Partial slip contact modeling of heterogeneous elasto-plastic materials

Dong, Qingbing; Zhou, Kun; Chen, W. Wayne; Fan, Qi

doi:10.1016/j.ijmecsci.2016.05.018

Cited by 28 publications

(7 citation statements)

References 57 publications

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“…Dong et al [18] studied the contact responses using partial slip contact model, and a semi-analytic method was used to investigate the pressure, tangential tractions, plastic zones and subsurface stress fields among the contact bodies. The contact pressure and sliding in a pair of structures in a relative motion are complex and time-and location-dependent.…”

Section: Distribution Of Local Contact Pressure and Local Sliding Dismentioning

confidence: 99%

A Numerical Study on Contact Condition and Wear of Roller in Cold Rolling

Jin

Wang

Jiang

et al. 2017

Metals

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An accurate determination of the contact pressure and local sliding in a cold rolling process is an essential step towards the prediction of the roller's life due to wear damage. This investigation utilized finite element analysis to quantify the local contact pressure and local sliding over the rolling bite in a plate cold rolling process. It was the first study to quantify the local sliding distance in a rolling process using the Finite Element Analysis (FEA). The numerical results indicate that the local contact pressure over the rolling bite demonstrates a hill profile, and the peak coincides with the neutral plane. The local sliding distance over the rolling bite demonstrates a double-peak profile with the two peaks appearing at the forward slip and backward slip zones respectively. The amplitude of sliding distance in the backward slip zone is larger than that in the forward slip zone. A stick zone was confirmed between the forward slip and backward slip zones. According to a parametric study, the local contact pressure and sliding distance decrease when the thickness reduction is reduced or the diameter of the roller is decreased. The location of the neutral plane always presents at the rolling exit side of the rolling bite's center. The size of the stick zone enlarges and the sizes of slip zones shrink significantly when the friction coefficient is increased. Finally, a novel concept of wear intensity was defined to examine the wear of the roller based on the local contact pressure and local sliding distance. The results show that a two-peak wear response exists in the backward and forward slip zones. The magnitude of the wear in the backward slip zone is larger than that in the forward slip zone. For a given roller and blank material combination, using a smaller thickness reduction, a smaller diameter roller and a higher friction coefficient condition can reduce the wear of the roller for a single rolling cycle. The current paper develops an understanding of rolling contact responses to the wear of the roller in rolling process. The research method can also be applied to study other rolling or sliding wear problems.

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Section: Distribution Of Local Contact Pressure and Local Sliding Dismentioning

confidence: 99%

A Numerical Study on Contact Condition and Wear of Roller in Cold Rolling

Jin

Wang

Jiang

et al. 2017

Metals

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“…In recent years, several groups have reported SAMs capable of handling problems involving coupled stress fields in inhomogeneous materials and beyond in the tribology fields. For example, Amuzuga et al 16 and Zhang et al 17 used an elastoplastic contact model to investigate the effect of inhomogeneities on the distributions of plastic strain and residual stress; Wang et al 18 and Dong et al 19 modeled inhomogeneities in partial slip contacts; Wang et al 20 studied the elastohydrodynamic lubrication of inhomogeneous materials; Dong et al 21,22 investigated the contact behaviors of multilayered structures; thermal effects are involved in the contact model of inhomogeneous materials proposed by Yang et al 23 ; creep contact can also be investigated by using the SAM. 24 As mentioned above, the EIM is utilized for tackling the inhomogeneity problem in SAMs.…”

Section: Introductionmentioning

confidence: 99%

“…Figure19. von Mises stress distribution of the material containing single compliant inhomogeneity under a frictionless point contact loading.…”

mentioning

confidence: 99%

Numerical methods for solving the equivalent inclusion equation in semi-analytical models

Yan

Zhang

Jiang

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Equivalent inclusion method is the basis for semi-analytical models in tackling inhomogeneity problems. Equivalent eigenstrains are obtained by solving the consistency equation system of the equivalent inclusion method and then stress disturbances caused by inhomogeneities are determined. The equivalent inclusion method equation system can only be solved numerically, but the current fixed-point iteration method may not be able to achieve deep convergence when the Young's modulus of inhomogeneity is lower than that of the matrix material. The most significant innovation of this paper is to reveal the non-convergence mechanism of the current method. Considering the limitation, the Jacobian-free Newton Krylov algorithm is selected to solve the equivalent inclusion method equation. Results indicate that the new algorithm has significant advantages of computing accuracy and efficiency compared with the classic method.

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“…Lately, the effect of inhomogeneities on the stress-strain fields of an elasto-plastic half-space was analyzed by Amuzuga et al [ 80 ]. In addition, a coupled model considering elasto-plasticity, inhomogeneities, and partial slip in contact of materials was constructed by Dong et al [ 87 ].…”

Section: Introductionmentioning

confidence: 99%

Elasto-Plastic Mechanical Properties and Failure Mechanism of Innovative Ti-(SiCf/Al3Ti) Laminated Composites for Sphere-Plane Contact at the Early Stage of Penetration Process

et al. 2018

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A novel silicon carbide (SiC) continuous ceramic fiber-reinforced (CCFR) Ti/Al3Ti Metal-Intermetallic-Laminate (MIL) composite was fabricated. A high-efficiency semi-analytical model was proposed based on the numerical equivalent inclusion method (NEIM) for analyzing the small-strain elasto-plastic contact in the early stage of the penetration process. The microstructure and interface features were characterized by the scanning electron microscopy (SEM). Quasi-static compression tests were performed to determine the contact response and validate the proposed model. A group of in-depth parametric studies were carried out to quantify the influence of the microstructure. The comparison between results under the sphere-plane and plane-plane contact load indicates that, under the first sphere-plane, the compressive strength and failure strain are both lower and the SiC reinforcement effect on strength is very clear while the effect on ductility is not clear. The maximum plastic strain concentration (MPSC) in the Al3Ti layer is closest to the upper boundary of the central SiC fiber and then extends along the depth direction as the load increases, which are also the locations where cracks may initiate and extend. Moreover, the CCFR-MIL composite shows better mechanical properties when the center distance between adjacent SiC fibers is four times the fiber diameter and the volume fraction of Ti is 40%.

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Partial slip contact modeling of heterogeneous elasto-plastic materials

Cited by 28 publications

References 57 publications

A Numerical Study on Contact Condition and Wear of Roller in Cold Rolling

A Numerical Study on Contact Condition and Wear of Roller in Cold Rolling

Numerical methods for solving the equivalent inclusion equation in semi-analytical models

Elasto-Plastic Mechanical Properties and Failure Mechanism of Innovative Ti-(SiCf/Al3Ti) Laminated Composites for Sphere-Plane Contact at the Early Stage of Penetration Process

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