طه حسين عبد الله محمد ابو النجا
مدرس
Computation of singular integrals in variational boundary element method
Computers and Mathematics with Applications • 2025
معلومات البحث
المؤلفون
Naga, Taha HA and Rashed, Youssef F
الكلمات المفتاحية
Boundary element method; Variational formulation; Stiffness matrix; Singular integrals; Elasticity problems; Taylor series expansion
المجلة العلمية
Computers and Mathematics with Applications
الناشر
ELSEVIER
المجلد
188
العدد
Not Available
الصفحات
244-26
publication.type
International
رابط البحث
Not Available
المواد المرفقة
Not Available
الملخص
This paper introduces a novel technique for addressing singular kernels in the variational
boundary element formulation. The study presents an expansion centered on two explicit singular
points, enabling the isolation of all relevant singular terms and extending the analytical capabilities to curved elements, thereby broadening the applicability of the formulation. The proposed
method comprehensively addresses all types of singularities and is validated through rigorous and
extensive numerical experimentation on examples with varied geometries, loading conditions,
and boundary conditions. The diversity and inclusivity of these examples highlight the reliability
and effectiveness of the proposed approach in solving two-dimensional elasticity problems.
boundary element formulation. The study presents an expansion centered on two explicit singular
points, enabling the isolation of all relevant singular terms and extending the analytical capabilities to curved elements, thereby broadening the applicability of the formulation. The proposed
method comprehensively addresses all types of singularities and is validated through rigorous and
extensive numerical experimentation on examples with varied geometries, loading conditions,
and boundary conditions. The diversity and inclusivity of these examples highlight the reliability
and effectiveness of the proposed approach in solving two-dimensional elasticity problems.
