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VOLUMETRIC NON-DESTRUCTIVE MEASUREMENT OF 3D PRINTED STRUCTURES

Ondrej Lokos, Richard Dvořák, Kristýna Hrabová

First published: 2025-12-27https://doi.org/10.5593/sgem2025v/6.2/s26.22View metrics

Abstract

Non-destructive testing (NDT) of 3D-printed concrete is challenging due to complex geometries and layer-dependent material heterogeneity. Photogrammetry captures surface geometry, but its outputs cannot be directly linked to NDT values. This study presents a workflow that integrates photogrammetric models with rebound hammer measurements and applies radial basis function (RBF) interpolation to visualize near-surface strength. Each measurement point is matched to its 3D coordinates on the mesh, enabling consistent data integration and automated mapping. The RBF visualization distinguishes between measured, interpolated, and unsupported regions and highlights weak zones at layer interfaces and areas affected by printing irregularities. The approach provides an effective tool for assessing surface uniformity in 3D-printed concrete and supports future diagnostic methods combining geometry and NDT data.

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Publication details

Title
VOLUMETRIC NON-DESTRUCTIVE MEASUREMENT OF 3D PRINTED STRUCTURES
Authors
Ondrej Lokos, Richard Dvořák, Kristýna Hrabová
Proceedings
25th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2025, Nano, Bio, Green and Space: Technologies for Sustainable Future, Vol 25, Issue 6.2
Publisher
STEF92 Technology
Year
2025
Pages
173-180
SWS Citekey
Lokos202525173180
ISSN
1314-2704; 13142704
ISBN
9786197603958
Language
en
Publication type
Conference Paper
Proceedings contents
Open official contents
Keywords
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