Experimental and Numerical Analysis of the Tendon Repair Process Using Tubular Braided Fabrics

Ochola, Jerry; Malengier, Benny; Daelemans, Lode; Githaiga, John; Langenhove, Lieva Van

doi:10.1515/aut-2017-0007

Cited by 4 publications

(5 citation statements)

References 24 publications

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“…The results show that the analytical equation can be used to predict the flexural bending stiffness of biaxial braided structures as shown by the close conformity of the profiles of the curves (Figure 8(b)). This was established using the RMSE (4) and MAPE (5). The data indicated that the 52.5 θ =  structure had a error margin with analytical data of RMSE 0.565 = , and MAPE 0.038 = − , this implies that the data had a better fit with the analytical data ( RMSE 0.565 = ) and also a better forecast ( MAPE 0.038 = −…”

Section: Verification Of Fe Modelsmentioning

confidence: 96%

“…Braided structures have been used in diverse fields and for myriad applications [1][2][3]. In the medical fields, stents are mainly used for support in annular structures and their potential in flexor tendon repair has been explored, [4,5]. In order to develop a braided structure suitable for possible application in tendon repair, flexural bending is a crucial deformation parameter that could be considered.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Investigation of Flexural Bending in Biaxial Braided Structures for Flexor Tendon Repair

Ochola¹,

Malengier²,

Langenhove³

2020

JBiSE

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Flexor tendon repair has conventionally been done by suturing techniques. However, in recent times, there have been attempts of using fibrous braided structures for the repair of ruptured tendons. In this regard, the numerical analysis of the flexural stiffness of a braided structure under bending moments is vital for understanding its capabilities in the repair of flexor tendons. In this paper, the bending deflection, curvature, contact stresses and flexural bending stiffness in the braided structure due to bending moments are simulated using Finite Element (FE) techniques. Three dimensional geometry and FE models of five sets of biaxial braided structures were developed using a python programming script. The FE models of the hybrid biaxial braids were imported into ABAQUS (v17) for post-processing and analysis. It was established that the braided fabric with largest braid angle, θ = 52.5˚ had the highest flexural deflection while the lowest deflection was seen in the results of the braided structure with the least braid angle, θ = 38.5˚. The results in this study also portrayed that the curvature in biaxial braids will increase with a decrease in the angle between the braided yarns. This was also consistent with the change of bending angle of the biaxial structures under a bending moment. The deformation of the structures increased with increase in the braid angles. This implies that the flexural bending stiffness decreased with increase in braid angle. The stress limits during bending of the braided structures were established to be within the range that could be handled by flexor tendons during finger bending.

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Section: Verification Of Fe Modelsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Flexural Bending in Biaxial Braided Structures for Flexor Tendon Repair

Ochola¹,

Malengier²,

Langenhove³

2020

JBiSE

Self Cite

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“…Conventionally, the helical interlacement of two sets of yarns in a circular manner occurs to produce tubular braid type textured fabric by running one set of yarns in the clockwise direction and the other in an anticlockwise direction [256]. But using 3DP technology, transversal tubular braid texture (maypole braid) simulating helical yarn configuration has been introduced [161].…”

Section: Fabric Structurementioning

confidence: 99%

3D printing technology for textiles and fashion

et al. 2020

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3D printing (3DP) is one of the modern approaches in the field of manufacturing. Although this process has been known for a fair amount of time, only the recent developments have revealed its novel and true potential for applications in different manufacturing sectors. Textile, one of the basic human requirements, does more than just fulfilling the fundamental necessity of covering our body. Integrating 3DP technology in textiles has broadened the horizon of the textile world.This review explores the historical background as well as state-of-the-art developments in 3DP related to textiles and fashion. Basic ideas about fundamental textile substrates, various 3DP technologies related to textiles, different printing devices and tools, materials used as print inks, direct printing of 3D objects on various textile substrates, fabrication techniques of 3D printed textile structures, different process parameters and their impacts, tests and standards, benefits and limitations are the contents of the discussions throughout this paper. It also highlights the future aspects concerning the further implementation of 3DP technology in the textile industry.Overall, the paper draws a picture with an intention to ascertain the undeniable promise of 3DP, despite having some drawbacks, to enrich the future of the textile and fashion industry with an aim to motivate future designers and scientists towards further exploration within this field of knowledge.

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“…Nevertheless, they only investigated the widthwise curling behavior of the plain knitted fabrics based on the suggested geometrical model. Further, Ochola et al have studied the repairing process of the tendon tissues by braided tubular fabrics via modeling the tubular structure [26]. However, there is only a uniaxial loading model considering the real function of the tendon.…”

Section: Introductionmentioning

confidence: 99%

“…Further, Ochola et al. have studied the repairing process of the tendon tissues by braided tubular fabrics via modeling the tubular structure [26]. However, there is only a uniaxial loading model considering the real function of the tendon.…”

Section: Introductionmentioning

confidence: 99%

Simulation and characterization of the mechanical properties of knitted esophageal stents using finite element and mathematical models

Yekrang

Semnani

Seyghlani

2020

Journal of Industrial Textiles

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Esophageal stents are used as a clinical method for the treatment of a wide variety of esophageal diseases. Knitted mesh stents have such advantages as high flexibility and ease of production. In this study, an analytical approach was applied to simulate the weft knitted esophageal stents and to investigate the mechanical behavior of these tubular structures against the axial and circumferential stresses by using finite element (FE) and mathematical models. Then, the mechanical properties of the knitted structures were evaluated while the simulated food bolus was passed through the stent channel. The results demonstrated that the FE model had a good performance in simulating the mechanical properties of the esophageal knitted stents. The error of the prediction performance of the FE models was between (10–16)% and (7–11)% for the longitudinal and circumferential directions, respectively. Simulation of the food bolus passage also demonstrated that the esophageal PGA stent wall could tolerate a 7.96 kPa force and a strain of 65% by food bolus; so, it could mimic the real state of esophagus during its application. This model could be applied to design and investigate the mechanical behavior of the knitted stents in clinical application conditions.

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Experimental and Numerical Analysis of the Tendon Repair Process Using Tubular Braided Fabrics

Cited by 4 publications

References 24 publications

Numerical Investigation of Flexural Bending in Biaxial Braided Structures for Flexor Tendon Repair

Numerical Investigation of Flexural Bending in Biaxial Braided Structures for Flexor Tendon Repair

3D printing technology for textiles and fashion

Simulation and characterization of the mechanical properties of knitted esophageal stents using finite element and mathematical models

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