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Ton Duc Thang University (TDTU) is a public university with the main campus located in vibrant Ho Chi Minh City, Vietnam’s economic and educational hub. Founded in 1997, TDTU has developed into one of the largest and fastest growing universities in Vietnam with more than 22,000 students, enrolled in undergraduate and graduate programs ranging from science, engineering to business management, law, and humanities. To foster the country’s human resources and best serve the nation in the knowledge based economy of the 21st century, TDTU is combining vocational training with high-level research. The establishment of JAEC is one of TDTU’s efforts in this direction. More

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  • Vol 6, No 1 (2022)
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Nonlocal Operator Method for Solving Partial Differential Equations: State-of-the-Art Review and Future Perspectives

Yongzheng Zhang, Huilong Ren, Timon Rabczuk

Abstract


The nonlocal operator method (NOM) is based on nonlocal theory and employs nonlocal operators of integral form to replace the local partial differential operators. NOM naturally bridges models of different length scales and enables also the natural solution of problems with continuous to discontinuous solutions as they occur in the case of material failure. It also provides a natural framework for complex multifield problems. It is based on a variational principle or weighted residual method and only requires the definition of associated energy potential. As the NOM does not require any shape functions as ’traditional methods’ such as FEM, IGA or meshfree methods, its implementation is significantly simplified. It has been successfully applied to the solution of several partial differential equations (PDEs). This paper aims to provide a comprehensive description of the NOM together with a review of its major applications for the solution of PDEs for challenging engineering problems. Finally, we give some potential future research direction in the area of methods based on nonlocal operators.

Creative Commons License

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.



Keywords


Nonlocal operator method, Nonlocal operators, Dual-support, Operator energy functional, Variational principle, Taylor series expansion, Partial differential equations Nomenclature

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DOI: http://dx.doi.org/10.55579/jaec.202261.357

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Creative Commons License
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