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Smart Materials, Intelligent Structures and Innovative Applications of 3D Printing and Bio-Printing Methods

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Manufacturing Processes and Systems".

Deadline for manuscript submissions: closed (20 March 2024) | Viewed by 3412

Special Issue Editors


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Guest Editor
Department of Manufacturing Engineering, Faculty of Industrial Engineering, Robotics and Production Management, Technical University of Cluj-Napoca, 400114 Cluj-Napoca, Romania
Interests: additive manufacturing; 3D printing; bio-printing; rapid tooling; hybrid manufacturing; topological optimization; computer aided design; computer aided engineering

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Guest Editor
Faculty of Mechanical Engineering and Management, Poznan University of Technology, 60-965 Poznań, Poland
Interests: CAD/CAM/CAE systems; reverse engineering; 3D printing; virtual reality
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Special Issue Information

Dear Colleagues,

The Special Issue on smart materials, intelligent structures and applications of 3D printing and bioprinting methods aims to publish high-quality and original research papers (papers that have not been published elsewhere) based on innovative research that are mainly related to the evolution and trends of 3D printing methods, with applicability in large areas that are related to industrial or medical applications.

The main aim of this Special Issue of the Materials journal is to explore new types of materials that are conceived, developed, and suitable to be used for different types of 3D printing technologies. This can refer to metallic materials, polymers, ceramic materials, or composites or to specific methods that are used for widening the area of materials (by mixing hybrid materials, coatings, immersing, etc.). Irrespective of the type referred to, the use of these materials via 3D printing methods or bioprinting will be presented through the papers that are going to be published in this Special Issue.

Also of interest in this Special Issue are the conception and development of different types of lattice structures to decrease the weight of the parts via topological optimization (with applicability in the aerospace or automotive industry)  or to stimulate the osseo-conductivity of different types of implants made by 3D printing technologies (with applicability in the medical field) and the results reached by following different characterization procedures (e.g. mechanical testing, SEM, TEM, AFM, XRD, EDX analyses, etc.).

In terms of applicability of the methods, any application that is linked to an industrial product, medical application (implant, bone reconstruction, etc.) or biomedical printing (skin, tissue, vessels, muscles, organs, etc.) is more than welcomed to be included in this Special Issue.

The main topics to be included in this Special Issue are scientific contributions related to the following research topics:

  • New types of materials suitable for 3D printing technologies;
  • Design of new structures and topological optimization;
  • Modeling and simulation of processes or new developed products;
  • Additive manufacturing, 3D printing, and bioprinting methods;
  • Rapid Tooling methods;
  • Hybrid Manufacturing technologies;
  • Mechanical testing of parts made using 3D printing technologies;
  • Material characterization methods for new developed materials.

It is our pleasure to invite researchers, scientists, surgeons, and professionals from the industry or academic institutions and research centers from around the world to submit their contributions to this Special Issue.

Dr. Razvan Ioan Pacurar
Dr. Filip Górski
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • additive manufacturing
  • 3D printing, bio-printing
  • rapid tooling
  • hybrid manufacturing
  • lattice structures
  • topological optimization
  • bionic design
  • computer aided design
  • finite element analysis
  • smart materials, medical implants
  • bone structures
  • osseo-conductivity
  • bio-activity
  • mechanical testing
  • material characterization

Published Papers (2 papers)

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Research

14 pages, 2931 KiB  
Article
Extra-Articular Distal Humerus Plate 3D Model Creation by Using the Method of Anatomical Features
by Nikola Vitković, Jelena R. Stojković, Nikola Korunović, Emil Teuţan, Alin Pleşa, Alexandru Ianoşi-Andreeva-Dimitrova, Filip Górski and Răzvan Păcurar
Materials 2023, 16(15), 5409; https://doi.org/10.3390/ma16155409 - 02 Aug 2023
Viewed by 777
Abstract
Proper fixation techniques are crucial in orthopedic surgery for the treatment of various medical conditions. Fractures of the distal humerus can occur due to either high-energy trauma with skin rupture or low-energy trauma in osteoporotic bone. The recommended surgical approach for treating these [...] Read more.
Proper fixation techniques are crucial in orthopedic surgery for the treatment of various medical conditions. Fractures of the distal humerus can occur due to either high-energy trauma with skin rupture or low-energy trauma in osteoporotic bone. The recommended surgical approach for treating these extra-articular distal humerus fractures involves performing an open reduction and internal fixation procedure using plate implants. This surgical intervention plays a crucial role in enhancing patient recovery and minimizing soft tissue complications. Dynamic Compression Plates (DCPs) and Locking Compression Plates (LCPs) are commonly used for bone fixation, with LCP extra-articular distal humerus plates being the preferred choice for extra-articular fractures. These fixation systems have anatomically shaped designs that provide angular stability to the bone. However, depending on the shape and position of the bone fracture, additional plate bending may be required during surgery. This can pose challenges such as increased surgery time and the risk of incorrect plate shaping. To enhance the accuracy of plate placement, the study introduces the Method of Anatomical Features (MAF) in conjunction with the Characteristic Product Features methodology (CPF). The utilization of the MAF enables the development of a parametric model for the contact surface between the plate and the humerus. This model is created using specialized Referential Geometrical Entities (RGEs), Constitutive Geometrical Entities (CGEs), and Regions of Interest (ROI) that are specific to the human humerus bone. By utilizing this anatomically tailored contact surface model, the standard plate model can be customized (bent) to precisely conform to the distinct shape of the patient’s humerus bone during the pre-operative planning phase. Alternatively, the newly designed model can be fabricated using a specific manufacturing technology. This approach aims to improve geometrical accuracy of plate fixation, thus optimizing surgical outcomes and patient recovery. Full article
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19 pages, 5318 KiB  
Article
An Experimental Study on the Impact of Layer Height and Annealing Parameters on the Tensile Strength and Dimensional Accuracy of FDM 3D Printed Parts
by Jelena R. Stojković, Rajko Turudija, Nikola Vitković, Filip Górski, Ancuţa Păcurar, Alin Pleşa, Alexandru Ianoşi-Andreeva-Dimitrova and Răzvan Păcurar
Materials 2023, 16(13), 4574; https://doi.org/10.3390/ma16134574 - 25 Jun 2023
Cited by 8 | Viewed by 1763
Abstract
This study investigates the impact of annealing time, temperature, and layer height on the tensile strength and dimensional change of three 3D printing materials (PLA, PETG, and carbon fiber-reinforced PETG). Samples with varying layer heights (0.1 mm, 0.2 mm, and 0.3 mm) were [...] Read more.
This study investigates the impact of annealing time, temperature, and layer height on the tensile strength and dimensional change of three 3D printing materials (PLA, PETG, and carbon fiber-reinforced PETG). Samples with varying layer heights (0.1 mm, 0.2 mm, and 0.3 mm) were annealed at temperatures ranging from 60–100 °C for 30, 60, and 90 min. Tensile tests were conducted, and regression models were developed to analyze the effects of these parameters on tensile strength. The models exhibited high accuracy, with a maximum deviation of only 5% from measured validation values. The models showed that layer height has a significantly bigger influence on tensile strength than annealing time and temperature. Optimal combinations of parameters were identified for each material, with PLA performing best at 0.1 mm/60 min/90 °C and PETG and PETGCF achieving optimal tensile strength at 0.1 mm/90 min/60 °C. PETGCF demonstrated smallest dimensional change after annealing and had the best modulus of elasticity of all the materials. The study employed experimental testing and regression models to assess the results across multiple materials under consistent conditions, contributing valuable insights to the ongoing discussion on the influence of annealing in 3D-printed parts. Full article
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