Stochastic strength analyses of screws for femoral neck fractures

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00843989%3A_____%2F22%3AE0109449" target="_blank" >RIV/00843989:_____/22:E0109449 - isvavai.cz</a>

Alternative codes found

RIV/61988987:17110/22:A2302FLM RIV/61989100:27690/22:10249112 RIV/61989100:27230/22:10249112

Result on the web

<a href="https://www.mdpi.com/2076-3417/12/3/1015" target="_blank" >https://www.mdpi.com/2076-3417/12/3/1015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/app12031015" target="_blank" >10.3390/app12031015</a>

Result language

angličtina

Original language name

Stochastic strength analyses of screws for femoral neck fractures

Original language description

This paper represents a multidisciplinary approach to biomechanics (medicine engineering and mathematics) in the field of collum femoris fractures, i.e., of osteosyntheses with femoral/cancellous screws with full or cannulated cross-sections. It presents our new numerical model of femoral screws together with their stochastic (probabilistic, statistical) assessment. In the first part of this article, the new simple numerical model is presented. The model, based on the theory of planar (2D) beams on an elastic foundation and on 2nd-order theory, is characterized by rapid solution. Bending and compression loadings were used for derivation of a set of three 4th-order differential equations. Two examples (i.e., a stainless-steel cannulated femoral screw and full cross-section made of Ti6Al4V material) are presented, explained, and evaluated. In the screws, the internal shearing forces, internal normal forces, internal bending moments, displacement (deflections), slopes, and mechanical stresses are calculated using deterministic and stochastic approaches. For the stochastic approach and a “fully” probabilistic reliability assessment (which is a current trend in science), the simulation-based reliability assessment method, namely, the application of the direct Monte Carlo Method, using Anthill software, is applied. The probabilities of plastic deformations in femoral screws are calculated. Future developments, which could be associated with different configurations of cancellous screws, nonlinearities, experiments, and applications, are also proposed.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30211 - Orthopaedics

Project

<a href="/en/project/EF17_049%2F0008441" target="_blank" >EF17_049/0008441: Innovative therapeutic methods of musculoskeletal system in accident surgery</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied sciences

ISSN

2076-3417

e-ISSN

2076-3417

Volume of the periodical

12

Issue of the periodical within the volume

article 1015

Country of publishing house

CH - SWITZERLAND

Number of pages

19

Pages from-to

1-19

UT code for WoS article

000754794700001

EID of the result in the Scopus database

2-s2.0-85123097219