A modified elastic foundation contact model for application in 3D models of the prosthetic knee

Pérez-González, Antonio; Fenollosa-Esteve, Carlos; Sancho-Bru, Joaquı́n L.; Sanchez-Marin, Francisco; Vergara, Margarita; Rodríguez-Cervantes, Pablo J.

doi:10.1016/j.medengphy.2007.04.001

Cited by 45 publications

(37 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At this stage, it is important to note that the results reported here, for the case in which the knee is modelled as Ti-UHMWPE prosthesis, are corroborated by those published by Pérez-González et al [19]. In the investigations carried out by Pérez-González et al, the Hertz law was used to evaluate the contact forces, as it is case of presented in this section.…”

Section: Influence Of the Contact Materials Propertiessupporting

confidence: 84%

“…The results reported by Koo and Andriacchi [49] revealed that contact pressure is higher in the lateral than medial compartments and cartilage thicker in the lateral than medial compartments. Pérez-González et al [19] realize that different models have been used in the literature for the simulation of surface contact in biomechanical knee models; however, there is a lack of systematic comparisons of the models applied to simulate a common case, which will provide relevant information about their accuracy and suitability for application in models of the artificial knee. Therefore, these authors performed a comparative study using the Hertz model, the elastic foundation model, and the FE model to evaluate the contact forces at an artificial knee [19].…”

Section: Introductionmentioning

confidence: 99%

“…Pérez-González et al [19] realize that different models have been used in the literature for the simulation of surface contact in biomechanical knee models; however, there is a lack of systematic comparisons of the models applied to simulate a common case, which will provide relevant information about their accuracy and suitability for application in models of the artificial knee. Therefore, these authors performed a comparative study using the Hertz model, the elastic foundation model, and the FE model to evaluate the contact forces at an artificial knee [19]. Lin et al [50] presented a novel surrogate modelling approach to perform computational efficient 3D elastic contact analyses within the multibody dynamic simulations.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of the contact model on the dynamic response of the human knee joint

Machado

Flores

Ambrósio

et al. 2011

Proceedings of the Institution of Mechanical Engineers, Part K:

View full text Add to dashboard Cite

The goal of this work is to study the influence of the contact force model, contact geometry, and contact material properties on the dynamic response of a human knee joint model. For this purpose, a multibody knee model composed by two rigid bodies, the femur and the tibia, and four non-linear spring elements that represent the main knee ligaments, is considered. The contact force models used were the Hertz, the Hunt-Crossley, and the Lankarani-Nikravesh approaches. Results obtained from computational simulations show that Hertz law is less suitable to describe the dynamic response of the cartilage contact, because this pure elastic model does not account for the viscoelastic nature of the human articulations. Since knee can exhibit conformal and non-conformal contact scenarios, three different geometrical configurations for femur-tibia contact are considered, that is convex-convex sphere contact, convex-concave sphere contact, and convex sphere-plane contact. The highest level of contact forces is obtained for the case of convex-convex sphere contact. As far as the influence of the material contact properties is concerned, the dynamic response of a healthy and natural knee is analysed and compared with three pathological and two artificial knee models. The obtained results demonstrate that the presence of the cartilage reduces significantly the knee contact forces.

show abstract

Section: Influence Of the Contact Materials Propertiessupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of the contact model on the dynamic response of the human knee joint

Machado

Flores

Ambrósio

et al. 2011

Proceedings of the Institution of Mechanical Engineers, Part K:

View full text Add to dashboard Cite

show abstract

“…(7.2) was used for multibody dynamic simulation of knee contact mechanics in a number of papers [24,77]. Formula (7.1) was considered in [79] within a discussion of the analytical models employed for describing articular contact.…”

mentioning

confidence: 99%

“…Moreover, FE models are not confined to simple geometrical configurations, which are necessary for deriving analytical solutions like those used in the rigid contact model. However, in comparison [79] with simple deformable contact models, FE models are expensive in time and resources for the simulation of the knee joint dynamics in real activities such as the gait cycle.…”

mentioning

confidence: 99%

Articular Contact Mechanics

Argatov

Mishuris

2015

Advanced Structured Materials

View full text Add to dashboard Cite

In this chapter, an asymptotic modeling methodology for tibio-femoral contact is developed, based on the asymptotic models of frictionless unilateral contact interaction between thin cartilage layers. In Sect. 7.1, the normal contact forces, which are needed for multibody dynamics simulations, are determined analytically based on the exact solution for elliptical contact between thin cartilage layers generally modeled as viscoelastic incompressible layers. In Sect. 7.2, the equivalent HuntCrossley model for articular contact is developed in the framework of the short-time contact model for thin bonded biphasic layers.

show abstract

Biomechanics of the Musculoskeletal System

Dao¹,

Tho²

2014

Biomechanics of the Musculoskeletal System

View full text Add to dashboard Cite

A modified elastic foundation contact model for application in 3D models of the prosthetic knee

Cited by 45 publications

References 19 publications

Influence of the contact model on the dynamic response of the human knee joint

Influence of the contact model on the dynamic response of the human knee joint

Articular Contact Mechanics

Biomechanics of the Musculoskeletal System

Contact Info

Product

Resources

About