Flexural mechanical properties of Ti-6Al-4V multilayer micro-lattice biomaterials for skull repair

Article Multidisciplinary Sciences

Multiscale engineered artificial tooth enamel

Hewei Zhao et al.

Summary: Accurate replication and scalable production of high-performance biomaterials are challenging, but a newly engineered enamel analog with hierarchical structure at multiple scales shows promising results.

SCIENCE (2022)

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Article Engineering, Biomedical

Additively manufactured metallic biomaterials

Elham Davoodi et al.

Summary: Metal additive manufacturing has revolutionized the design and fabrication of hard tissue substitutes, allowing for personalized implants and improved tissue integration. This review highlights the latest advances in the design and manufacturing of metallic biomaterials through additive manufacturing processes, as well as the potential applications for tissue regeneration.

BIOACTIVE MATERIALS (2022)

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Article Mechanics

Multi-scale and multi-material topology optimization of gradient lattice structures using surrogate models

M. R. Costa et al.

Summary: This study presents a computationally efficient topology optimization approach for lattice structures, while increasing design flexibility. The proposed two-scale concurrent optimization method achieves optimal topologies by simultaneously optimizing the macro-scale structure and the underlying material micro-structures. Surrogate models and an energy-based homogenization method combined with voxelization are used to represent material and geometrical properties. The optimized graded lattice structure outperforms the uniform lattice structure in terms of performance.

COMPOSITE STRUCTURES (2022)

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Article Mechanics

Three-point bending behaviors of the foam-filled CFRP X-core sandwich panel: Experimental investigation and analytical modelling

Jie Mei et al.

Summary: In order to enhance the energy absorption capacity, foam filled composite X-core sandwich panels were fabricated and their bending behaviors were investigated. Analytical and finite element models were developed to predict the performance of the sandwich structures, with higher accuracy achieved by the numerical models.

COMPOSITE STRUCTURES (2022)

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Article Engineering, Multidisciplinary

Flexural property evaluation of web reinforced GFRP-PET foam sandwich panel: Experimental study and numerical simulation

Honglei Xie et al.

Summary: This study focused on the flexural property of PET foam-filled lattice composite sandwich panels under four-point bending. Increasing the thickness of face sheet and PET foam can effectively improve the ultimate load of the panels. Experimental results and theoretical predictions showed errors within 10% for bending stiffness and ultimate load.

COMPOSITES PART B-ENGINEERING (2022)

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Article Engineering, Mechanical

Flexural properties of functionally graded additively manufactured AlSi10Mg TPMS latticed-beams

Chukwugozie J. Ejeh et al.

Summary: This study investigates the enhancement of flexural properties of lightweight beams through lattice functional grading and hybridization. Experimental results show that functional grading and hybridization significantly improve the specific flexural modulus of sheet-based TPMS latticed-beams, aiding in deflecting crack growth and slowing down final failure.

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES (2022)

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Review Materials Science, Multidisciplinary

Additive manufacturing of biomaterials for bone tissue engineering - A critical review of the state of the art and new concepts

Marie-Michele Germaini et al.

Summary: Additive manufacturing, particularly in the field of bone regeneration, has gained significant interest in the medical field. Various 3D printing techniques have been used to print medical devices and assist in surgical planning. This review compares different materials and additive manufacturing processes, highlighting their advantages and drawbacks in relation to clinical applications and the expectations of patients and clinicians.

PROGRESS IN MATERIALS SCIENCE (2022)

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Article Engineering, Civil

Ballistic impact responses and failure mechanism of composite double-arrow auxetic structure

Wanchun Yang et al.

Summary: A novel composite double-arrow auxetic structure was designed and fabricated, and its anti-penetration performance was studied using experimental and numerical simulation methods. The results of the experiments were consistent with the simulation results, validating the effectiveness of the auxetic structure.

THIN-WALLED STRUCTURES (2022)

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Article Engineering, Multidisciplinary

Trabecular-like Ti-6Al-4V scaffold for bone repair: A diversified mechanical stimulation environment for bone regeneration

Huixin Liang et al.

Summary: A bionic scaffold with ideal osteoconductive and osteoinductive characteristics was designed and tested. The results showed that the irregular structure of the trabecular-like scaffold improved its fatigue performance and osteogenic ability compared to the regular scaffold.

COMPOSITES PART B-ENGINEERING (2022)

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Article Materials Science, Multidisciplinary

Quasi-static compressive mechanical properties of multilayer micro-lattice biomaterials for skull repair

Yang Zhao et al.

Summary: This study proposes a multilayer micro-lattice biomaterials (MB) that combines suitable mechanical properties and biocompatibility to address the problems of current skull repair biomaterials. The quasi-static compressive mechanical properties of MB are studied experimentally, numerically, and theoretically, and the typical deformations of MB are observed. Furthermore, the MB with hybrid gradient design is found to better match the structural characteristics of the skull.

MATERIALS & DESIGN (2022)

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Article Mechanics

Design, mechanical properties, and optimization of BCC lattice structures with taper struts

Miao Zhao et al.

Summary: A novel parametric approach was proposed to improve the mechanical properties of lattice structures. The performance and deformation behavior of lattice structures with different taper struts were investigated through finite element analysis and experimental tests. The results show that tapered struts can reduce stress concentration and increase the elastic modulus of the structure.

COMPOSITE STRUCTURES (2022)

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Article Mechanics

Tunable mechanical performance of additively manufactured plate lattice metamaterials with half-open-cell topology

Xiaobo Wang et al.

Summary: In this study, plate lattice metamaterials with half-open-cell topology were proposed and fabricated using laser powder bed fusion technique. The mechanical properties and elastic anisotropy of these metamaterials were found to be easily tunable by changing the geometric parameters. The specific energy absorption of the half-open-cell plate lattice metamaterials was also significantly higher than that of truss lattice metamaterials. The porous architecture, lightweight body, and superior mechanical performance make these metamaterials promising for applications in load-bearing, energy absorption, and biomedical engineering.

COMPOSITE STRUCTURES (2022)

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Article Materials Science, Multidisciplinary

Novel micro-lattice biomaterials for human skull repair with matching skull density and compression stiffness & strength

Yang Zhao et al.

Summary: Developing alternative biomaterials for human skull is crucial for clinical applications. A novel method utilizing micro-lattice for skull repair has been proposed and implemented using specific material. The results show that the alternative biomaterial matches the performance of the actual skull and has broad clinical application prospects.

MATERIALS LETTERS (2022)

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Review Materials Science, Multidisciplinary

Additive manufacturing of metallic and polymeric load-bearing biomaterials using laser powder b e d fusion: A review

Alireza Nouri et al.

Summary: Additive manufacturing (AM) technology, particularly laser powder bed fusion (L-PBF), has emerged as a promising method for producing load-bearing metallic and polymeric implants. L-PBF allows for the fabrication of complex and customized implants with high levels of accuracy and precision, making it ideal for orthopedic, traumatological, craniofacial, maxillofacial, and dental applications. The design freedom of AM technology, including altering topology and controlling macro-porosity, opens up new possibilities for the fabrication of biomaterial scaffolds.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2021)

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Review Pharmacology & Pharmacy

Pharmaceutical electrospinning and 3D printing scaffold design for bone regeneration

Zhen Wang et al.

Summary: Bone regenerative engineering encompasses scaffold design and applications based on electrospinning and 3D bioprinting technologies, aiming to achieve bone tissue regeneration. Electrospun nanofibrous scaffolds and 3D bioprinted scaffolds play crucial roles in bone regeneration, with promising prospects for future development.

ADVANCED DRUG DELIVERY REVIEWS (2021)

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Article Materials Science, Multidisciplinary

Additive-manufactured hierarchical multi-circular lattice structures for energy absorption application

Peng Wang et al.

Summary: This work presents a new lattice design that exhibits better energy absorption capacity compared to traditional lattices, with experimental evidence supporting its enhanced performance. Parametric studies show that the specific energy absorption and crushing force efficiency can be simultaneously improved with the proper number of higher-level circular beams.

MATERIALS & DESIGN (2021)

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Article Materials Science, Multidisciplinary

An efficient design methodology for graded surface-based lattice structures using free-size optimization and enhanced mapping method

Ugur Simsek et al.

Summary: This paper introduces a novel Free-size Optimization based Graded Lattice Generation method for generating functionally graded lattice structures and presents a reconstruction method suitable for Additive Manufacturing of 3D FGL structures. The effectiveness of the proposed algorithm is validated through laser vibrometer measurements, showing a reduction in overall acceleration spectrum compared to existing optimization algorithms. The study highlights the efficiency and validity of the FOGLG method for FGL generation.

MATERIALS & DESIGN (2021)

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Article Engineering, Biomedical