在最近的幾十年中，設計的發展在各個領域都在增長。在諸如高承載，減少材料消耗，時間等特性方面看到了主要的提升。當前的紙張具有相同的改進，但是還具有一些附加特性，例如對材料的彈力鬆散性。帶有圓盤的設計具有較少的彈性和塑性。對聚乳酸等彈性材料進行熔融沈積研究，作為材料執行方法，得到了相關的結果。設計中實現了開放式圓盤晶格結構的應用。由於研究使用圓盤作為設計中的晶格結構。通常，大多數設計使用不同的結構，例如球體和一些圖案。圓盤在設計上的提升使承重和一些特性有所不同。光盤等變量的提昇在當前研究中得到了解釋。
當前的研究有4種不同的類型對應於光盤大小的變化。這項研究的實驗工作在填充方面有所不同，具體取決於增材製造（AM）工藝。 AM上的每個模型都有不同的填充物，例如20％，50％，80％和100％用於研究。通過實驗和元素分析解釋了壓縮性能。光盤的結構行為在壓縮狀態下進行了說明。在製造結構中應用承重時，開孔無支撐格子結構的可能應用。

In the recent decades the developments of designs are increasing in various fields. The major promotions seen in properties such as high load bearing, lesser material consumption, time etc. The current paper has the same improvements but also some additional properties such as elasto-palsticity to the material. There are less designs with disc to have of elastic and plastic properties in it. The study is done with elastic materials such as PLA in fused deposition for material executing method to get the concerning result. The application of open disc cell lattice structure is implemented in the design. As the study uses the Discs as the lattice structure in the design. Generally most of the designs uses different structures like spheres and some patters. The promotion of disc in the design makes the load bearing and a few properties different. The promotions of the variable like disc is explained in the current study.
The current study has 4 different types correspond to the change in disc sizes. The experimental work on the study has the difference in infill dependent on additive manufacturing (AM) process. Each model on AM has different infills like 20%, 50%, 80% and 100% are taken for the study. Where the compression properties are explained via experimentally and elemental analysis. The structural behavior of disc are explained on compression state. Possible application for open cell support less lattice structure on application of load bearing in fabricated structure.

Abstract ................................................................................................................ i
摘要 ..................................................................................................................... iii
Acknowledgement ............................................................................................. iv
Table of Contents ............................................................................................... v
List of Tables ..................................................................................................... vi
List of Figures .................................................................................................. vii
Chapter 1 Introduction ................................................................................... 1
1.1 Research Purpose.................................................................................... 3
1.2 Research method ..................................................................................... 5
1.3 Objectives ................................................................................................ 6
1.4 Literature review .................................................................................... 6
Chapter 2 Theoretical Study, Software Introduction and Equipment Introduction .................................................................................. 10
2.1 Theoretical study .................................................................................. 10
2.2 Software Introduction .......................................................................... 15
2.3 Equipment Introduction ...................................................................... 17
Chapter 3 Finite Element Analysis .............................................................. 21
3.1 simulation process of the model .......................................................... 21
3.2 FE deformation study on load ............................................................. 31
Chapter 4 experimental study ...................................................................... 35
4.1 Total body’s for experimental study ................................................... 35
4.2 Experimental process study ................................................................. 36
4.3 limitations on experimental study ....................................................... 39
Chapter 5 Results and Discussion ................................................................ 41
5.1 Results .................................................................................................... 41
5.2 Discussion .............................................................................................. 46
Chapter 6 Conclusion .................................................................................... 48
References ....................................................................................................... 50

[1] A. Nazir, K.M. Abate, A. Kumar, J.Y. Jeng, A state-of-the-art review on types, design, optimization, and additive manufacturing of cellular structures, Int. J. Adv. Manuf. Technol. 104 (2019) 3489–3510. [2] M.M.J. Opgenoord, K.E. Willcox, Design for additive manufacturing: cellular structures in early-stage aerospace design, Struct. Multidiscipl. Optim. 60 (2019) 411–428.
[3] Ajeet Kumar, Luca Collini, Jeng-Wuywan Jeng, Design and Additive Manufacturing of closed cells from supportless lattice strucure, Elsevier, Additive Manufacturing 33 (2020) 101168, https://www.sciencedirect.com/science/article/pii/S2214860420305406
[4] C. Beyer, D. Figueroa, Design and analysis of lattice structures for additive manufacturing, J. Manuf. Sci. Eng. 138 (2016) 121014. [5] W. Tao, M.C. Leu, Design of lattice structure for additive manufacturing, Int, Missouri University of Science and Technology, 2016 International Symposium on Flexible Automation. Symp. Flex. Autom. (2016) (2016) 1–3.
[6] A. Kumar, S. Verma, J. Jeng, Supportless lattice structures for energy absorption fabricated by fused deposition modeling, 3D Print. Addit. Manuf, Mary Ann Libert, Inc. (2020). [7] Erica Liverani, Adrian H.A. Lutey, Alessandro Fortunato, Characterization of Lattice Structures for Additive Manufacturing of Lightweight Mechanical Components, JSME/ASME 2017 , MSEC2017-2835 June 4-8, 2017, Los Angeles, USA.
[8] L.J. Gibson, M.F. Ashby, Cellular Solids: Structure and Properties, Oxford: Pergamon Press, ISBN: 0‐08‐036607‐4, 357 , Cambridge University Press, 1999.
[9] Introduction on additive manufacturing -https://www.ge.com/additive/additive-manufacturing
[10] Von Mises Material Properties - https://download.autodesk.com/us/algor/userguides/mergedProjects/setting_up_the_analysis/Nonlinear/Materials/von_Mises_Material_Properties.htm
[11] Elasto-plasticity - http://environment.uwe.ac.uk/geocal/SoilMech/basic/stiffness.htm [12] Erica Liverani, Alessandro Fortunato, Adrian H. A. Lutey, Characterization of Lattice Structures for Additive Manufacturing of Lightweight Mechanical Components, ASME 2017 12th International Manufacturing Science and Engineering Conference collocated, June 4-8, 2017, Los Angeles, USA.
[13] Peng Wang, Yijie Bian, Fan Yang, Mechanical properties and energy absorption of FCC lattice structures with different orientation angles, Springer link, Acta Mechanica volume 231, pages3129–3144(2020). [14] Porto Alegre, Rio Grande do Sul, RS, Brasil, Effect of infill pattern in Fused Filament Fabrication (FFF) 3D Printing on materials performance, Laboratório de Materiais Poliméricos - LAPOL - PPGE3M/EE/UFRGS CP: 15010, CEP: 90650-001, Matéria (Rio J.) vol.25 no.3 Rio de Janeiro 2020. [15] KHAN, S. A., SIDDIQUI, B. A., FAHAD, M., KHAN, M. A. “Evaluation of the Effect of Infill Pattern on Mechanical Stregnth of Additively Manufactured Specimen,” Mater. Sci. Forum, v. 887, n. March, pp. 128-132, 2017. [16] J Brenan, D Brackett, R Wildman, R Haugue, the designs of impact absorbing structures additive manufacture, Journal of Physics Conference Series 382(1), Conference Series 382 (2012) 012042. [17] k.li, X.L. Gao, G. Subash, Effects of cell shape and strut cross-sectional area variations on the elastic properties of three-dimensional open-cell foams, Journal of the Mechanics and Physics of SolidsVolume 54, Issue 4, April 2006, Pages 783-806.
[18] Ansys on additive manufacturing concepts https://www.ansys.com/products/structures/additive-manufacturing
[19] Liang Hao, David Raymont, Chunze Yan, design and additive manufacturing of cellular lattice structures, innovative developments in virtual and physical prototyping – Bartolo.et al @2012 Taylor, Francis group London, ISBN 978-0-415-68418-7.
[20] Chen Chu, Greg Graf &David W. Rosen, Design for Additive Manufacturing of Cellular Structures, computer-aided design and applications book, Pages 686-696.