Concept
Infinitesimal strain theory
Related publications (493)
Strain engineering and strain measurement by spring tethers on suspended epitaxial GaN-on-Si photonic crystal devices
Suspended epitaxial gallium nitride (GaN) on silicon (Si) photonic crystal devices suffer from large residual tensile strain, especially for long waveguides, because fine structures tend to crack due to large stress. By introducing spring-like tethers, des ...
Bristol2024Experimental and ab initio derivation of interface stress in nanomultilayered coatings: Application to immiscible Cu/W system with variable in-plane stress
Pandula Manura Liyanage, Claudia Cancellieri, Giacomo Lorenzin
Interface stress is a fundamental descriptor for interphase boundaries and is defined in strict relation to the interface energy. In nanomultilayers with their intrinsically high interface density, the functional properties are dictated by the interface st ...
Elsevier2024Highly anisotropic carbon fiber electrodes for DEAs and their dynamic non-monotonic conductive properties
Yves Perriard, Stefania Maria Aliki Konstantinidi, Markus Koenigsdorff
A common method for creating compliant electrodes for dielectric elastomer actuators (DEAs) and soft sensors is to incorporate electrically conductive carbon particles into a polymer matrix. However, using unidirectional aligned carbon fibers instead not o ...
Society of Photo-Optical Instrumentation Engineers (SPIE)2024Strain-based analysis on the influence of local undercut geometry on fatigue crack initiation life
Alain Nussbaumer, Heikki Tapani Remes, Abinab Niraula
The local undercut defects at the weld toe provide a potential initiation site for fatigue cracks and significantly impact the structure's fatigue strength. The influence of continuous undercut depth on fatigue performance is widely studied, but the resear ...
2024A pre-fatigue training strategy to stabilize LiCoO2 at high voltage
Lei Zhang, Kangning Zhao, Rui Xia
Layered cathodes are among the most promising cathodes for high-energy-density Li-ion batteries, yet hindered by the structural degradation from both bulk strain and surface oxygen loss at high voltage (above 4.5 V). Herein, we report a pre-fatigue trainin ...
Cambridge2024Extension of the OFFBEAT fuel performance code to finite strains and validation against LOCA experiments
Andreas Pautz, Carlo Fiorina, Alessandro Scolaro, Edoardo Luciano Brunetto
The mechanical analysis of nuclear fuel behavior under base-irradiation conditions has traditionally been performed adopting the small-strain approximation. However, many cases of interest for fuel behavior involve the occurrence of large rod deformations ...
ELSEVIER SCIENCE SA2023A reduced-order, rotation-based model for thin hard-magnetic plates
Pedro Miguel Nunes Pereira de Almeida Reis, Dong Yan, Bastien Freddy Gustave Aymon
We develop a reduced-order model for thin plates made of hard magnetorheological elastomers (hard-MREs), which are composed of hard-magnetic particles embedded in a polymeric matrix. First, we propose a new magnetic potential, as an alternative to an exist ...
PERGAMON-ELSEVIER SCIENCE LTD2023On the slip burst amplitude cutoff in dislocation-rich microcrystals
Andreas Mortensen, Luciano Borasi
The plastic deformation of small-scale face-centered cubic metals exhibits intermittent slip burst events that appear on stress-strain curves as sudden strain jumps and/or load drops. These events are generally attributed to the avalanche-like cooperative ...
Oxford2023Mesh d-refinement An efficient data-driven computational framework
Jean-François Molinari, Antonio Joaquin Garcia Suarez, Sacha Zenon Wattel
Model-free data-driven computational mechanics (DDCM) is a new paradigm for simulations in solid mechanics. As in traditional approaches, the boundary-value problem is formulated with physics-based PDEs, such as the balance of momentum and compatibility eq ...
2023Intrinsic-Strain Engineering by Dislocation Imprint in Bulk Ferroelectrics
Dragan Damjanovic, Fangping Zhuo
We report an intrinsic strain engineering, akin to thin filmlike approaches, via irreversible hightemperature plastic deformation of a tetragonal ferroelectric single-crystal BaTiO3. Dislocations wellaligned along the [001] axis and associated strain field ...
AMER PHYSICAL SOC2023