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Comparative analysis of stress distribution in one-piece and two-piece implants with narrow and extra-narrow

Fabricia Teixeira Barbosa1, Luiz Carlos Silveira Zanatta1, Edélcio de Souza Rendohl2

  • 1Department of Implantology, Paulista University, São Paulo, Brazil.

Plos One
|February 4, 2021
PubMed
Abstract

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Stress concentration is when stress intensifies near discontinuities such as holes or abrupt cross-sectional changes in a structural member. This localized stress can often surpass the average stress within the member. The stress distribution in flat bars, either with a circular hole or varying widths connected by fillets, can be determined experimentally using a photoelastic method. The results are based on ratios of geometric parameters like the ratio of the hole's radius to the smaller...
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In studying beam stress distribution, examining an elemental section is essential. To determine the average shearing stress on this face, the calculated shear is divided by the surface area. Importantly, shearing stresses on the beam's transverse and horizontal planes mirror each other, indicating a consistent stress distribution along the upper region of the beam. Notably, shearing stresses are absent at the beam's upper and lower surfaces due to the absence of applied forces in these...
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