New paradigms in cellular material design and fabrication

Yoo, Dong-Jin

doi:10.1007/s12541-015-0330-8

Cited by 35 publications

(9 citation statements)

References 60 publications

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“…However, SF method cannot handle intricate and compound transition boundaries; this challenge is overcome by applying the Gaussian radial basis function, the volumetric distance field, or the beta growth function. The readers are encouraged to refer to Yeng et al [ 111 ] and Yoo and Kim [ 112 ] for the detailed mathematical application of these methods.…”

Section: Design and Performance Optimizationmentioning

confidence: 99%

Recent Advancements in Design Optimization of Lattice‐Structured Materials

et al. 2023

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Metamaterials, also known as lattice‐structured materials, imitate the multifunctionality of natural architects as tailoring their physical properties is associated with manipulating their microstructure. As the recent evolution of additive manufacturing enables the creation of intricate geometries with minimal material wastage, improving the design to manufacturing cycle of lattice structured materials has become one of the trending research areas. Triply periodic minimal surface (TPMS) and plate lattice materials are renowned for their exceptional mechanical behavior in lightweight applications. Apparently, several types of design optimization strategies are explored to maximize their performance for better biocompatibility and mechanical loading resistance. Some of these strategies include functional gradation and multimorphology hybridization that are comprehensively described in this review. Their benefits and drawbacks are highlighted with a focus on TPMS and plate lattice materials. The review anticipates the utilization of automated design exploration methods (i.e., topology optimization and data‐driven methods) to further enhance the design optimization procedure of lattice structured materials.

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Section: Design and Performance Optimizationmentioning

confidence: 99%

Recent Advancements in Design Optimization of Lattice‐Structured Materials

et al. 2023

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“…Methodologies, such as the image-based method [21,81], implicit function-based surface generation [82,83], space fitting curve [84], and CAD-based approach [85][86][87][88], are used to construct TPMS-based structures. In this work, implicit function-based surface generation was employed to generate P and G surfaces.…”

Section: Mathematical Description and Generation Of Tpms Unit Cellsmentioning

confidence: 99%

Design and Analysis of Biomedical Scaffolds Using TPMS-Based Porous Structures Inspired from Additive Manufacturing

et al. 2022

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Gyroid (G) and primitive (P) porous structures have multiple application areas, ranging from thermal to mechanical, and fall in the complex triply periodic minimal surface (TPMS) category. Such intricate bioinspired constructs are gaining attention because they meet both biological and mechanical requirements for osseous reconstruction. The study aimed to develop G and P structures with varying porosity levels from 40% to 80% by modulating the strut thickness to proportionally resemble the stiffness of host tissue. The performance characteristics were evaluated using Ti6Al4V and important relationships between feature dimension, strut thickness, porosity, and stiffness were established. Numerical results showed that the studied porous structures could decrease stiffness from 107 GPa (stiffness of Ti6Al4V) to the range between 4.21 GPa to 29.63 GPa of varying porosities, which matches the human bone stiffness range. Furthermore, using this foundation, a subject-specific scaffold (made of P unit cells with an 80% porosity) was developed to reconstruct segmental bone defect (SBD) of the human femur, demonstrating a significant decrease in the stress shielding effect. Stress transfer on the bone surrounded by a P scaffold was compared with a solid implant which showed a net increase of stress transfer of 76% with the use of P scaffold. In the conclusion, future concerns and recommendations are suggested.

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“…Several studies showed that sheet solid possess better mechanical properties than the network solids at the same volume fraction [95,102]. Design methodologies for modeling TPMS solids have been proposed in the literature [103,104,105], which mainly adopt volume representation (voxels or volumetric distance field) to describe the model. Last but not the least, with the help of multi-material technology, the field of metamaterials [6] has been extended from homogeneous to heterogeneous.…”

Section: Figure 5(a)mentioning

confidence: 99%

Challenges and Status on Design and Computation for Emerging Additive Manufacturing Technologies

Leung

Kwok

et al. 2019

Journal of Computing and Information Science in Engineering

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The revolution of additive manufacturing (AM) has led to many opportunities in fabricating complex and novel products. The increase of printable materials and the emergence of novel fabrication processes continuously expand the possibility of engineering systems in which product components are no longer limited to be single material, single scale, or single function. In fact, a paradigm shift is taking place in industry from geometry-centered usage to supporting functional demands. Consequently, engineers are expected to resolve a wide range of complex and difficult problems related to functional design. Although a higher degree of design freedom beyond geometry has been enabled by AM, there are only very few computational design approaches in this new AM-enabled domain to design objects with tailored properties and functions. The objectives of this review paper are to provide an overview of recent additive manufacturing developments and current computer-aided design methodologies that can be applied to multimaterial, multiscale, multiform, and multifunctional AM technologies. The difficulties encountered in the computational design approaches are summarized and the future development needs are emphasized. In the paper, some present applications and future trends related to additive manufacturing technologies are also discussed.

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New paradigms in cellular material design and fabrication

Cited by 35 publications

References 60 publications

Recent Advancements in Design Optimization of Lattice‐Structured Materials

Recent Advancements in Design Optimization of Lattice‐Structured Materials

Design and Analysis of Biomedical Scaffolds Using TPMS-Based Porous Structures Inspired from Additive Manufacturing

Challenges and Status on Design and Computation for Emerging Additive Manufacturing Technologies

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