J‐integral analysis of cord‐rubber serpentine belt using neural‐network‐based material modelling

Abstract

A B S T R A C T A known factor that limits the performance of automotive front-end accessory serpentine belt drive is cracking of the elastomer located in the rib tip. In this paper, fracture experiments were conducted using single-edge notched tension (SENT) specimens to study the fracture behaviour of a belt rib compound. A finite-element modelling method utilizing singular elements for crack in rubber solid was proposed and implemented in both planestress and 3D solid models using ABAQUS. A newly developed neural-network-based model was used to represent a nonlinear elastic belt rib rubber compound. The crack finite-element model, along with the neural-network-based material model, was verified with analytical and experimental results. A global-local finite-element procedure was developed to evaluate the J-integral for mode-I through-the-thickness crack in V-ribbed belt rib. Effects of pre-crack length, pulley pre-load and backside pulley displacement were investigated.

Mode-I fatigue crack growth analysis of V-ribbed belts

“…This is because of the increase in load distribution at the crack tip. This phenomenon is in conformance to the findings in Song et al [4]. rise to larger displacements at the boundaries of the local model, thereby resulting in larger crack opening at the rib tip, and thus a larger value of the J-integral.…”

“…The temperature effects on stresses, strains, and belt-pulley contact slip rates were studied in detail. In another study, Song et al [4] reported a neural network based rubber material model to evaluate the J-integrals for different crack lengths. The results were compared with analytical and experimental findings.…”

Summary of Fatigue Life Research Method on Rubber Components

“…Song studied the fracture characteristics of reinforced tip elastomer [5] of transmission belt, the relationship between the crack length, load size and the J integral value. ABAQUS software was used to simulate local structural fracture crack characteristics and transmission rubber material with the characteristics so as to provide a theoretical reference for the belt life prediction.…”

Finite element analysis of V-ribbed belt/pulley system with pulley misalignment using a neural-network-based material model

“…The merit of the method is that it can approximate the test data much more accurately than any available model. Song et al [14,15] verified the accuracy of this model through analysis of cord-rubber serpentine belt. This methodology, hence, is adopted in the present study to derive the hyperelastic constitutive material law for rubber compound used in ABAQUS/Explicit algorithm.…”