نتایج جستجو برای: پدیده debonding
تعداد نتایج: 27273 فیلتر نتایج به سال:
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 ...
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...
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...
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...
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...
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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