Investigating the mechanical response of microscale pantographic structures fabricated by multiphoton lithography

Zacharias Vangelatos; M. Erden Yildizdag; Ivan Giorgio; Francesco dell'Isola; Costas Grigoropoulos

doi:10.1016/j.eml.2021.101202

Investigating the mechanical response of microscale pantographic structures fabricated by multiphoton lithography

Zacharias Vangelatos
, M. Erden Yildizdag
, Ivan Giorgio
, Francesco dell'Isola^*
, Costas Grigoropoulos

^*Bu çalışma için yazışmadan sorumlu yazar

Gemi İnş. ve Gemi Mak. Müh. Böl.

University of California at Berkeley
University of L'Aquila

Araştırma çıktısı: Dergi yayını › Makale › Hakem

27 Atıf (Scopus)

Özet

The design of micromechanical devices that can facilitate large but recoverable deformations requires a mechanical behavior that embosoms hyperelasticity. While multiphoton lithography is the epitome of microscale fabrication, the employed materials demonstrate a linear elastic response accompanied by limited ductility. In this study, we investigate how this hindrance can be circumvented through the design of microscale pantographic structures. Pantographs possess riveting hyperelastic response inherited by their structural design, providing exorbitant reversible deformations. To prove the utility of pantographs in microscale design, finite element analysis simulations are performed to unravel the behavior of the structure as a function of its geometrical parameters. In addition, to evaluate the microscale modeling, specimens are fabricated with multiphoton lithography in a push to pull up configuration to accomplish in situ SEM microindentation tensile testing due to compression. Our findings are adduced to expound how the pantographic structures can embrace hyperelastic response even at the microscale, elucidating their feasibility for structural members in micromechanical devices that require reversible large deformations.

Orijinal dil	İngilizce
Makale numarası	101202
Dergi	Extreme Mechanics Letters
Hacim	43
DOI'lar	https://doi.org/10.1016/j.eml.2021.101202
Yayın durumu	Yayınlandı - Şub 2021

Bibliyografik not

Publisher Copyright:
© 2021

Finansman

This research was partially supported by the National Science Foundation, USA (NSF) under the Scalable Nanomanufacturing (SNM) Program, Grand No. 1449305 . The authors thank Dr Vasilia Melissinaki and Dr Maria Farsari, FORTH Greece, for assisting in the fabrication of some of the employed specimens of the present study. The authors also thank Professor P. Hosemann, Department of Nuclear Engineering, University of California, Berkeley, for the availability of his indentation apparatus and Professor David J. Steigmann, Department of Mechanical Engineering, University of California, Berkeley for providing thoughtful feedback regarding the interpretation of the experimental results. The nanoindentation and SEM experiments were conducted at the California Institute of Quantitative Bioscience (QB3 Lab). This research was partially supported by the National Science Foundation, USA (NSF) under the Scalable Nanomanufacturing (SNM) Program, Grand No. 1449305. The authors thank Dr Vasilia Melissinaki and Dr Maria Farsari, FORTH Greece, for assisting in the fabrication of some of the employed specimens of the present study. The authors also thank Professor P. Hosemann, Department of Nuclear Engineering, University of California, Berkeley, for the availability of his indentation apparatus and Professor David J. Steigmann, Department of Mechanical Engineering, University of California, Berkeley for providing thoughtful feedback regarding the interpretation of the experimental results. The nanoindentation and SEM experiments were conducted at the California Institute of Quantitative Bioscience (QB3 Lab).

Finansörler	Finansör numarası
National Science Foundation
Directorate for Engineering	1449305
University of California Berkeley

Belgeye Erişim

10.1016/j.eml.2021.101202

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

@article{094cee525e234e63855cbb6139bb2ff2,

title = "Investigating the mechanical response of microscale pantographic structures fabricated by multiphoton lithography",

abstract = "The design of micromechanical devices that can facilitate large but recoverable deformations requires a mechanical behavior that embosoms hyperelasticity. While multiphoton lithography is the epitome of microscale fabrication, the employed materials demonstrate a linear elastic response accompanied by limited ductility. In this study, we investigate how this hindrance can be circumvented through the design of microscale pantographic structures. Pantographs possess riveting hyperelastic response inherited by their structural design, providing exorbitant reversible deformations. To prove the utility of pantographs in microscale design, finite element analysis simulations are performed to unravel the behavior of the structure as a function of its geometrical parameters. In addition, to evaluate the microscale modeling, specimens are fabricated with multiphoton lithography in a push to pull up configuration to accomplish in situ SEM microindentation tensile testing due to compression. Our findings are adduced to expound how the pantographic structures can embrace hyperelastic response even at the microscale, elucidating their feasibility for structural members in micromechanical devices that require reversible large deformations.",

keywords = "FEA modeling, Hyperelasticity, In situ SEM microindentation, Mechanical Metamaterials, Multiphoton lithography, Pantographic structures",

author = "Zacharias Vangelatos and Yildizdag, \{M. Erden\} and Ivan Giorgio and Francesco dell'Isola and Costas Grigoropoulos",

note = "Publisher Copyright: {\textcopyright} 2021",

year = "2021",

month = feb,

doi = "10.1016/j.eml.2021.101202",

language = "English",

volume = "43",

journal = "Extreme Mechanics Letters",

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TY - JOUR

T1 - Investigating the mechanical response of microscale pantographic structures fabricated by multiphoton lithography

AU - Vangelatos, Zacharias

AU - Yildizdag, M. Erden

AU - Giorgio, Ivan

AU - dell'Isola, Francesco

AU - Grigoropoulos, Costas

PY - 2021/2

Y1 - 2021/2

N2 - The design of micromechanical devices that can facilitate large but recoverable deformations requires a mechanical behavior that embosoms hyperelasticity. While multiphoton lithography is the epitome of microscale fabrication, the employed materials demonstrate a linear elastic response accompanied by limited ductility. In this study, we investigate how this hindrance can be circumvented through the design of microscale pantographic structures. Pantographs possess riveting hyperelastic response inherited by their structural design, providing exorbitant reversible deformations. To prove the utility of pantographs in microscale design, finite element analysis simulations are performed to unravel the behavior of the structure as a function of its geometrical parameters. In addition, to evaluate the microscale modeling, specimens are fabricated with multiphoton lithography in a push to pull up configuration to accomplish in situ SEM microindentation tensile testing due to compression. Our findings are adduced to expound how the pantographic structures can embrace hyperelastic response even at the microscale, elucidating their feasibility for structural members in micromechanical devices that require reversible large deformations.

AB - The design of micromechanical devices that can facilitate large but recoverable deformations requires a mechanical behavior that embosoms hyperelasticity. While multiphoton lithography is the epitome of microscale fabrication, the employed materials demonstrate a linear elastic response accompanied by limited ductility. In this study, we investigate how this hindrance can be circumvented through the design of microscale pantographic structures. Pantographs possess riveting hyperelastic response inherited by their structural design, providing exorbitant reversible deformations. To prove the utility of pantographs in microscale design, finite element analysis simulations are performed to unravel the behavior of the structure as a function of its geometrical parameters. In addition, to evaluate the microscale modeling, specimens are fabricated with multiphoton lithography in a push to pull up configuration to accomplish in situ SEM microindentation tensile testing due to compression. Our findings are adduced to expound how the pantographic structures can embrace hyperelastic response even at the microscale, elucidating their feasibility for structural members in micromechanical devices that require reversible large deformations.

KW - FEA modeling

KW - Hyperelasticity

KW - In situ SEM microindentation

KW - Mechanical Metamaterials

KW - Multiphoton lithography

KW - Pantographic structures

UR - https://www.scopus.com/pages/publications/85100632866

U2 - 10.1016/j.eml.2021.101202

DO - 10.1016/j.eml.2021.101202

M3 - Article

AN - SCOPUS:85100632866

SN - 2352-4316

VL - 43

JO - Extreme Mechanics Letters

JF - Extreme Mechanics Letters

M1 - 101202

ER -

Investigating the mechanical response of microscale pantographic structures fabricated by multiphoton lithography

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