On the finite element analysis of contacting bodies using submodelling

Rajasekaran, R.; Nowell, D.

doi:10.1243/030932405x7836

Cited by 26 publications

(8 citation statements)

References 15 publications

(15 reference statements)

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“…20 This process becomes particularly heavy when wear is simulated over a long period of time and/or in case of complex three-dimensional (3D) geometries. Despite a discrete number of papers have discussed the use of submodeling to efficiently solve the contact mechanics, 5,[21][22][23][24][25][26] only a few studies are focused on the application of this technique to wear analyses.…”

Section: Introductionmentioning

confidence: 99%

Application of the finite element submodeling technique in a single point contact and wear problem

Curreli

Puccio

Mattei

2018

Numerical Meth Engineering

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Summary Finite element simulation is a powerful tool to study and predict the wear behavior of different mechanical systems. However, the high computational cost required to obtain accurate numerical solutions is a crucial aspect especially for large and complex models. The present study proposes a possible solution to overcome this limitation by exploiting the potentiality of the submodeling technique, whose application to wear problem is still rare in the literature. A global‐local approach for wear analysis is presented and validated for a simple pin‐on‐disk wear test. In a preliminary step, different submodeling techniques were implemented and compared. They differed for the quantity (nodal forces and/or displacements) transferred from the global model to the local one. Numerical models have been developed in Ansys® mechanical APDL using its new wear simulation and mesh smoothing routines. Results suggest that the proposed strategy can significantly reduce the computational cost of finite element wear models. Some interesting points on the use of submodeling in contact problems are also discussed.

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Section: Introductionmentioning

confidence: 99%

Application of the finite element submodeling technique in a single point contact and wear problem

Curreli

Puccio

Mattei

2018

Numerical Meth Engineering

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“…Different contact algorithms within ABAQUS can be used to describe the stick-slip behaviour at the mating surface of a press-fitted axle. Rajasekaran et al [32] found that the penalty approach with an appropriate maximum elastic slip tolerance could provide a result that was as good as that of the Lagrange multipliers approach, whilst avoiding the contact convergence problem. This study employed the penalty approach, and the distribution of the axial slip range with different slip tolerances is shown in Fig.…”

Section: Maximum Elastic Slip Tolerancementioning

confidence: 99%

Experimental and numerical study on fretting wear and fatigue of full-scale railway axles

Zou

Zeng

et al. 2020

Rail. Eng. Science

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This study investigated the fretting wear and fatigue of full-scale railway axles. Fatigue tests were conducted on full-scale railway axles, and the fretting wear and fretting fatigue in the fretted zone of the railway axles were analysed. Three-dimensional finite element models were established based on the experimental results. Then, multi-axial fatigue parameters and a linear elastic fracture mechanics-based approach were used to investigate the fretting fatigue crack initiation and propagation, respectively, in which the role of the fretting wear was taken into account. The experimental and simulated results showed that the fretted zone could be divided into zones I–III according to the surface damage morphologies. Fretting wear alleviated the stress concentration near the wheel seat edge and resulted in a new stress concentration near the worn/unworn boundary in zone II, which greatly promoted the fretting crack initiation at the inner side of the fretted zone. Meanwhile, the stress concentration also increased the equivalent stress intensity factor range ΔKeq below the mating surface, and thus promoted the propagation of fretting fatigue crack. Based on these findings, the effect of the stress redistribution resulting from fretting wear is suggested to be taken into account when evaluating the fretting fatigue in railway axles.

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“…Romera et al [6] deals with the edge effects in angle-ply composite laminates subjected to tensile test and uses sub-modeling technique to achieve numerical results. Rajasekaran and Newell [7] uses an example of a partial slip Cattaneo-Mindin problem to highlight the implication of selecting different contact algorithms in solving a contact problem by a sub-modeling approach. Lippert et al [8] mandate the use of advanced physical submodels in computing the physical processes occurring during cold starting of diesel engines.…”

Section: Introductionmentioning

confidence: 99%