Object-oriented finite element programming: I. Governing principles

Zimmermann, Thomas; Dubois-Pèlerin, Yves; Bomme, Patricia

doi:10.1016/0045-7825(92)90180-r

Cited by 146 publications

(51 citation statements)

References 2 publications

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“…OOP has been introduced in structural engineering software in the 1990s, much after OOP languages had become available, and the OOP principles have been promoted by relevant research work [13][14][15][16][17][18][19]. However, the advantages of OOP have been appreciated only by a very small number of researchers.…”

Section: Object-oriented Programmingmentioning

confidence: 99%

Utilization of object-oriented programming, design patterns and java for simulating earthquake-induced poundings of base-isolated buildings

Komodromos¹,

Polycarpou²

2012

Int. J. CMEM

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Base-isolated buildings experience large horizontal relative displacements during strong earthquakes due to the excessive fl exibility that is purposely incorporated, through seismic bearings, at their bases. When the available clearance around a base-isolated building is limited, there is a possibility of the building pounding against the surrounding moat wall or adjacent structures. Considering the nonlinearities involved in this structural impact problem, it is evident that the effects of potential pounding on the overall seismic response of base-isolated buildings during earthquake excitations should be investigated numerically through appropriate simulations. Object-oriented programming (OOP), design patterns (DPs), and the Java programming language have been utilized in order to design and implement a fl exible and extendable software application that can be effectively used to perform the necessary numerical simulations and parametric studies of base-isolated buildings that may experience structural poundings during earthquake excitations. The aim of this paper is twofold: (i) to explain the signifi cant advantages of utilizing OOP, DPs, and Java in structural analysis software and (ii) to use the developed software to study earthquake-induced poundings of base-isolated buildings.

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Section: Object-oriented Programmingmentioning

confidence: 99%

Utilization of object-oriented programming, design patterns and java for simulating earthquake-induced poundings of base-isolated buildings

Komodromos¹,

Polycarpou²

2012

Int. J. CMEM

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“…the Node, Element, Constraint, and Load objects [6]. For other object-oriented finite element programs, class that is used for this purpose may use different names, such as NAP [26], LocalDB [27], Partition [28], FE_Model [29], Model [30], and Domain [31]. The functionality of the Domain class can be divided into two categories.…”

Section: Object Serializationmentioning

confidence: 99%

An engineering data access system for a finite element program

Peng

Liu

Law

2003

Advances in Engineering Software

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This paper describes a prototype implementation of an engineering data access system for a finite element analysis program. The system incorporates a commercial off-the-shelf (COTS) database as the backend to store selected analysis results; and the Internet is utilized as the communication channel to access the analysis results. The objective of using an engineering database is to provide the users the needed engineering information from readily accessible sources in a ready-to-use format for further manipulation. Three key issues regarding the engineering data access system are discussed, including data modeling, data representation, and data retrieval. The engineering data access system gives great flexibility and extendibility to the data management in finite element programs and can provide additional features to enhance the applicability of finite element analysis software.

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“…The first successful attempts to organizing a finite element program using the object-oriented paradigm dates back to [35][36][37] with the SMALLTALK programming language. Theresince, the ease of maintenance, reliability, and reusability of the OO generated software have given birth to multiple object-oriented finite element packages.…”

Section: Introductionmentioning

confidence: 99%

Enriched finite elements and level sets for damage tolerance assessment of complex structures

Bordas

Moran

2006

Engineering Fracture Mechanics

153

116

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The extended finite element method (X-FEM) has recently emerged as an alternative to meshing/remeshing crack surfaces in computational fracture mechanics thanks to the concept of discontinuous and asymptotic partition of unity enrichment (PUM) of the standard finite element approximation spaces. Level set methods have been recently coupled with X-FEM to help track the crack geometry as it grows. However, little attention has been devoted to employing the X-FEM in real-world cases. This paper describes how X-FEM coupled with level set methods can be used to solve complex threedimensional industrial fracture mechanics problems through combination of an object-oriented (C++) research code and a commercial solid modeling/finite element package (EDS-PLM/I-DEAS Ò ). The paper briefly describes how object-oriented programming shows its advantages to efficiently implement the proposed methodology. Due to enrichment, the latter method allows for multiple crack growth scenarios to be analyzed with a minimal amount of remeshing. Additionally, the whole component contributes to the stiffness during the whole crack growth simulation. The use of level set methods permits the seamless merging of cracks with boundaries. To show the flexibility of the method, the latter is applied to damage tolerance analysis of a complex aircraft component.

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Object-oriented finite element programming: I. Governing principles

Cited by 146 publications

References 2 publications

Utilization of object-oriented programming, design patterns and java for simulating earthquake-induced poundings of base-isolated buildings

Utilization of object-oriented programming, design patterns and java for simulating earthquake-induced poundings of base-isolated buildings

An engineering data access system for a finite element program

Enriched finite elements and level sets for damage tolerance assessment of complex structures

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