Ildikó-Renáta SZÁVA


32-64 REZULTATE PRELIMINARE PRIVIND UTILIZAREA METODEI CORELĂRII DIGITALE A IMAGINII ÎN STUDIUL IMPLANTURILOR DENTARE

PRELIMINARY RESULTS CONCERNING ON THE IMPLEMENTATION OF THE VIDEO IMAGE CORRELATION METHOD IN THE DENTAL IMPLANTS ANALYSIS

 

The authors, in their preliminary investigations [1; 2; 3], conceived an original testing bench, destined to human mandibles’ strain-state evaluation.

Involving the mentioned testing bench, the authors started to perform some preliminary experimental investigations in several dental implants’ behaviours.

In the described investigations, the authors some useful correlations between the dental implant’s positioning on the mandible, the applied mastication force magnitude and its relative 3D positioning with respect to the implant’s longitudinal axis.

Their next topic will consist in a searching examination of the optimal positioning of the implants, with respect to their loading conditions.

One has to underline the fact that the proposed original methodology will represent in the next period a high-accuracy approach in the evaluation of the strain-state analysis of the dental implants.

 

Keywords: dental implant, testing bench, displacement field, Video Image Correlation

Cuvinte cheie: implant dentar, stand de încercat implanturi, câmp de deplasare, Corelare Digitală a Imaginii (VIC)

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29-81 REZULTATE PRELIMINARE PRIVIND STABILIREA EXPERIMENTALĂ A MĂRIMII COEFICIENTULUI DE FRECARE LA ROSTOGOLIRE

PRELIMINARY RESULTS CONCERNING ON EXPERIMENTAL
DETERMINATION OF THE ROLLING FRICTION COEFFICIENT
The authors, in their preliminary investigations [xxxx], conceived an
original testing bench, in order to establish the magnitude of the rolling friction
coefficient.
Involving the mentioned testing bench, the authors started to perform
some preliminary experimental investigations in several tribo-couples, foreseen
with thin plastic cover layer.
In the described investigations, the authors offer useful correlations
between the thickness of the layers and the magnitude of the rolling friction
coefficient.
Their next topic will consist in combining different tribo-couples, having
covered and uncovered elements, in order to diminish as soon as possible the
magnitude of the rolling friction coefficient.
One has to underline the fact that the proposed original methodology
will represent in the next period a high-accuracy approach in the evaluation of
the rolling friction coefficient, corresponding to different pairs of elements, which
constitute the tribo-couple.
Keywords: rolling friction coefficient, experimental evaluation, original
testing bench
Cuvinte cheie: coeficient de frecare la rostogolire, investigaţii
experimentale, stand original pentru teste

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29-79 TESTE DE ÎNCOVOIERE ASUPRA SANDWICH-ULUI COMPOZIT DE TIP CELLITE

BEND TESTS ON CELLITE COMPOSITE SANDWICH
In this paper, three-point bend tests have been accomplished on
CELLITE composite sandwich to determine the flexural properties of this kind of
structure. Load-deflection distributions until break and at 50 mm deflection have
been carried out on a LR5K PLUS Lloyd’s Instruments materials testing
machine using the NEXYGEN PLUS software.
Keywords: test bending, composite sandwich, Cellite, load-strain
distributions
Cuvinte cheie: test încovoiere, sandwich compozit, fibră celit, distribuţii
forţă-deformaţie

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