Review
Engineering, Aerospace
Solomon O. Obadimu, Kyriakos Kourousis
Summary: Additive Manufacturing (AM) technology has evolved from fabricating test products and prototypes to end-user products due to continuous research and development. AM offers the opportunity to fabricate complex structures like lattice structures, which have superior mechanical properties and performance. This paper reviews mechanical properties and performance of metallic and non-metallic lattice structures, focusing on compression behavior and optimization techniques.
Article
Automation & Control Systems
Alessandra Pirinu, Teresa Primo, Antonio Del Prete, Francesco Willem Panella, Fabio De Pascalis
Summary: Additive Manufacturing (AM), specifically Selective Laser Melting (SLM), allows for the production of complex metal lattice structures with desired properties and reduced weight. This study investigates how cell topology, size, and beam diameter affect deformation and failure behavior of SLM-manufactured AlSi10Mg alloy structures under static compressive loading. Design of experiment (DOE) analysis is used to define the geometrical features and dimensions of the lattice structures. The experiment includes sixteen topological combinations and forty-eight lattice specimens, each with three replicas, to minimize manufacturing variations.
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2023)
Article
Construction & Building Technology
Goncalo Duarte, Nathan Brown, Ali Memari, Jose Pinto Duarte
Summary: This paper reviews and learns from historic buildings that rely on compression to resist gravity loads, in order to guide the construction of affordable housing and shelters using 3D printed concrete. By analyzing the form, structural principle, materials, and construction process of historic structures, the authors identify shapes suitable for 3D printing of concrete and propose strategies for addressing printability issues. The paper also provides insights into existing construction scale printing processes and material considerations to ensure successful printing of the identified forms.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Materials Science, Ceramics
Xueqin Zhang, Keqiang Zhang, Bin Zhang, Ying Li, Rujie He
Summary: In this study, ceramic lattice structures (CLSs) were designed and additively manufactured to investigate their quasi-static and dynamic compressive behaviors. It was found that the relative density and inclination angle significantly influenced the mechanical properties of the CLSs. Mathematical relationships were established between the quasi-static compressive properties and the structural parameters, and these relationships were consistent with established models. The study also revealed a change in the failure mode of the CLSs with increasing stiffness, and demonstrated their suitability for extreme environments.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Construction & Building Technology
A. Aramburu, I. Calderon-Uriszar-Aldaca, I. Puente
Summary: This paper studies the mechanical behavior of annular 3D-printed cylindrical specimens and compares it with the expected theoretical behavior of cast-moulded geometries. Two key procedures, geometric characterization and formulation for defining effective section, are proposed based on the test results and verified reasons for the discrepancy between theoretical estimation and experimental results in structural calculations.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Wenjun Wu, Pai Liu, Yiqiang Wang, Zhan Kang
Summary: This paper introduces a new design of bistable structures that achieve torsional bistability under uniaxial compression. The proposed structure is composed of two co-axis polygonal prisms connected by struts, and torsional bistability is achieved by opposite rotations of the prisms. An analytical model and numerical simulations demonstrate the need for a dual-material design for the inclined and connecting struts to induce bistability.
MATERIALS & DESIGN
(2023)
Article
Engineering, Manufacturing
Saurav Verma, Cheng-Kang Yang, Chao-Hsun Lin, Jeng Ywam Jeng
Summary: This study utilized 3D printing technology to fabricate lattice structures on a metal substrate for mechanical interlocking in lightweight manufacturing. The strength of the lattice-resin interlock was predicted using finite element analysis and compared with experimental results.
ADDITIVE MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Jianxing Yang, Xiaohong Chen, Yuanxi Sun, Junfang Zhang, Chen Feng, Yanmiao Wang, Ke Wang, Long Bai
Summary: Functionally graded lattice structures have gained attention for their potential in customizing structural responses and developing multi-functional applications. This study proposes a bidirectionally graded lattice structure and demonstrates its superior mechanical performance through experiments.
MATERIALS & DESIGN
(2022)
Article
Engineering, Manufacturing
Ross Johnston, Zafer Kazanci
Summary: This study compares the effects of different material combinations on the performance of cellular structures, finding that single-material structures perform best in single loading cycle situations, while multi-material structures are suitable for situations requiring multiple loading cycles. Introducing materials with varying stiffnesses into specific regions within the structure can modify the Poisson's ratio during compression, improving overall performance.
ADDITIVE MANUFACTURING
(2021)
Article
Engineering, Manufacturing
Cherq Chua, Swee Leong Sing, C. K. Chua
Summary: This study uses finite element analysis to investigate the mechanical performance of in-situ alloyed titanium-tantalum lattice structures fabricated using laser powder bed fusion. The study finds that both simulation methods accurately predict the elastic modulus, but underestimate the yield strength. Additionally, the study shows that the performance of uniform lattice structures agrees with the Gibson-Ashby model, and suggests that more information on defect conditions is needed to improve simulation accuracy.
VIRTUAL AND PHYSICAL PROTOTYPING
(2023)
Article
Materials Science, Multidisciplinary
Enrico Ossola, Andrew A. Shapiro, Andre Pate, Samad Firdosy, Eugenio Brusa, Raffaella Sesana
Summary: Additive manufacturing has enabled the production of lattice structures with tailored mechanical properties, but process limitations still affect the quality of struts. AlSi10Mg specimens fabricated using laser powder bed fusion were used to study the impact of strut orientation, size, and overhang length on structures.
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS
(2021)
Article
Mechanics
Meiling Fan, Tao Zeng, Rina Wu, Yuhua Cui, Guodong Xu, Xiaohong Wang, Su Cheng, Jue Zhao
Summary: This study proposes a novel sandwich structure with graded lattice core, achieving gradient design using tailored porosity. An analytical model is developed to determine the compression response of the graded lattice core in the sandwich structures. Two types of graded lattice sandwich structures are fabricated and compression tests are conducted to validate the analytical model. The results show good agreement between the analytical predictions and experimental outcomes. It is found that the effective Young's modulus is independent of porosity distribution pattern but dependent on porosity parameter and power law index. Moreover, increasing porosity parameter leads to decreased yield stress and critical buckling stress. The structure with SCI porosity distribution pattern exhibits superior load-bearing capabilities, indicating that desirable mechanical properties can be achieved through controlled structural porosity.
COMPOSITE STRUCTURES
(2023)
Article
Chemistry, Physical
Dorota Laskowska, Tomasz Szatkiewicz, Blazej Balasz, Katarzyna Mitura
Summary: This study investigated the compressive behavior, overall deformation mode, mechanical properties, and energy absorption ability of Diamond TPMS cylindrical structures. The results showed that the structural parameters had an impact on the mechanical properties and the energy absorption ability. The bending-dominated Diamond TPMS cylindrical structures exhibited advantage in energy absorption, but had lower elastic modulus and yield strength.
Article
Engineering, Industrial
Jingxiang Lv, Tao Peng, Yingfeng Zhang, Yuchang Wang
Summary: This article presents a novel method to forecast the energy consumption of SLM processes by utilizing power modeling of machine subsystems and temporal modeling of sub-processes, resulting in significantly improved forecast accuracy.
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
(2021)
Article
Thermodynamics
Dong Liang, Guanlin He, Wei Chen, Yaoqi Chen, Minking K. Chyu
Summary: Selective Laser Melting (SLM) fabricated micro-lattices showed acceptable dimensional accuracy but relatively rough surface. Among the structures, X-type lattice exhibited the best heat transfer enhancement, while pin fin had advantages in reducing pressure drop. Numerical simulation suggested that the heat transfer enhancement was closely related to the scale of vortex generated in the flow field.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Automation & Control Systems
L. Esposito, A. Bertocco, G. Cricri, V. Rosiello
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
(2019)
Article
Engineering, Multidisciplinary
L. Esposito, M. Bruno, A. Bertocco
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2020)
Article
Physics, Multidisciplinary
Aurelio Liguori, Enrico Armentani, Alcide Bertocco, Andrea Formato, Arcangelo Pellegrino, Francesco Villecco
Article
Chemistry, Physical
Alcide Bertocco, Matteo Bruno, Enrico Armentani, Luca Esposito, Michele Perrella
Summary: This study experimentally investigates and analytically models the stress relaxation behavior of 3D printed PLA. It explores the effects of printing parameters such as infill orientation and outer wall presence, as well as the impact of thermal conditioning treatments on material properties.
Proceedings Paper
Engineering, Mechanical
A. Bertocco, L. Esposito, A. Aurino, D. Borrelli, A. Caraviello
Summary: This study investigated the compression behavior of lattice structures in stainless steel printed by SLM with different parameters settings. The research compared the compressive response of structures printed with different parameters and discussed their behavior considerations.
49TH ITALIAN ASSOCIATION FOR STRESS ANALYSIS CONFERENCE (AIAS 2020)
(2021)
Proceedings Paper
Engineering, Mechanical
M. Bruno, A. Bertocco, M. Perrella, L. Esposito
Summary: This paper focuses on the curling process of metallic caps used in the food industry, aiming to develop a model for predicting curling loads for different cap shapes and sizes. Experimental compression tests on two different cap types were compared with analytical solutions and numerical simulations, providing insights into the influence of caps geometry and size on curling force.
49TH ITALIAN ASSOCIATION FOR STRESS ANALYSIS CONFERENCE (AIAS 2020)
(2021)
Proceedings Paper
Engineering, Manufacturing
Luca Esposito, Gabriel Testa, Alcide Bertocco, Nicola Bonora
PROCEEDINGS OF THE ASME PRESSURE VESSELS AND PIPING CONFERENCE, 2018, VOL 6A
(2019)
Proceedings Paper
Engineering, Mechanical
Luca Esposito, Alcide Bertocco, Raffaele Sepe, Enrico Armentani
AIAS 2018 INTERNATIONAL CONFERENCE ON STRESS ANALYSIS
(2018)
