Simulation-Based Stress Analysis for a 3D Modeled Humerus-Prosthesis Assembly

Herle, S.; Marcu, C.; Benea, Horea; Miclea, Liviu; Robotin, R.

doi:10.1007/978-90-481-9112-3_58

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…On the other hand, the BCC and the PHS topologies could be applied in trabecular bone grafts for human femoral neck area. Because the physical–mechanical properties of human bones depend on various factors like health, sex, and age [ 59 , 60 ], these lattice structures offer knowledge for developing Ti6Al7Nb implants with physical–mechanical characteristics adapted to patients’ needs.…”

Section: Resultsmentioning

confidence: 99%

Physical–Mechanical Characteristics and Microstructure of Ti6Al7Nb Lattice Structures Manufactured by Selective Laser Melting

et al. 2020

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The demand of lattice structures for medical applications is increasing due to their ability to accelerate the osseointegration process, to reduce the implant weight and the stiffness. Selective laser melting (SLM) process offers the possibility to manufacture directly complex lattice applications, but there are a few studies that have focused on biocompatible Ti6Al7Nb alloy. The purpose of this work was to investigate the physical–mechanical properties and the microstructure of three dissimilar lattice structures that were SLM-manufactured by using Ti6Al7Nb powder. In particular, the strut morphology, the fracture characterization, the metallographic structure, and the X-ray phase identification were analyzed. Additionally, the Gibson-Ashby prediction model was adapted for each lattice topology, indicating the theoretical compressive strength and Young modulus. The resulted porosity of these lattice structures was approximately 56%, and the pore size ranged from 0.40 to 0.91 mm. Under quasi-static compression test, three failure modes were recorded. Compared to fully solid specimens, the actual lattice structures reduce the elastic modulus from 104 to 6–28 GPa. The struts surfaces were covered by a large amount of partial melted grains. Some solidification defects were recorded in struts structure. The fractographs revealed a brittle rupture of struts, and their microstructure was mainly α’ martensite with columnar grains. The results demonstrate the suitability of manufacturing lattice structures made of Ti6Al7Nb powder having unique physical–mechanical properties which could meet the medical requirements.

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Section: Resultsmentioning

confidence: 99%

Physical–Mechanical Characteristics and Microstructure of Ti6Al7Nb Lattice Structures Manufactured by Selective Laser Melting

et al. 2020

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“…incomplete solving of the anatomical and surgical issues: damage in the circumflex nerve, early or secondary migration of the tuberosities as a consequence of a deficient reinsertion [5,27,29]. Despite the increase using of reverse shoulder arthroplasty [29] or introducing new type of shoulder prosthesis [32,33], displaced 3 -parts or 4 -parts proximal humeral fractures are best treated with hemiarthoplasty (especially in elderly). The crucial aspect is to understand the key concepts of well -performing this demanding operation.…”

Section: Resultsmentioning

confidence: 99%

Hemiarthroplasty in Complex Proximal Humeral Fractures Is uncemented methaphyseal corundum blasted titanium humeral stem an efficent alternative?

Scripcaru¹,

Berea²,

Cotrutz³

et al. 2018

Mat.Plast.

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The aim of this experimental study is to reveal the design and characteristics of unipolar shoulder prosthesis type Arrow (Groupe FH�, France) as well as to evaluate the outcome of the proximal humerus fracture treated with this implant. 8 patients with a mean age of 62.5 years were operated with immediate passive rehabilitation and active exercises initiated around day 45. All patients had good results with minimal pain, a mean Constant - Murley score of 74 and an acceptable shoulder amplitude. The clinical success was assured by the anatomic union of the tuberosities around the implant. The Arrow metaphyseal corundum blasted humeral titanium stem assures a perfect osseointegration with optimal stability and is an efficient alternative for shoulder hemiarthroplasty.

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“…To design the sweat glands module, boolean and CAD operations were developed using Creo Parametric and Meshmixer software. Boolean operations offer a versatile tool for editing or modifying the STL format, adding artificial constructions [17,18]. With the design freedom afforded by the SLA process, atypically channels networks were developed for liquid flow.…”

Section: Introductionmentioning

confidence: 99%

Integrating Electronic Components into 3D Printed Parts to Develop a Digital Manufacturing Approach

Turcin¹,

Abdallah²,

Pauritsch³

et al. 2020

IFIP Advances in Information and Communication Technology

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Digital manufacturing (DM) processes such as additive manufacturing (AM) technology, allow a high degree of integrability and functionality of printed parts. In this work, we present a proof of the DM concept focused on the integration approach where a product is developed and embedded with sensors. We also take this example one step further and introduce a method that allows 3D printing of heating elements into the specimens. The thermal characteristics of the developed heaters are investigated, and the results detailed. The novelty relates to a heater prototype injected and solidified into a curved 3D printed channel, which can produce a temperature between 23-46°C on the printed surface of the sample both in a dry and wet environment. This research demonstrates that it is possible to construct parts with embedded electrical structures using the described method.

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Simulation-Based Stress Analysis for a 3D Modeled Humerus-Prosthesis Assembly

Cited by 6 publications

References 8 publications

Physical–Mechanical Characteristics and Microstructure of Ti6Al7Nb Lattice Structures Manufactured by Selective Laser Melting

Physical–Mechanical Characteristics and Microstructure of Ti6Al7Nb Lattice Structures Manufactured by Selective Laser Melting

Hemiarthroplasty in Complex Proximal Humeral Fractures Is uncemented methaphyseal corundum blasted titanium humeral stem an efficent alternative?

Integrating Electronic Components into 3D Printed Parts to Develop a Digital Manufacturing Approach

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