Design of New Energy-Absorbing Lattice Cell Configuration by Dynamic Topology Optimization DOI Creative Commons
Yongxin Li, Qinghua Li, Xingxing He

et al.

Metals, Journal Year: 2024, Volume and Issue: 14(12), P. 1348 - 1348

Published: Nov. 27, 2024

In this study, we focus on the new energy-absorbing lattice cell configuration designed by topology optimization. To address difficulty involved in quantitative description of densification periodic plastic deformation, propose characterizing state a porous structure with maximum ratio two adjacent equivalent moduli nonlinear static analysis process. Then, dynamic optimization is carried out maximization absorbed energy as objective and strain constraint to obtain topological cell. Finally, additive manufacturing quasistatic testing body-centered cubic face-centered conducted. The results show that, under same conditions, approximately 3.5 times that 2.8 low impact speed 5 m/s.

Language: Английский

Computational Modelling and Simulation of Scaffolds for Bone Tissue Engineering DOI Creative Commons
Haja-Sherief N Musthafa, Jason Walker, Mariusz Domagała

et al.

Computation, Journal Year: 2024, Volume and Issue: 12(4), P. 74 - 74

Published: April 4, 2024

Three-dimensional porous scaffolds are substitutes for traditional bone grafts in tissue engineering (BTE) applications to restore and treat injuries defects. The use of computational modelling is gaining momentum predict the parameters involved healing cell seeding procedures perfusion bioreactors reach final goal optimal growth. Computational based on finite element method (FEM) fluid dynamics (CFD) two standard methodologies utilised investigate equivalent mechanical properties scaffolds, as well flow characteristics inside respectively. success a simulation hinges selection relevant mathematical model with proper initial boundary conditions. This review paper aims provide insights researchers regarding appropriate (FE) models different materials CFD regimes bioreactors. Thus, these FEM/CFD may help create efficient designs by predicting their structural haemodynamic responses prior vitro vivo (TE) applications.

Language: Английский

Citations

5
Effective Design of Three New Layered Gradient Lattice Structures and Their Crashworthiness DOI Open Access

Qingheng Tang,

Qinghai Zhao, Chao Zhang

et al.

Advanced Engineering Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Gradient lattice structures are gaining increased attention due to better meeting the crashworthiness requirements of lightweight structures. This study explores how cell number, configuration, and diameter ratio affect mechanical properties energy absorption. Three new types gradient designed. Initially, properties, deformation behaviors, absorption capabilities analyzed through finite element simulations. Subsequently, fabricated using 316L laser powder bed fusion technology, quasistatic compression tests conducted a materials testing machine validate effectiveness simulation results. The results show that inner outer structure strategy has greatest influence on capacity structure. Among all structures, BSF (cell number structure‐F) is optimal structure, whose maximum impact force total 88.8 107.9% higher than those conventional uniform JYC (uniform structure‐C), respectively. three strategies proposed in this provide insights into design optimization impact‐resistant which can be used as potential for future applications.

Language: Английский

Citations

0
Compressive Properties of Composite Sandwich Structure with Fractal Tree-Inspired Lattice Core DOI Open Access
Jian Han,

Xin Ma,

Rui Yang

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(3), P. 606 - 606

Published: Jan. 29, 2025

A novel sandwich structure of a fractal tree-like lattice (SSFL) is proposed. The geometry characteristics were constructed based on the patterns found in many biological structures, such as giant water lilies and dragon blood trees. compressive performance proposed structures with different orders was experimentally numerically investigated. experimental samples made by 3D printing technology. Axial compression tests conducted to study failure mode SSFLs. results indicated that new good at multiple bearing energy absorption. finite element method (FEM) performed investigate influence parameters behaviors findings this provide an effective guide for using design high capacity.

Language: Английский

Citations

0
Overcoming Dynamic Stiffness-Damping Trade-Off with Structural Gradients in 3D Printed Elastomeric Gyroid Lattices DOI
Jizhe Cai, Kyle C. H. Chin, Abhay Gupta

et al.

Experimental Mechanics, Journal Year: 2025, Volume and Issue: unknown

Published: March 14, 2025

Language: Английский

Citations

0
Design of New Energy-Absorbing Lattice Cell Configuration by Dynamic Topology Optimization DOI Creative Commons
Yongxin Li, Qinghua Li, Xingxing He

et al.

Metals, Journal Year: 2024, Volume and Issue: 14(12), P. 1348 - 1348

Published: Nov. 27, 2024

In this study, we focus on the new energy-absorbing lattice cell configuration designed by topology optimization. To address difficulty involved in quantitative description of densification periodic plastic deformation, propose characterizing state a porous structure with maximum ratio two adjacent equivalent moduli nonlinear static analysis process. Then, dynamic optimization is carried out maximization absorbed energy as objective and strain constraint to obtain topological cell. Finally, additive manufacturing quasistatic testing body-centered cubic face-centered conducted. The results show that, under same conditions, approximately 3.5 times that 2.8 low impact speed 5 m/s.

Language: Английский

Citations

0