نتایج جستجو برای: پدیده debonding

تعداد نتایج: 27273  

Journal: :Journal of biomechanics 1997
N Verdonschot R Huiskes

The damage accumulation failure scenario is one of the most prominent ones of cemented THA reconstruction, and involves the accumulation of mechanical damage in materials and interfaces due to repetitive dynamic loading eventually resulting in gross loosening. This study addresses this scenario by combining finite element techniques with the theory of continuum damage mechanics, to analyze the ...

Journal: :Clinical oral implants research 2008
Bjarni E Pjetursson Wah Ching Tan Ken Tan Urs Brägger Marcel Zwahlen Niklaus P Lang

OBJECTIVES The objectives of this systematic review were to assess the 5-year survival of resin-bonded bridges (RBBs) and to describe the incidence of technical and biological complications. METHODS An electronic Medline search complemented by manual searching was conducted to identify prospective and retrospective cohort studies on RBBs with a mean follow-up time of at least 5 years. Patient...

Journal: :The Angle orthodontist 2014
Naif A Almosa Ted Lundgren Abdullah M Aldrees Dowen Birkhed Heidrun Kjellberg

OBJECTIVES To clinically evaluate the prevalence of buccal caries and white spot lesions (WSLs) at debonding in governmental and private orthodontic patients, using the International Caries Detection and Assessment System (ICDAS-II) and the DIAGNOdent Pen, and to study the correlation between the two methods. MATERIALS AND METHODS A cross-sectional study was carried out on the nonextracted pr...

Journal: :Epj Web of Conferences 2021

Present study aims to investigate the effect of stress state and loading rates on damage mechanisms in a DP1000 steel using welldesigned series experiments. A specimen family comprising central hole, in-plane shear plane strain samples is applied characterise under well-controlled states. The optimization geometries achieved finite element simulations. To assess influence rate, quasi-static, in...

Journal: :International Journal of Solids and Structures 2002

Journal: :Journal of the Society of Materials Science, Japan 2001

Journal: :Proceedings in applied mathematics & mechanics 2021

This work presents a three-dimensional FE frictional contact formulation with NURBS-enriched elements for the debonding of partially osseointegrated, cementless implants. The model is based on modified Coulomb's friction law [1] that can tangential osseointegrated Here, smooth transition function between two coefficients used to decrease due implant. applied simulate hip implant determine influ...

Journal: :Brazilian Dental Journal 2021

Abstract This study evaluated shear bond strength (SBS), adhesive remnant index (ARI) and fracture mode of chemically mechanically retained ceramic brackets bonded with different composite resins irradiated CO2 laser. The null hypothesis was that laser would have similar SBS values. Ninety human premolars were divided into four experimental groups according to the combination type resin (Transb...

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