Results 61 to 70 of about 652 (119)

Structural health monitoring of precracked structures using an in‐plane inverse crack‐tip element

International Journal of Mechanical System Dynamics, Volume 4, Issue 4, Page 406-426, December 2024.
Abstract This study investigates the application of the inverse finite element method (iFEM) in fracture mechanics by developing a novel two‐dimensional six‐node triangular inverse crack‐tip element. With its simplified formulation, the proposed inverse element is computationally efficient and ensures strain singularity at the crack tip by ...
Ihtisham Khalid, Zahid Ahmed Qureshi, Hafiz Qasim Ali, Selda Oterkus, Erkan Oterkus   +4 more
wiley   +1 more source

Finite element analysis with deformed shape constraints generated by laser‐scanned point clouds

International Journal for Numerical Methods in Engineering, Volume 125, Issue 19, 15 October 2024.
Abstract This article proposes a computational method for finite element analysis with deformed shape constraints for analyzing constructed structures to account for deformations that occur before shape measurement by a terrestrial laser scanner (TLS).
Hibiya Haraki, Yasunori Yusa, Hiroshi Masuda   +2 more
wiley   +1 more source

Structural Health Monitoring through Vibration‐Based Approaches

, 2019
Shock and Vibration, Volume 2019, Issue 1, 2019.
Giosuè Boscato, Luca Zanotti Fragonara, Antonella Cecchi, Emanuele Reccia, Daniele Baraldi   +4 more
wiley   +1 more source

A multiscale preconditioner for crack evolution in porous microstructures: Accelerating phase‐field methods

International Journal for Numerical Methods in Engineering, Volume 125, Issue 11, 15 June 2024.
Abstract Phase‐field methods are attractive for simulating the mechanical failure of geometrically complex porous microstructures described by 2D/3D x‐ray μ$$ \mu $$CT images in subsurface (e.g., CO 2$$ {}_2 $$ storage) and manufacturing (e.g., Li‐ion battery) applications.
Kangan Li, Yashar Mehmani
wiley   +1 more source

Reconstruction of Multi-Load Strain Field of Ship Stiffened Plate Based on iFEM and Analysis of Influencing Factors of Reconstruction Accuracy

Journal of Marine Science and Engineering
This study utilizes the inverse finite element method (iFEM) to investigate the strain field reconstruction of ship stiffened plates under multiple loading conditions.
Guocai Chen, Xueliang Wang, Quanhua Zhu, Huawei Yang, Zhentao Jiang, Hao Xu, Mengdan Sun, Wei Chen, Haozheng Chen, Tao Zhang, Zheng Zhang   +10 more
doaj   +1 more source

Real-Time Monitoring of the Position and Orientation of a Radio Telescope Sub-Reflector with Fiber Bragg Grating Sensors

Sensors, 2019
Environmental loads linked with pointing errors, such as gravity, thermal gradients, and wind disturbances, are a serious concern for large-aperture high-frequency radio telescopes.
Yong Zhao, Jingli Du, Qian Xu, Hong Bao
doaj   +1 more source

Structural health monitoring of marine structures by using inverse finite element method [PDF]

, 2015
A new state-of-the art methodology named as inverse Finite Element Method (iFEM) is adopted to solve the inverse problem of real-time reconstruction of full-field structural displacements, strains, and stresses.
Kefal, A., Oterkus, E.
core  

Programming of Finite Element Methods in MATLAB

, 2018
We discuss how to implement the linear finite element method for solving the Poisson equation. We begin with the data structure to represent the triangulation and boundary conditions, introduce the sparse matrix, and then discuss the assembling process ...
Chen, Long
core  

Study on Strain Field Reconstruction Method of Long-Span Hull Box Girder Based on iFEM

Journal of Marine Science and Engineering
The box girder’s condition significantly impacts the safety and overall performance of the entire ship because it is the primary stress component of the hull construction.
Guocai Chen, Xueliang Wang, Nan Zhao, Zhentao Jiang, Fei Li, Haozheng Chen, Pengyu Wei, Tao Zhang   +7 more
doaj   +1 more source

Strain pre-extrapolation methods for shape sensing: A comparative study between modal virtual sensor expansion and smoothing element analysis

Results in Engineering
Reconstructing displacement fields from sparse strain measurements, commonly referred to as shape sensing, has become a key component in developing effective Structural Health Monitoring (SHM) systems and for enabling accurate digital twin ...
Marco Esposito
doaj   +1 more source