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3D strain field reconstruction by inversion of dynamical scattering [PDF]

Applied Physics Letters
Strain governs not only the mechanical response of materials but also their electronic, optical, and catalytic properties. For this reason, the measurement of the 3D strain field is crucial for a detailed understanding and for further development of material properties through strain engineering.
Laura Niermann, Tore Niermann, Chengyu Song, Colin Ophus   +3 more
openaire   +2 more sources

Synchronized Full-Field Strain and Temperature Measurements of Commercially Pure Titanium under Tension at Elevated Temperatures and High Strain Rates

Metals, 2021
Understanding the mechanical behavior of materials at extreme conditions, such as high temperatures, high strain rates, and very large strains, is fundamental for applications where these conditions are possible. Although tensile testing has been used to
Guilherme Corrêa Soares, Mikko Hokka
doaj   +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

Shape Sensing for an UAV Composite Half-Wing: Numerical Comparison between Modal Method and Ko’s Displacement Theory

Aerospace, 2022
Shape sensing is the reconstruction of the displacement field of a structure from some discrete surface strain measurements and is a key technology for structural health monitoring. The aim of this paper is to compare two approaches to shape sensing that
Filippo Valoriani, Marco Esposito, Marco Gherlone   +2 more
doaj   +1 more source

Deformation Field Reconstruction Algorithm of Frame Structure Based on iBeam3 Element

Nanjing Hangkong Hangtian Daxue Xuebao
Structural deformation， as one of the important indicators of structural health monitoring， is crucial for evaluating structural strength performance. In practical engineering， due to engineering use and other factors， the number and placement of strain ...
LI Longfei, TAO Chongcong, ZHANG Chao, JI Hongli   +3 more
doaj   +1 more source

Pancake-like antiphase domains in perfect nitrogen-expanded austenite by TEM characterization

Materials Research Express, 2023
Elongated superstructure diffraction spots were observed in perfect nitrogen-expanded austenite without stress or plastic strain, which was prepared by plasma-based low-energy nitrogen-ion implanting Fe-Cr-Ni austenitic alloy foils at low temperature of ...
H L Che, X Yang, M K Lei
doaj   +1 more source

Reconstruction of myocardial tissue motion and strain fields from displacement-encoded MR imaging

American Journal of Physiology-Heart and Circulatory Physiology, 2009
A quantitative analysis of myocardial mechanics is fundamental to understanding cardiac function, diagnosis of heart disease, and assessment of therapeutic intervention. Displacement encoding with stimulated-echo (DENSE) magnetic resonance imaging (MRI) technique was developed to track the three-dimensional (3D) displacement vector of discrete ...
Yi, Liu, Han, Wen, Robert C, Gorman, James J, Pilla, Joseph H, Gorman, Gerald, Buckberg, Shawn D, Teague, Ghassan S, Kassab   +7 more
openaire   +3 more sources

General Reconstruction of Elastic Strain Fields from their Longitudinal Ray Transform

SIAM Journal on Applied Mathematics
We develop an algorithm for reconstruction of elastic strain fields from their Longitudinal Ray Transform (LRT) in either two or three dimensions. In general, the LRT only determines the solenoidal part of a symmetric tensor field, but elastic strain fields additionally satisfy mechanical equilibrium, an extra condition that allows for full ...
Chris M. Wensrich, Sean F. Holman, William R. B. Lionheart, Matias Courdurier, Anna Polyakova, Ivan Svetov, Ty Doubikin   +6 more
openaire   +2 more sources

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source