Skip to main content
Log in

A Domain Decomposition Approach Using Equilibrated Basis Functions: Special Reference to Structural Engineering Problems with Varying Material Properties

  • Research Paper
  • Published:
Iranian Journal of Science and Technology, Transactions of Civil Engineering Aims and scope Submit manuscript

Abstract

In this paper, we demonstrate that with a set of bases weakly satisfying the governing equation of an engineering problem on fictitious subdomains, known here as equilibrated basis functions (EqBFs), a variety of structural problems may be solved with ease of domain decomposition/discretization. Such a feature enables us to select the sub-domains freely (in contrast to the finite element method for instance). The EqBFs are constructed using Chebyshev polynomials and through a weighted residual integration over fictitious rectangular subdomains. Through some numerical examples, it is shown that the method performs very well even in comparison with efficient existing methods.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16
Fig. 17

Similar content being viewed by others

References

  • Atluri SN, Zhu T (2000) New concepts in mesh-less methods. Int J Numer Methods Eng 47:537–556

    Article  Google Scholar 

  • Bateniparvar O, Noormohammadi N, Boroomand B (2020) Singular functions for heterogeneous composites with cracks and notches: the use of equilibrated singular basis functions. Comput Math Appl 79:1461–1482

    Article  MathSciNet  Google Scholar 

  • Belytschko T, Lu YY, Gu L (1994) Element-free Galerkin methods. Int J Numer Methods Eng 37:229–250

    Article  MathSciNet  Google Scholar 

  • Bergan PG, Felippa CA (1985) A triangular membrane element with rotational degrees of freedom. Comput Methods Appl Mech Eng 50:25–69

    Article  Google Scholar 

  • Boroomand B, Noormohammadi N (2013) Weakly equilibrated basis function for elasticity problems. Eng Anal Bound Elem 37:1712–1727

    Article  MathSciNet  Google Scholar 

  • Boroomand B, Soghrati S, Movahedian B (2010) Exponential basis functions in solution of static and time harmonic elastic problems in a mesh-less style. Int J Numer Methods Eng 81:971–1018

    Article  Google Scholar 

  • Boroomand B, Azhari F, Shahbazi M (2013) On definition of clamped conditions in TSDT and FSDT; the use of exponential basis functions in solution of laminated composites. Compos Struct 97:129–135

    Article  Google Scholar 

  • Cheung YK, Jin WG, Zienkiewicz OC (1989) Direct solution procedure for solution of harmonic problems using complete non-singular Trefftz functions. Commun Appl Numer Methods 5:159–169

    Article  Google Scholar 

  • Cook RD (1974) Improved two-dimensional finite element. J Struct Div (ASCE) 100:1851–1863

    Article  Google Scholar 

  • Farhat C, Roux F (1991) A method of finite element tearing and interconnecting and its parallel solution algorithm. Int J Numer Methods Eng 32:1205–1227

    Article  MathSciNet  Google Scholar 

  • Farhat C, Lesoinne M, LeTallec P, Pierson K, Rixen D (2001) FETI-DP: a dual–primal FETI method. Part I: a faster alternative to the two-level FETI method. Int J Numer Methods Eng 50:1523–1544

    Article  Google Scholar 

  • Kita E, Kamiya N, Iio T (1999) Application of a direct Trefftz method with domain decomposition to 2D potential problems. Eng Anal Bound Elem 23:539–548

    Article  Google Scholar 

  • Kupradze VD, Aleksidze MA (1964) The method of functional equations for the approximate solution of certain boundary value problems. USSR Comput Math Math Phys 4:82–126

    Article  MathSciNet  Google Scholar 

  • Lü CF, Chen WQ, Xu RQ, Lim CW (2008) Semi-analytical elasticity solutions for bi-directional functionally graded beams. Int J Solids Struct 45:258–275

    Article  Google Scholar 

  • Mandel J (1993) Balancing domain decomposition. Commun Numer Methods Eng 9:233–241

    Article  MathSciNet  Google Scholar 

  • Metsis P, Papadrakakis M (2012) Overlapping and non-overlapping domain decomposition methods for large-scale mesh-less EFG simulations. Comput Methods Appl Mech Eng 229–232:128–141

    Article  Google Scholar 

  • Mikhlin SG (1951) On the Schwarz algorithm. Doklady Akademii Nauk SSSR 77:569–571 (in Russion)

    Google Scholar 

  • Mirfattah SM, Boroomand B, Soleimanifar E (2019) On the solution of 3D problems in physics: from the geometry definition in CAD to the solution by a meshless method. J Comput Phys 393:351–374

    Article  MathSciNet  Google Scholar 

  • Movahedian B, Boroomand B, Soghrati S (2013) A Trefftz method in space and time using exponential basis functions: application to direct and inverse heat conduction problems. Eng Anal Bound Elem 37:868–883

    Article  MathSciNet  Google Scholar 

  • Noormohammadi N, Boroomand B (2014) A fictitious domain method using equilibrated basis functions for harmonic and bi-harmonic problems in physics. J Comput Phys 272:189–217

    Article  MathSciNet  Google Scholar 

  • Noormohammadi N, Boroomand B (2017) Construction of equilibrated singular basis functions without a priori knowledge of analytical singularity order. Comput Math Appl 73:1611–1626

    Article  MathSciNet  Google Scholar 

  • Noormohammadi N, Boroomand B (2019) Enrichment functions for weak singularities in 2D elastic problems with isotropic and orthotropic materials. Appl Math Comput 350:402–415

    MathSciNet  MATH  Google Scholar 

  • Oñate E, Idelsohn S, Zienkiewicz OC, Taylor RL (1996) A finite point method in computational mechanics: applications to convective transport and fluid flow. Int J Numer Methods Eng 39:3839–3866

    Article  MathSciNet  Google Scholar 

  • Shahbazi M, Boroomand B, Soghrati S (2011) A mesh-free method using exponential basis functions for laminates modeled by CLPT, FSDT and TSDT. Part I: formulation. Compos Struct 93:3112–3119

    Article  Google Scholar 

  • Soleimanifar E, Boroomand B, Mossaiby F (2014) A meshless method using local exponential basis functions with weak continuity up to a desired order. Comput Mech 53:1355–1374

    Article  MathSciNet  Google Scholar 

  • Timoshenko S, Woinowsky-Krieger S (1959) Theory of plates and shells. McGraw-Hill, New York

    MATH  Google Scholar 

  • Trefftz E (1926) Ein Gegenstück zum ritzchen Verfahren. In: Proceedings of the 2nd international congress for applied mechanics, pp 131–137

  • Wang M, Liu Y (2010) Analytical solution for bi-material beam with graded intermediate layer. Compos Struct 92:2358–2368

    Article  Google Scholar 

  • Zandi SM, Boroomand B, Soghrati S (2012) Exponential basis functions in solution of incompressible fluid problems with moving free surfaces. J Comput Phys 231:505–527

    Article  MathSciNet  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Nima Noormohammadi.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Noormohammadi, N., Boroomand, B. A Domain Decomposition Approach Using Equilibrated Basis Functions: Special Reference to Structural Engineering Problems with Varying Material Properties. Iran J Sci Technol Trans Civ Eng 45, 667–681 (2021). https://doi.org/10.1007/s40996-020-00404-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40996-020-00404-x

Keywords

Navigation