Results 21 to 30 of about 60,037 (278)

Analysis of Deformation in an Aluminium Hull Impacting Water Free Surface

Fluids, 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, Pierluigi Fanelli, Giacomo Falcucci, Stefano Ubertini, Elio Jannelli, Chiara Biscarini   +5 more
doaj   +1 more source

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

Measurement + 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, Yangyang Cheng, Lei Zhang, Zhaohua Li, Tao Xu, Faye Zhang, Mingshun Jiang, Qingmei Sui   +7 more
doaj   +1 more source

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

Sensors, 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, Dahang He, Zhenyi Zhao, Hong Bao   +3 more
doaj   +1 more source

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

Physical 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, A. W. T. Gregg, R. R. Jackson, C. M. Wensrich, A. Wills, A. S. Tremsin, T. Shinohara, V. Luzin, O. Kirstein   +8 more
openaire   +2 more sources

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

Sensors, 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, Feifei Zhao, Jingli Du, Hong Bao   +3 more
doaj   +1 more source

Shape Sensing of Plate Structures Using the Inverse Finite Element Method: Investigation of Efficient Strain–Sensor Patterns

Sensors, 2020
Methods for real-time reconstruction of structural displacements using measured strain data is an area of active research due to its potential application for Structural Health Monitoring (SHM) and morphing structure control.
Rinto Roy, Alexander Tessler, Cecilia Surace, Marco Gherlone   +3 more
doaj   +1 more source

Full-field strain measurement and identification of composites moduli at high strain rate with the virtual fields method [PDF]

, 2010
The present paper deals with full-field strain measurement on glass/epoxy composite tensile specimens submitted to high strain rate loading through a split Hopkinson pressure bar (SHPB) device and with the identification of their mechanical properties ...
MOULART, Raphaël, M. R. Wisnom, R. Moulart, HALLETT, Stephen R., Wisnom, M. R., Pierron, F., Hallett, S. R., S. R. Hallett, Moulart, R., F. Pierron, WISNOM, Michael R., Moulart, R, Hallett, SR, Pierron, F, Wisnom, MR, PIERRON, Fabrice   +15 more
core   +1 more source

Neutron Bragg edge tomography characterisation of residual strain in a laser-welded Eurofer97 joint

Nuclear Materials and Energy, 2023
Nuclear fusion is a potential source of electricity which can address the environmental problems posed by fossil fuels. Eurofer97 steel is a primary structural material for breeding blanket and divertor components in fusion Tokamaks.
Bin Zhu, Nathanael Leung, Winfried Kockelmann, Michael Gorley, Mark J. Whiting, Yiqiang Wang, Tan Sui   +6 more
doaj   +1 more source

Experimental Shape Sensing and Load Identification on a Stiffened Panel: A Comparative Study

Sensors, 2022
The monitoring of loads and displacements during service life is proving to be crucial for developing a modern Structural Health Monitoring framework.
Marco Esposito, Massimiliano Mattone, Marco Gherlone   +2 more
doaj   +1 more source

Strain field reconstruction and damage identification in masonry walls under in-plane loading using dense sensor networks of smart bricks: Experiments and simulations

, 2021
Cracks developing within a masonry structure induce changes in its strain field that can be measured for damage identification purposes through the adoption of strain-based structural health monitoring techniques.
De Lorenzis L., Meoni A., Kruse R., D'Alessandro A., Ubertini F.   +4 more
core   +1 more source