite structure made of reinforced elastomers. As in other composite structures, the accuracy of finite elements (FEs) in predicting the performance of a tire is highly dependent on the validity of the material models chosen to describe the mechanical behavior of its constituents. This paper concentrates on the material modeling of tire reinforcements, and analyzes several material models, namely linear, Yeoh and Marlow, which are quite common in these investigations. A realistic tire is considered as a general system and the most relevant results are discussed concerning precision, computational efficiency and complexity in parameters identification. The advantages of non-linear material models, especially of the Marlow model, are outlined. To the authors' knowledge, no study has addressed the abovementioned aspects of the application of tire cord models in FE analysis of tires in such detail or directly compared the performance of cord models in a realistic example.

Effect of Steel Cord Tension During the Lapping on Steel Cord Straightness After Lapping

“…This grid construction feature was presented in (Kalent'yev & Tarasov, 2010). Other examples of mesh construction and model definition were presented in (Jin et al, 2009, Gattesco et al, 2015, Korunović et al, 2019. After selecting the type of finite element of the mesh and its construction, internal and external influences are specified boundary and initial conditions, such as the initial temperature of the wire, the material of the wires, the coefficient of contact and internal friction, the strain rate (twisting) and other aspects, the direction and speed of twisting of the wire.…”

Tyre Design and Optimization by Dedicated CAD Tyre Model

“…After a DCTM of radial section (that is defined by initial set of design parameters) is created, an axisymmetric FE model is built that is based on DCTM geometry. FE model, described in detail in [37], generally consists of linear axisymmetric quadrilateral and triangular finite elements representing rubber [38], in which axisymmetric rebar elements, representing tyre cord, are embedded [39]. FE model building procedure described here is tailored for Abaqus, but it is generally applicable to any FE program which features an appropriate set of functions related to tyre analysis.…”

Bergström-Boyce vs. Hyperelastic Rubber Models in Structural Analysis of Tires

“…Those components can be either entirely made of rubber or rubber-based composites. If a rubberbased composite is modeled using rebar elements, its rubber matrix is modeled using the same material models that are used for modeling of rubber components [3].…”