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On the application of additive manufacturing methods for auxetic structures: a review

Advances in Manufacturing 2021年第3期9卷 342-368页

作者： Athul Joseph Vinyas Mahesh Dineshkumar Harursampath Nonlinear Multifunctional Composites Analysis and Design(NMCAD)Laboratory Department of Aerospace EngineeringIndian Institute of ScienceBangalore560012India Department of Mechanical Engineering National Institute of TechnologySilcharAssam788010India

Auxetic structures are a special class of structural components that exhibit a negative Poisson’s ratio(NPR)because of their constituent materials,internal microstructure,or structural *** realize such structures,specialized manufacturing processes are required to achieve a dimensional accuracy,reduction of material wastage,and a quicker ***,additive manufacturing(AM)techniques play a pivotal role in this *** is a layer-wise manufacturing process and builds the structure as per the designed geometry with appreciable precision and ***,it is extremely beneficial to fabricate auxetic structures using AM,which is otherwise a tedious and expensive *** this study,a detailed discussion of the various AM techniques used in the fabrication of auxetic structures is *** advancements and advantages put forward by the AM domain have offered a plethora of opportunities for the fabrication and development of unconventional ***,the authors have attempted to provide a meaningful encapsulation and a detailed discussion of the most recent of such advancements pertaining to auxetic *** article opens with a brief history of the growth of auxetic materials and later auxetic ***,discussions centering on the different AM techniques employed for the realization of auxetic structures are *** basic principle,advantages,and disadvantages of these processes are discussed to provide an in-depth understanding of the current level of ***,the performance of some of the prominent auxetic structures realized through these methods is discussed to compare their benefits and *** addition,the influences of geometric and process parameters on such structures are evaluated through a comprehensive review to assess their feasibility for the later-mentioned ***,valuable insights into the applications,limitations,and prospects of AM for auxetic structures

关键词： Auxetic Additive manufacturing(AM) Negative Poisson’s ratio(NPR) Mechanical performance unit-cell structure

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