Results 31 to 40 of about 652 (119)

Uncover Hidden Physical Information of Soft Matter by Observing Large Deformation. [PDF]

open access: yesAdv Sci (Weinh)
Detecting internal abnormalities in soft matter remains challenging due to its heterogeneous nature. This study introduces a method that infers hidden physical properties by matching observed deformation with simulation through parallel Bayesian optimization.
Yang H   +9 more
europepmc   +2 more sources

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   +1 more source

A two-dimensional four-node quadrilateral inverse element for shape sensing and structural health monitoring [PDF]

open access: yes, 2023
The inverse Finite Element Method (iFEM) is a powerful tool for shape sensing and structural health monitoring and has several advantages with respect to some other existing approaches.
Li, Mingyang   +2 more
core   +1 more source

Regional Stiffness and Hardening Indices: New Indicators Derived from Multidimensional Dynamic CTA for Aneurysm Risk Assessment. [PDF]

open access: yesAdv Sci (Weinh)
Two new indicators are derived from nonlinear stress–strain behavior obtained through in vivo biomechanical analysis of patient‐specific multidimensional dynamic computed tomography angiography. The regional stiffness index indicates the average stiffness while the hardening index reflects the pace of strain hardening.
Huang T   +10 more
europepmc   +2 more sources

A Refined Shape Sensing Method for Skin Antenna Structure Based on Inverse Finite Element Method

open access: yesApplied Sciences, 2020
An important issue in the existing inverse finite element method (iFEM) is that reconstruction accuracy cannot satisfy the analytical demand for the flexible structure.
Shengtao Niu   +3 more
doaj   +1 more source

Reconstruction of Wing Structure Deformation Based on Particle Swarm Optimization Ridge Regression

open access: yesInternational Journal of Aerospace Engineering, Volume 2022, Issue 1, 2022., 2022
In this paper, a typical airfoil aluminum plate structure is taken as the research object. A structural deformation monitoring and reconstruction method, PSO‐RR (particle swarm optimization‐ridge regression) algorithm, is proposed. A variety of different complex load cases are applied to the airfoil structure, and the strain values at some specific ...
Xinyi Wu   +3 more
wiley   +1 more source

Displacement and stress monitoring of a Panamax containership using inverse finite element method [PDF]

open access: yes, 2016
The inverse Finite Element Method (iFEM) is a revolutionary methodology for real - time reconstruction of full-field structural displacements and stresses in plate and shell structures that are instrumented by strain sensors.
Kefal, Adnan, Oterkus, Erkan
core   +1 more source

Displacement and stress monitoring of a chemical tanker based on inverse finite element method [PDF]

open access: yes, 2016
Real-time reconstruction of full field structural displacements, strains, and stresses by using surface strain measurements obtained from on-board strain sensors is commonly referred to as shape- and stress-sensing.
Kefal, Adnan, Oterkus, Erkan
core   +1 more source

Shape sensing of aerospace structures by coupling of isogeometric analysis and inverse finite element method [PDF]

open access: yes, 2017
This paper presents a novel isogeometric inverse Finite Element Method (iFEM) formulation, which couples the NURBS-based isogeometric analysis (IGA) together with the iFEM methodology for shape sensing of complex/curved thin shell structures. The primary
Kefal, Adnan, Oterkus, Erkan
core   +1 more source

An inverse method for determining the spatially resolved properties of viscoelastic–viscoplastic three-dimensional printed materials [PDF]

open access: yes, 2015
A method using experimental nanoindentation and inverse finite-element analysis (FEA) has been developed that enables the spatial variation of material constitutive properties to be accurately determined. The method was used to measure property variation
Ashcroft, I.   +3 more
core   +1 more source

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