J-Integral Analysis of Cord-Rubber Serpentine Belt Using Neural-Network-Based Material Modeling
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 plane-stress 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.
G. Song et al., "J-Integral Analysis of Cord-Rubber Serpentine Belt Using Neural-Network-Based Material Modeling," Fatigue & Fracture of Engineering Materials & Structures, John Wiley & Sons, Jan 2005.
The definitive version is available at http://dx.doi.org/10.1111/j.1460-2695.2005.00917.x
Mechanical and Aerospace Engineering
Keywords and Phrases
Automotive Front-End; Single-Edge Notched Tension (SENT); Elastomers; Rubber
Article - Journal
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