Publication result detail

SHAPE AND DIMENSIONAL ANALYSIS OF LATTICE STRUCTURES PRODUCED BY SELECTIVE LASER MELTING

VRÁNA, R.; VAVERKA, O.; KOUTNÝ, D.; DOČEKALOVÁ, K.; PALOUŠEK, D.

Original Title

SHAPE AND DIMENSIONAL ANALYSIS OF LATTICE STRUCTURES PRODUCED BY SELECTIVE LASER MELTING

English Title

SHAPE AND DIMENSIONAL ANALYSIS OF LATTICE STRUCTURES PRODUCED BY SELECTIVE LASER MELTING

Type

WoS Article

Original Abstract

Mechanical properties of lattice structures produced by Selective Laser Melting (SLM) are hardly predictable using a numerical simulation. It is caused by procedural inaccuracies of the SLM, such as shape and dimension deviations which are usually not included in a simulation. In order to quantify their influence, lattice structure specimens were produced by SLM and digitized in the whole volume using mu CT. The shape and dimensional analyses were performed in each strut of lattice structure using the developed script in GOM Inspect software. Based on statistical analysis, the global dimension parameters of lattice structures were obtained and used in FEA models. The shape analysis showed large deviations in diameters of inscribed and circumscribed cylinders which implied the elliptic shape of the lattice structure. It makes the lattice structure significantly stiffer mainly under compression loading which was confirmed by FEA comparison of circular and elliptical geometry of the lattice structure.

English abstract

Mechanical properties of lattice structures produced by Selective Laser Melting (SLM) are hardly predictable using a numerical simulation. It is caused by procedural inaccuracies of the SLM, such as shape and dimension deviations which are usually not included in a simulation. In order to quantify their influence, lattice structure specimens were produced by SLM and digitized in the whole volume using mu CT. The shape and dimensional analyses were performed in each strut of lattice structure using the developed script in GOM Inspect software. Based on statistical analysis, the global dimension parameters of lattice structures were obtained and used in FEA models. The shape analysis showed large deviations in diameters of inscribed and circumscribed cylinders which implied the elliptic shape of the lattice structure. It makes the lattice structure significantly stiffer mainly under compression loading which was confirmed by FEA comparison of circular and elliptical geometry of the lattice structure.

Keywords

Selective Laser Melting (SLM); lattice structures; shape analysis; dimension analysis; digitization; finite element analysis

Key words in English

Selective Laser Melting (SLM); lattice structures; shape analysis; dimension analysis; digitization; finite element analysis

Authors

VRÁNA, R.; VAVERKA, O.; KOUTNÝ, D.; DOČEKALOVÁ, K.; PALOUŠEK, D.

RIV year

2021

Released

04.06.2020

Publisher

MM SCIENCE

Location

PRAGUE 10

ISBN

1803-1269

Periodical

MM Science Journal

Volume

2020

Number

2

State

Czech Republic

Pages from

3938

Pages to

3942

Pages count

5

URL

https://www.mmscience.eu/journal/issues/june-2020/articles/shape-and-dimensional-analysis-of-lattice-structures-produced-by-selective-laser-melting

BibTex

@article{BUT164925,
  author="Radek {Vrána} and Ondřej {Vaverka} and Daniel {Koutný} and Kateřina {Dočekalová} and David {Paloušek}",
  title="SHAPE AND DIMENSIONAL ANALYSIS OF LATTICE STRUCTURES PRODUCED BY SELECTIVE LASER MELTING",
  journal="MM Science Journal",
  year="2020",
  volume="2020",
  number="2",
  pages="3938--3942",
  doi="10.17973/MMSJ.2020\{_}06\{_}2020013",
  issn="1803-1269",
  url="https://www.mmscience.eu/journal/issues/june-2020/articles/shape-and-dimensional-analysis-of-lattice-structures-produced-by-selective-laser-melting"
}