Experimental and numerical modal characterization for additively manufactured triply periodic minimal surface lattice structures: Comparison between free-size and homogenization-based optimization methods

Name: Experimental and numerical modal characterization for additively manufactured triply periodic minimal surface lattice structures: Comparison between free-size and homogenization-based optimization methods
Author: Özdemir, Mirhan, Simsek, U., Kuşer, Engin, Gayir, C. E., Celik, A., Şendur, Polat

İsim	Experimental and numerical modal characterization for additively manufactured triply periodic minimal surface lattice structures: Comparison between free-size and homogenization-based optimization methods
Yazar	Özdemir, Mirhan, Simsek, U., Kuşer, Engin, Gayir, C. E., Celik, A., Şendur, Polat
Basım Tarihi:	2023-06
Basım Yeri	- Wiley
Konu	Free-size optimization, Functionally graded lattices, Homogenization, Topology optimization, Triply periodic minimal surface (TPMS)
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1438-1656
Kayıt Numarası	2ffc8b0b-ba4f-43b9-b72e-8f6355a80126
Lokasyon	Mechanical Engineering
Tarih	2023-06
Notlar	TÜBİTAK
Örnek Metin	Homogenization-based topology optimization (HMTO) is one of the most extensively used grading methods to generate functionally graded lattice structures (FGLs). However, it requires a precharacterization of the lattices, which is time-consuming. As a remedy, free-size optimization-based graded lattice generation (FOGLG) is explored as an alternative method to generate the FGLs. This article builds on the authors’ previous work in which the HMTO and FOGLG approaches are studied to improve the dynamic characteristic of a design by using a single lattice type, namely, double gyroid (DG) structure. To show applicability of the proposed methods, different lattice types including diamond (D), gyroid (G), and I-WP are employed to create FGLs herein. The frequency response analysis is performed, and the results from HMTO and FOGLG are compared in terms of their accuracy and efficiency. The optimized designs are then reconstructed by relative density mapping (RDM) and enhanced relative density mapping (ERDM) methods. The fabricated test samples made of cobalt–chromium using the direct metal laser melting (DMLM) technique are then experimentally validated using a laser vibrometer. The results reveal that HMTO and FOGLG can be used on the lattice types with a variety of configurations and relative densities.
DOI	10.1002/adem.202201811
Cilt	25

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Experimental and numerical modal characterization for additively manufactured triply periodic minimal surface lattice structures: Comparison between free-size and homogenization-based optimization methods

Yazar Özdemir, Mirhan, Simsek, U., Kuşer, Engin, Gayir, C. E., Celik, A., Şendur, Polat

Basım Tarihi 2023-06

Basım Yeri - Wiley

Konu Free-size optimization, Functionally graded lattices, Homogenization, Topology optimization, Triply periodic minimal surface (TPMS)

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1438-1656

Kayıt Numarası 2ffc8b0b-ba4f-43b9-b72e-8f6355a80126

Lokasyon Mechanical Engineering

Tarih 2023-06

Notlar TÜBİTAK

Örnek Metin Homogenization-based topology optimization (HMTO) is one of the most extensively used grading methods to generate functionally graded lattice structures (FGLs). However, it requires a precharacterization of the lattices, which is time-consuming. As a remedy, free-size optimization-based graded lattice generation (FOGLG) is explored as an alternative method to generate the FGLs. This article builds on the authors’ previous work in which the HMTO and FOGLG approaches are studied to improve the dynamic characteristic of a design by using a single lattice type, namely, double gyroid (DG) structure. To show applicability of the proposed methods, different lattice types including diamond (D), gyroid (G), and I-WP are employed to create FGLs herein. The frequency response analysis is performed, and the results from HMTO and FOGLG are compared in terms of their accuracy and efficiency. The optimized designs are then reconstructed by relative density mapping (RDM) and enhanced relative density mapping (ERDM) methods. The fabricated test samples made of cobalt–chromium using the direct metal laser melting (DMLM) technique are then experimentally validated using a laser vibrometer. The results reveal that HMTO and FOGLG can be used on the lattice types with a variety of configurations and relative densities.

DOI 10.1002/adem.202201811

Cilt 25