Taha Hussein Abd Allah Mohamed
Lecturer
Method of Fundamental Solutions without Fictitious Boundary in Elastodynamic Behavior Using Dual Reciprocity Method
ASCE's Journal of Engineering Mechanics • 2024
Publication Information
Authors
Taha H. A. Naga
Keywords
Meshless method; Method of fundamental solutions; Elasticity; Dual reciprocity method (DRM); Transient dynamic
analysis.
Journal
ASCE's Journal of Engineering Mechanics
Publisher
American Society of Civil Engineers (ASCE)
Volume
150
Issue
2
Pages
Not Available
publication.type
International
Paper Link
Open Link
Supplementary Materials
Not Available
Abstract
In this paper, a meshless method for analyzing the elastodynamic behavior of two-dimensional problems is introduced. The
nonsingular method of fundamental solutions (NMFS) is combined with the method of particular solutions. To overcome singularities arising
from point-shaped sources, a technique known as the boundary distributed source (BDS) method is used, which involves distributing sources
across disks centered on the boundary. The NMFS is regarded as a mesh-free boundary method due to source point independence to the
neighboring source details. The dual reciprocity method (DRM) with a suitable approximation is used to obtain the particular solution
corresponding to the nonhomogeneous inertial term; moreover, added benefits of eliminating domain integration and readiness for computer
algorithms anchor desirability. Cautious investigation of solutions to various numerical examples using DRM reinforces reliability and accuracy.
Finally, the study comprehensively examines factors such as the number of collocation points, internal points, the radius of the circular
disk, and the time-step size to assess their impact on achieving convergence.
nonsingular method of fundamental solutions (NMFS) is combined with the method of particular solutions. To overcome singularities arising
from point-shaped sources, a technique known as the boundary distributed source (BDS) method is used, which involves distributing sources
across disks centered on the boundary. The NMFS is regarded as a mesh-free boundary method due to source point independence to the
neighboring source details. The dual reciprocity method (DRM) with a suitable approximation is used to obtain the particular solution
corresponding to the nonhomogeneous inertial term; moreover, added benefits of eliminating domain integration and readiness for computer
algorithms anchor desirability. Cautious investigation of solutions to various numerical examples using DRM reinforces reliability and accuracy.
Finally, the study comprehensively examines factors such as the number of collocation points, internal points, the radius of the circular
disk, and the time-step size to assess their impact on achieving convergence.
