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The displacement mechanism of the cracked rock – a seismic design and prediction study using XFEM and ANNs

Mughieda, Omer ; Guo, Lijie ; Tang, Yunchao ; Okasha, Nader M. ; Azimi, Sayed Javid ; Namdar, Abdoullah ; Azhar, Falak

Advanced Modeling and Simulation in Engineering Sciences, 2024-12, Vol.11 (1), p.4-24, Article 4 [Revista revisada por pares]

Cham: Springer International Publishing

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The displacement mechanism of the cracked rock – a seismic design and prediction study using XFEM and ANNs
Autor: Mughieda, Omer ; Guo, Lijie ; Tang, Yunchao ; Okasha, Nader M. ; Azimi, Sayed Javid ; Namdar, Abdoullah ; Azhar, Falak
Materias: Acceleration ; Analysis ; Artificial neural networks ; Classical and Continuum Physics ; Computational Science and Engineering ; Computer simulation ; Crack propagation ; Crack shape ; Crack speed ; Cracking (fracturing) ; Data-based engineering and computations ; Displacement ; Earthquake damage ; Earthquake resistant design ; Engineering ; Finite element method ; Initial crack ; Mathematical models ; Mechanical properties ; Neural networks ; Numerical analysis ; Propagation ; Research Article ; Sandstone ; Seismic design ; Seismic response ; Simulation methods ; Strain ; Theoretical and Applied Mechanics
Es parte de: Advanced Modeling and Simulation in Engineering Sciences, 2024-12, Vol.11 (1), p.4-24, Article 4
Descripción: Materials with sufficient strength and stiffness can transfer nonlinear design loads without damage. The present study compares crack propagation speed and shape in rock-like material and sandstone when subjected to seismic acceleration. The nonlinear extended finite element method (NXFEM) has been used in numerical simulation. It assumes the model has a pre-existing crack at 0° from the horizontal. The mechanical properties of the model, crack propagation shape, and crack speed were selected as the main parameters. The nonlinear stress and strain along the crack have been compared in two simulated models. NXFEM and Artificial Neural Networks (ANNs) were used to predict the displacement. The simulation results illustrate that the materials’ crack propagation mechanism and mechanical properties control the stress, strain, and displacement at the selected points in the model. In addition, crack propagation in materials is related to elastic-plastic stresses and strains along the crack path. The speed and shape of the crack are associated with the mechanical properties of the materials. The prediction of crack paths helps to understand failure patterns. Comparison of the seismic response of the rock-like material with sandstone helps to assess the stress, strain, and displacement levels during cracking. This study’s findings agree with the literature report and field observations.
Editor: Cham: Springer International Publishing
Idioma: Inglés

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The displacement mechanism of the cracked rock – a seismic design and prediction study using XFEM and ANNs

Mughieda, Omer ; Guo, Lijie ; Tang, Yunchao ; Okasha, Nader M. ; Azimi, Sayed Javid ; Namdar, Abdoullah ; Azhar, Falak

Cham: Springer International Publishing

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