Stiffness analysis of the sarafix external fixator  of composite materials

Pervan, Nedim; Mešić, Elmedin; Colic, Mirsad; Vahid, Avdić

doi:10.14419/ijet.v5i1.4912

Cited by 14 publications

(26 citation statements)

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“…In this way, the complete fixator model is updated based on the values of the referent parameters. The referent parameters were selected on the basis of the following ascertainments: their change produces a significant effect on the mass and stability of the fixator; the relations are simply connected with other parameters and allow easy modification of both components and complete fixator; by changing their values, the existing simplicity of the design is retained [10].…”

Section: Development Of a Generative Cad Modelmentioning

confidence: 99%

“…In order to define maximum interfragmental displacement at the fracture site R, displacements of a pair of adjacent points at the end planes of the proximal and distal segments at the fracture site in x, y and z directions were determined [10]. The relative craniocaudal and lateromedial displacements (x and y directions) and axial displacements (z direction) of the observed points are determined by the following relations: The intensity of maximum interfragmental displacement vector at the fracture site R is defined by…”

Section: Structural Analysismentioning

confidence: 99%

“…Therefore, their longitudinal axis coincides with the directions of dominant principal strains ( 1 and 3 ) at the measuring points. In this way, it is possible to determine the intensity of the dominant principal stresses at the measurement points [13,14]. On the other hand, previously derived FEM analysis determined the direction and intensity of the principal stresses and observed that intensities of the other two principal stresses are negligible in relation to the highest principal stress 1 on MP+ and the lowest principal stress 3 on MP-(Tab.…”

Section: Figure 4 Fixator Experimental Setupmentioning

confidence: 99%

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Development and Experimental Verification of a Generative CAD/FEM Model of an External Fixation Device

Mešić¹,

Muminovic²,

Colic³

et al. 2020

Teh. glas. (Online)

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This paper presents the development and experimental verification of a generative CAD/FEM model of an external bone fixation device. The generative CAD model is based on the development of a parameterized skeleton algorithm and sub-algorithms for parametric modeling and positioning of components within a fixator assembly using the CATIA CAD/CAM/CAE system. After a structural analysis performed in the same system, the FEM model was used to follow interfragmentary fracture displacements, axial displacements at the loading site, as well as principal and Von Mises stresses at the fixator connecting rod. The experimental analysis verified the results of the CAD/FEM model from an aspect of axial displacement at the load site using a material testing machine (deviation of 3.9 %) and the principal stresses in the middle of the fixator connecting rod using tensometric measurements (deviation of 3.5 %).The developed model allows a reduction of the scope of preclinical experimental investigations, prediction of the behavior of the fixator during the postoperative fracture treatment period and creation of preconditions for subsequent structural optimization of the external fixator.

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Section: Development Of a Generative Cad Modelmentioning

confidence: 99%

Section: Structural Analysismentioning

confidence: 99%

Section: Figure 4 Fixator Experimental Setupmentioning

confidence: 99%

See 1 more Smart Citation

Development and Experimental Verification of a Generative CAD/FEM Model of an External Fixation Device

Mešić¹,

Muminovic²,

Colic³

et al. 2020

Teh. glas. (Online)

Self Cite

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“…After numerical calculation, postprocessing process had to be carried out. The results of FEM were shown by the software [13,14,15,16,3,4].…”

Section: Structural Analysis Of Car Jackmentioning

confidence: 99%

Development of Parametric CAD Model and Structural Analysis of the Car Jack

Pervan

Muminović

Muminovic

et al. 2019

Adv. Sci. Technol. Res. J.

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The purpose of a car jack is lifting the car and maintaining it at a certain height during different repairs. This paper focuses on the design of car jack, which belongs to the basic equipment of cars. Cars jacks are used mainly for changing tires and small repairs of a car. The aim of this paper was to create a parametric CAD model of a car jack and carry out numerical structural analysis of the car jack using the created parametric CAD model. The development of the parametric CAD model and structural analysis was performed using the CATIA V5 system. This paper describes the modern way of creating more complex mechanisms, which support quick modification of its parameters, and thus the entire design. The whole model of the car jack was parametrized. The stresses obtained by finite element method (FEM) analysis were confirmed with the analytical calculation in characteristic parts of the design, with some exceptions. At the end of the paper, an analysis of the obtained results was performed, on the basis of which specified conclusions were made.

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“…The electro-resistant strain gauges for the steel 6/120LY11 marker manufacturer HBM (Fig. 10) have been used with the following characteristics (Pervan et al, 2017):…”

Section: Stress Analysis Of Main Girder With Strain Gaugesmentioning

confidence: 99%

Theoretical and experimental analysis of the main girder double girder bridge cranes

Delić¹,

Herzegovina²

2019

Int. j. adv. appl. sci.

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When designing cranes, it is necessary to analyze the value of the contraction of the construction, as well as the values of the maximum stresses occurring in the crane construction. Precisely, in this paper, the theoretical and experimental analysis of the contraction and stress condition of the main crane girder in accordance with the standard of crane-general design has been done. The analysis of mechanical appearance in the main girder of the crane is carried out on the basis of the analytic solution of equilibrium equations. The results obtained by the theoretical analysis of the main crane girder were verified by experimental tests on the model of a double girder bridge crane with a capacity of 250 kg. At the end of the work an analysis of the obtained results was performed, on the basis of which specified conclusions were made.

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Stiffness analysis of the sarafix external fixator of composite materials

Cited by 14 publications

References 0 publications

Development and Experimental Verification of a Generative CAD/FEM Model of an External Fixation Device

Development and Experimental Verification of a Generative CAD/FEM Model of an External Fixation Device

Development of Parametric CAD Model and Structural Analysis of the Car Jack

Theoretical and experimental analysis of the main girder double girder bridge cranes

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