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Expansion of the dynamic strain field in 3D-printed structures using a hybrid modeling approach
ID Kodrič, Miha (Author), ID Čepon, Gregor (Author), ID Boltežar, Miha (Author)

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Abstract
The 3D printing of machine components is becoming an established technique. To ensure their robustness and longevity, it is crucial to numerically predict the dynamic response of these components in a variety of operating conditions. Dynamic properties are conventionally obtained in the form of displacement or strain-based response models. However, numerical modeling of the dynamic properties of 3D-printed structures can be a tedious task, mainly due to the complex geometry of the infill pattern and the influence of the printing parameters on the material and geometric properties. Alternatively, the dynamic properties can also be represented in the form of an experimental response model. This reflects the real dynamic properties, but is usually subject to measurement errors and has a low spatial resolution. To integrate the benefits of numerical and experimental response models, we propose a hybrid modeling approach with the System Equivalent Mixing method. The method was extended to a form that could integrate dynamic response models with different physical quantities (displacement and strain). The approach was then analyzed on a 3D-printed beam with a complex infill pattern, where an accurate expansion of the strain response to a high spatial resolution was demonstrated.

Language:English
Keywords:full-field strain response, expansion process PVDF, strain sensors, 3D print, modal analysis, frequency response function
Work type:Article
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Publication status:Published
Publication version:Author Accepted Manuscript
Publication date:10.12.2024
Year:2023
Number of pages:10 str.
Numbering:Vol. 206, art. 112339
PID:20.500.12556/RUL-143459 This link opens in a new window
UDC:004.925.84:510.643.5
ISSN on article:0263-2241
DOI:10.1016/j.measurement.2022.112339 This link opens in a new window
COBISS.SI-ID:134914563 This link opens in a new window
Publication date in RUL:21.12.2022
Views:417
Downloads:26
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Record is a part of a journal

Title:Measurement : journal of the International Measurement Confederation
Shortened title:Measurement
Publisher:Elsevier, International Measurement Confederation
ISSN:0263-2241
COBISS.SI-ID:25917696 This link opens in a new window

Secondary language

Language:Slovenian
Keywords:polje specifičnih deformacij, razširitveni proces, merilna zaznavala, 3D tisk, modalna analiza, frekvenčna prenosna funkcija

Projects

Funder:ARRS - Slovenian Research Agency
Project number:P2-0263
Name:Mehanika v tehniki

Funder:ARRS - Slovenian Research Agency
Project number:L2-1837
Name:Hibridne metode dinamičnega podstrukturiranja v industriji bele tehnike

Funder:ARRS - Slovenian Research Agency
Project number:N2-0144
Name:Optična metoda za obratovalno identifikacijo reduciranega nelinearnega modela

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