Results 11 to 20 of about 8,936,346 (275)

Enhanced Strain Field Reconstruction in Ship Stiffened Panels Using Optical Fiber Sensors and the Strain Function-Inverse Finite Element Method

open access: yesApplied Sciences, 2023
Accurately reconstructing the strain field within stiffened ship panels is crucial for effective structural health monitoring. This study presents a groundbreaking approach to strain field reconstruction in such panels, utilizing optical fiber sensors in
Qingfeng Zhu   +7 more
doaj   +2 more sources

Computationally efficient stress reconstruction from full-field strain measurements

open access: yesComputational Mechanics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Halilovič, Miroslav   +2 more
openaire   +3 more sources

Full-Field Strain and Stress Reconstruction Using a Hybrid ML–iFEM Approach

open access: yese-Journal of Nondestructive Testing
Accurate full-field reconstruction of structural stress and strain remains a central challenge in structural health monitoring, particularly when only sparse sensing data are available during operation. While the inverse finite element method (iFEM) is widely recognised for its robustness in displacement and stress estimation, its practical ...
Ilias N. giannakeas   +4 more
openaire   +2 more sources

Numerical studies of soil base deformations from reconstructed multi-storey building to nearby buildings [PDF]

open access: yesE3S Web of Conferences, 2021
During the building reconstruction with floors addition, there is a need to evaluate the building frame and foundation soil bearing capacity, especially if there are deviations from the design parameters.
Mirsayapov Ilisar   +2 more
doaj   +1 more source

Reconstruction of three-dimensional strain field in an asymmetrical curved core–shell hetero-nanowire

open access: yesNanotechnology, 2023
Abstract Crystal orientation and strain mapping of an individual curved and asymmetrical core–shell hetero-nanowire (NW) is performed based on transmission electron microscopy. It relies on a comprehensive analysis of scanning nanobeam electron diffraction data obtained for 1.3 nm electron probe size.
Serhii Kryvyi   +3 more
openaire   +4 more sources

Analysis of Deformation in an Aluminium Hull Impacting Water Free Surface

open access: yesFluids, 2022
Water impacts provide a challenge for a wide range of applications, from aerospace, to marine, mechanical and civil engineering, due to the complexity conveyed by the coexistence of impulsive loads, large local deformations and high-amplitude vibrations.
Alessandro Mercuri   +5 more
doaj   +1 more source

Displacement field reconstruction technique for plate-like structures based on model superposition method

open access: yesMeasurement + Control, 2023
To achieve real-time sensing and deformation reconstruction of flexible plate structure, a 3D reconstruction technique based on a quasi-distributed fiber grating sensor network and order-optimized modal superposition method is proposed.
Jie Yan   +7 more
doaj   +1 more source

Coarse and Fine Two-Stage Calibration Method for Enhancing the Accuracy of Inverse Finite Element Method

open access: yesSensors, 2023
The inverse finite element method (iFEM) is a novel method for reconstructing the full-field displacement of structures by discrete measurement strain. In practical engineering applications, the accuracy of iFEM is reduced due to the positional offset of
Jiewei Lu   +3 more
doaj   +1 more source

Tomographic reconstruction of triaxial strain fields from Bragg-edge neutron imaging [PDF]

open access: yesPhysical Review Materials, 2019
This paper presents a proof-of-concept demonstration of triaxial strain tomography from Bragg-edge neutron imaging within a three-dimensional sample. Bragg-edge neutron transmission can provide high-resolution images of the average through thickness strain within a polycrystalline material.
J. N. Hendriks   +8 more
openaire   +2 more sources

Two-Step Calibration Method for Inverse Finite Element with Small Sample Features

open access: yesSensors, 2020
When the inverse finite element method (inverse FEM) is used to reconstruct the deformation field of a multi-element structure with strain measurements, strain measurement errors can lower the reconstruction accuracy of the deformation field. Furthermore,
Libo Xu   +3 more
doaj   +1 more source

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