ADINA Publications

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The Theory used in ADINA is richly documented in the following books by K.J. Bathe and co-authors


Finite Element Procedures
 

Finite Element Procedures in Engineering Analysis

Numerical Methods in Finite Element Analysis
 


The Mechanics of Solids and Structures — Hierarchical ...


The Finite Element Analysis of Shells — Fundamentals


Inelastic Analysis of Solids and Structures

 
 
To Enrich Life
(Sample pages here)
 

 

Following are more than 700 publications — that we know of — with reference to the use of ADINA. The pages give the Abstracts of some papers published since 1986 referring to ADINA. The most recent papers are listed first. All these papers may be searched using the box:

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Magnetostatics and coupled structural finite element analysis

Huang, L. (Texas Instruments Inc); Mandeville, R.E.; Rolph, W.D. III Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 199-207

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: This presentation overviews our electromagnetic finite element analysis capabilities and considers primarily the use of an electromagnetic analysis system (EMAS) integrated with ADINA in designing micromachines. Numerical methods for magnetic force calculation are summarized and the behavior of available finite elements is examined. The convergent force result is obtainable with special attention to the mesh refinement in order to use the least computational resources. A numerical procedure for magnetic body force calculation is suggested for magnetizable material which may also carry electric current. (12 refs.)

Keywords:  Magnetostatics  -  Finite element method  -  Electromagnetic field theory  -  Algorithms  -  Numerical methods  -  Electromechanical devices

Secondary  Keywords:  Coupled structural finite element analysis  -  Magnetic force  -  Electromagnetic analysis system  -  Micromachines

 


Wing mechanism analysis

Kroyer, Robert (LFK-Lenkflugkoerpersysteme GmbH) Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 253-265

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: For container launched and airborne missiles some wings have to be folded or undeployed for a minimum storage capacity. After leaving the container, the wings will be deployed to achieve the full aerodynamic performance and stability. The wing folding and deployment process is herein simulated by a finite element analysis using ADINA. The static, dynamic and strength behavior of the wing mechanism is discussed for a container launched missile. (6 refs.)

Keywords:  Wings  -  Missiles  -  Finite element method  -  Computer simulation  -  Aerodynamics  -  System stability  -  Performance  -  Kinematics  -  Stiffness

Secondary  Keywords:  Container launched missile  -  Wing dimensioning

 


Nonlinear analysis of a large bridge with isolation bearings

Mutobe, R.M. (SC Solutions Inc); Cooper, T.R. Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 279-292

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: As a part of the California Toll Bridge Seismic Retrofit Program, a global nonlinear time history analysis of the Benicia-Martinez Bridge was conducted using ADINA. A key component of the retrofit strategy was the implementation of friction pendulum bearings. Proper application of the frictional contact surface and the simulation of the restoring force of the bearing were critical to the evaluation of the proposed seismic retrofit. Various local models of the bearing system were developed to study its response and sensitivity to the modeling parameters. Responses of the ADINA friction pendulum bearing representation were compared to those of other nonlinear codes. The behavior predicted by the system of elements used in ADINA for the friction pendulum bearing produced results that matched very closely with other programs. Other important issues for analyzing the Benicia-Martinez Bridge are also discussed. (4 refs.)

Keywords:  Bridge bearings  -  Highway bridges  -  Finite element method  -  Computer simulation  -  Earthquake resistance  -  Seismology  -  Retrofitting  -  Dynamic response  -  Structural design

Secondary  Keywords:  Friction pendulum bearings  -  Frictional contact surface

 


Implementation of a viscoplastic model for crushed salt in the ADINA program

Pudewills, A. (Forschungszentrum Karlsruhe GmbH); Krauss, M. Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 293-299

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: This paper presents the numerical modeling of the thermomechanical behavior of crushed salt using a viscoplastic constitutive model. In the ADINA finite element code the viscoplastic model that considers both volumetric and deviatoric strain rates under hydrostatic and shear stress conditions proposed by Hein (Hein HJ. Ein stoffgesetz zur Beschreibung des thermomechanischen Verhaltens von Salzgranulat. Dissertation, RWTH Aachen, 1991) is implemented. A series of exercises were designed to verify the numerical implementation and the theoretical formulation of the proposed model. The applicability of the model to predicting the consolidation of a crushed salt specimen with step-wise stress increase and decrease, performed in laboratory tests, is examined. Finally, a benchmark problem taking into account the interaction between crushed salt and rock salt under nuclear waste repository conditions is analyzed. The calculated temperature, porosity and compaction pressure in crushed salt correspond to a large degree with the results of other numerical codes. (13 refs.)

Keywords:  Computer simulation  -  Salts  -  Finite element method  -  Computer software  -  Geological repositories  -  Strain  -  Shear stress  -  Temperature  -  Porosity  -  Pressure

Secondary  Keywords:  Viscoplastic model  -  Crushed salt  -  Software Package ADINA

 


Application of ADINA to stress analysis of an optical ground wire

Fekr, M. Roshan (McGill Univ); McClure, G.; Farzaneh, M. Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 301-316

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: Ground wires are metallic wires used in overhead power lines to protect the line conductors against lightning. An optical ground wire (OPGW) is composed of an envelope of one or two layers of metallic helical strands wound around a core containing optical fibers. In most OPGW constructions, the fibers are designed to be stress free or to experience only low stresses under normal operation loads. A three-dimensional finite element model of a cable was constructed to predict the stress distribution in each component when the cable is subjected to a given elongation. Modeling considerations are discussed, which pertain to geometric modeling and meshing, boundary conditions, contact and numerical methods. Results of stress analysis are presented in some detail for two examples; six wires and ten wires wound around a central tube. The results are compared with analytical approximate solutions available in the literature dating from 1973. (20 refs.)

Keywords:  Electric cables  -  Optical fibers  -  Overhead lines  -  Stress analysis  -  Computer simulation  -  Finite element method  -  Wire  -  Stress concentration  -  Mathematical models  -  Numerical methods

Secondary  Keywords:  Optical ground wire  -  Stranded cable  -  Contact analysis  -  Helical wires

 


Seismic analysis and base isolation retrofit design of a steel truss vertical lift bridge

Savage, Itunumi (Parsons Transportation Group); Eddy, John C.; Orsolini, Gregory I. Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 317-327

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: Bridges with steel superstructures are frequently ideal candidates for seismic retrofit utilizing base isolation. The seismic assessment and retrofit design of the Three Mile Slough Bridge included both the evaluation of a conventional retrofit scenario and a base isolation retrofit scenario. The structure is a five span riveted steel truss bridge with a vertical center lift span attached to the top of each 100 ft lifting tower by steel cables. The comprehensive analysis model had the following properties: 1. Non-linear springs captured soil-foundation structure interaction (SFSI); 2. Moment-curvature elements modeled reinforced concrete pier columns and capbeams; 3. Inelastic truss elements modeled isolation bearings; 4. Cable elements modeled the cable supporting the counterweight. This paper discusses a non-linear time history analysis using ADINA. Also, the modeling and evaluation of the performance in the isolation bearings is discussed. (6 refs.)

Keywords:  Steel bridges  -  Seismology  -  Structural design  -  Retrofitting  -  Computer simulation  -  Soil structure interactions  -  Bridge cables  -  Bridge piers  -  Trusses  -  Columns (structural)  -  Finite element method

Secondary  Keywords:  Steel truss vertical lift bridge  -  Seismic analysis  -  Base isolation

 


Volume triangulation from planar cross sections

Chae, Soo-Won (Korea Univ); Lee, Gyu-Min Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 93-108

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: In a CAD system, a series of sectional contours can be easily obtained from solid models of 3D objects. A new tetrahedral meshing algorithm from these series of planar cross sections is proposed. In this scheme, the planar sections of three-dimensional objects and the side surfaces between two planar sections are triangulated first, and then an advancing front algorithm is employed to construct tetrahedral elements by using basic operators. Sample meshes are constructed from a series of planar cross section and analysed using ADINA. (23 refs.)

Keywords:  Algorithms  -  Computer aided design  -  Computational geometry  -  Finite element method  -  Computer simulation  -  Three dimensional

Secondary  Keywords:  Mesh generation  -  Tetrahedral elements  -  Advancing front  -  Planar contours  -  Tiling


Wall stress and strain analysis using a three-dimensional thick-wall model with fluid-structure interactions for blood flow in carotid arteries with stenoses

Tang, Dalin (Worcester Polytechnic Inst); Yang, Chun; Huang, Yan; Ku, David N. Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 341-356

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: Wall mechanics and fluid-structure interactions play important roles in artery collapse and plaque cap rupture, which leads directly to heart attack and stroke. A three-dimensional thick-wall model with fluid-structure interactions was introduced and solved using ADINA to investigate the wall stress and strain distributions and flow properties of blood flow in carotid arteries with symmetric and asymmetric stenoses. The Navier-Stokes equations were used as the governing equations for the fluid. The tube wall was assumed to be hyperelastic, homogeneous, isotropic and incompressible. The Ogden material model was used for the tube wall. Experimental data for a silicone tube with a 78% stenosis by diameter was used to derive the stress-strain relationship for the material. Results obtained indicate that severe stenosis causes considerable compressive stress in the tube wall which may be related to plaque cap rupture. Stenosis severity and asymmetry have considerable influence on wall stress and strain distributions. Three-dimensional wall deformation, flow pressure, velocity and shear stress fields were investigated. (9 refs.)

Keywords:  Computer simulation  -  Hemodynamics  -  Blood vessels  -  Fluid structure interaction  -  Stress analysis  -  Strain  -  Finite element method  -  Computational fluid dynamics  -  Navier Stokes equations  -  Pressure  -  Velocity  -  Shear stress

Secondary  Keywords:  Three dimensional thick wall model  -  Carotid artery  -  Stenoses  -  Ogden material model

 


HOTPIPE Project: Capacity of pipes subject to internal pressure, axial force and bending moment

Vitali, Luigino (Snamprogetti); Bruschi, Roberto; Mork, Kim J.; Levold, Erik; Verley, Richard Source: Proceedings of the International Offshore and Polar Engineering Conference, v 2, 1999, p 22-33

CODEN: POPEEG ISBN-10: 1-880653-41-9

Conference: Proceedings of the 1999 9th International Offshore and Polar Engineering Conference (ISOPE-99), May 30-Jun 4 1999, Brest Sponsor: ISOPE

Publisher: ISOPE

Abstract: Several studies have been performed in order to better understand the local buckling of pipes subjected to internal pressure, axial load and bending moment. Experimental tests have been carried out and simplified analytical solutions have been developed in order to predict the pipe bending moment capacity and the allowable level of deformation. In recent years, the comparison of experimental tests and Finite Element Analysis (FEA) results, obtained with standard finite element structural codes available on the market such as ABAQUS, ADINA, ANSYS, etc., has demonstrated the capability of FEA to give robust and reliable results. Therefore, in the present study finite element methods have been used to create a `numerical testing laboratory' with the following advantages with respect to experimental tests: a better control of the relevant parameters affecting the pipe behaviour, an accurate monitoring of the loads and deformations along both the pipe axis and pipe circumference, a larger amount of information as regards both the stresses and the strains on the pipe model and a cheaper cost. This paper describes the main findings of the study performed in the HOTPIPE project aiming at establishing the failure mechanisms and limit state formulations of pipes subjected to internal pressure, bending moment and axial compression. (18 refs.)

Keywords:  Offshore pipelines  -  Structural analysis  -  Bending (deformation)  -  Failure analysis  -  Mathematical models  -  Finite element method

Secondary  Keywords:  High pressure/high temperature pipelines

 


HOTPIPE Project: Snaking of submarine pipelines resting on flat sea bottom using finite element method

Torselleti, Enrico (Snamprogetti); Vitali, Luigino; Levold, Erik Source: Proceedings of the International Offshore and Polar Engineering Conference, v 2, 1999, p 34-45

CODEN: POPEEG ISBN-10: 1-880653-41-9

Conference: Proceedings of the 1999 9th International Offshore and Polar Engineering Conference (ISOPE-99), May 30-Jun 4 1999, Brest Sponsor: ISOPE

Publisher: ISOPE

Abstract: In the last years, the use of simplified analytical models has been a standard approach to analyze the lateral buckling of high temperature and high pressure pipelines. Recently, Finite Element (FE) approaches, obtained with standard finite element structural codes available on the market such as ABAQUS, ADINA, ANSYS, etc. have been introduced to analyze the effects of non linearity e.g. steel material, soil-pipe interaction and large displacements. This paper describes the main findings of the study performed in the HOTPIPE project aiming at establishing the mechanisms of the lateral snaking of an isolated buckle in pipes subjected to extreme operational conditions. In particular the following topics are considered: Description of the FE model used in the calculation of the pipeline response when subjected to high temperature/high pressure loads; Comparison of the simplified analytical model results with the FE model results; Determination of the effect of plastification on the pipe response in the post-buckling region for isolated buckle; Identification of the uncertainties relevant to the significant parameters. (18 refs.)

Keywords:  Submarine pipelines  -  Structural analysis  -  Buckling  -  Mathematical models  -  Finite element method

Secondary  Keywords:  High pressure/high temperature pipelines  -  Lateral buckling

 


3-D thin-wall model with fluid-structure interactions for blood flow in carotid arteries with symmetric and asymmetric stenoses

Tang, Dalin (Worcester Polytechnic Inst); Yang, Chun; Ku, David N. Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 357-377

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: Severe stenosis may lead to critical flow conditions related to artery collapse, plaque cap rupture which lead directly to stroke and heart attack. A three-dimensional (3-D) thin-wall model with flow-structure interactions was introduced and solved using ADINA to investigate the wall deformation and flow properties of blood flow in carotid arteries with symmetric and asymmetric stenoses. The Navier-Stokes equations were used as the governing equations for the fluid. The tube wall was assumed to be hyperelastic, homogeneous, isotropic and incompressible. The nonlinear large strain Ogden material model was used for the wall with the elastic properties determined experimentally for a silicone tube with a 78% stenosis by diameter. The results revealed that the behaviors of the 3-D flow pressure, velocity and shear stress fields are very different from those of 2-D models. Stenosis severity and asymmetry have considerable effects on those critical flow conditions such as negative pressure and high shear stress were found which may be related to artery collapse and plaque rupture. (46 refs.)

Keywords:  Computer simulation  -  Hemodynamics  -  Blood vessels  -  Fluid structure interaction  -  Finite element method  -  Computational fluid dynamics  -  Navier Stokes equations  -  Pressure  -  Velocity  -  Shear stress  -  Three dimensional

Secondary Keywords:  Three dimensional thin wall model  -  Carotid artery  -  Stenosis  -  Software Package ADINA

 


Analytical and computational approaches for some fluid-structure interaction analyses

Wang, Xiaodong (Inst of Paper Science and Technology) Source: Computers and Structures, v 72, n 1-3, Jul-Aug, 1999, p 423-433

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Science Ltd

Abstract: In this paper, we present an analytical model to study the interaction between a slender structure and the surrounding incompressible viscous flows. The governing equations for the suspended structure are derived under small deformation assumptions and with the consideration of fluid pressures and frictional forces. We obtain the discretized equations using the standard linearization procedure and spatial finite difference schemes. It is shown that for both laminar and turbulent flow conditions, the results derived from analytical approaches match the solutions of the ADINA fluid-structure analysis. Of course when geometries of fluid domains are complex, it is necessary to use a general purpose computational software. We also point out that for specific problems, such as the dynamic stability analysis of the structure surrounded by pulsatile flows, there is still a need for analytical approaches. (20 refs.)

Keywords:  Fluid structure interaction  -  Viscous flow  -  Computer simulation  -  Linearization  -  Finite difference method  -  Pressure  -  Loads (forces)  -  Laminar flow  -  Turbulent flow  -  Finite element method  -  Computational fluid dynamics  -  Pulsatile flow

Secondary  Keywords:  Incompressible viscous flow  -  Frictional forces

 


On J Integral as Fracture Parameter in Heterogeneous Welded Joints

Kang, J.D. (Department of Power Engineering, Nanjing Univ. Aero. and Astronaut.); Huo, L.X.; Zhang, Y.F. Source: Key Engineering Materials, v 145-149, 1998, p 41-46

ISSN: 1013-9826 CODEN: KEMAEY

Publisher: Trans Tech Publications Ltd

Abstract: The J integral parameter and the feasibility of its application in welded joints with different weldmatchings in yield strength (overmatching weld and undermatching weld), different material constitutive laws (Material with a Ludes yield plateau and power hardening) and under different fracture types (ligament yielding fracture and general yielding fracture) are investigated. The condition of J integral path independence has been studied based upon finite deformation elastic-plastic finite element analysis by using ADINA code on welded joints mentioned above. It was shown that J integral is path dependent for the cases studied in this paper. Experiments were carried out to study the availability of J integral as a plastic singularity parameter at the tip of the notch in welded joints. The results showed that J dominance in most cases studied is not validated in v and u displacement fields. It can therefore be concluded that the J-integral as a controlling parameter which is used to estimate the safety of welded strutures is not always valid. (8 refs.)


Inelastic behavior of sand-lime mortar joint masonry arches

Rosson, Barry T. (Univ of Nebraska-Lincoln); Soyland, Ketil Source: Engineering Structures, v 20, n 1-2, Jan-Feb, 1998, p 14-24

ISSN: 0141-0296 CODEN: ENSTDF

Publisher: Elsevier Sci Ltd

Abstract: The response of masonry arch bridges to moving wheel loads was simulated in the laboratory by hanging steel weights from the center of gravity of selected voussoirs of four arches. Elastic and plastic deformations occur in the sand-lime mortar joints, where significant plastic behavior occurs under the first few cycles of loading, then an elastic response follows when the magnitude of load and the load cycles increase. The results from the ultimate load testing show that the collapse load depends significantly on the load history of the arch and that a sliding failure can override a four-hinge mechanism. A model of the arch ring using ADINA and the Drucker-Prager material model indicates that plastic accumulations do not occur after the first load cycle; however, it is believed that sliding occurs between the voussoirs and the mortar, producing small inelastic deformations under moving loads. (13 refs.)

Keywords:  Arch bridges  -  Masonry bridges  -  Joints (structural components)  -  Elasticity  -  Dynamic response  -  Computer simulation  -  Plastic deformation  -  Load testing  -  Failure analysis  -  Finite element method  -  Mortar  -  Sand  -  Lime

Secondary  Keywords:  Inelastic deformation  -  Software Package ADINA

 


Modelling of internal stress distribution and deformation behaviour in the precipitation hardened superalloy SC16

Kuttner, T. (Hahn-Meitner-Inst Berlin GmbH); Wahi, R.P. Source: Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, v A242, n 1-2, Feb, 1998, p 259-267

ISSN: 0921-5093 CODEN: MSAPE3

Publisher: Elsevier Science S.A.

Abstract: The deformation behaviour, at elevated temperatures, of the single crystal nickel-base superalloy SC16 has been modelled. The constitution of the alloy consists of the precipitates of the ordered g prime phase embedded in a g (f.c.c. solid solution) matrix. The material model used incorporates the ideas based on the current understanding of the deformation mechanisms in this alloy at elevated temperatures. The model allows both the g and g prime phases to deform inelastically. Simulations were performed for (001) orientation of the specimen. The Finite Element code ADINA was employed for 3D stress/strain analysis. The mechanical data of this alloy have not been used to determine parameters for the model. The model predictions of the creep rate are in fair agreement with the experimental observations and also allow qualitative interpretation of deformed microstructures. (35 refs.)

Keywords:  Nickel alloys  -  Superalloys  -  Single crystals  -  Stress concentration  -  Residual stresses  -  Age hardening  -  Mathematical models  -  Creep  -  Stress analysis  -  Strain  -  Crystal orientation  -  Finite element method  -  Computer simulation

Secondary  Keywords:  Nickel alloy SC16  -  Software package ADINA

 

Analysis of an arch-gravity dam with a horizontal crack

S. Malla, M. Wieland

Electrowatt Engineering Ltd, Bellerivestrasse 36, PO Box, CH-8034 Zurich, Switzerland

Computers and Structures, 72:267-278, 1999

Abstract: A horizontal crack first appeared along the downstream wall of the upper gallery of an arch-gravity dam after 25 years of operation. Since then, the crack has extended over the whole length of the upper gallery and the crack opening has been continually increasing. This has been accompanied by an irreversible displacement of the dam crest towards the upstream side. This problem was investigated with the help of a three-dimensional finite-element model of the dam foundation system. The results of an extensive finite element study show that such behaviour can be satisfactorily explained with an assumption of a gradual increase of the volume of the mass concrete due to
alkali-aggregate reactions (AAR). The testing of the mass concrete used in the dam also indicates a substantial potential for the occurrence of such reactions.

Keywords: Arch-gravity dam - mass concrete - thermal analysis - fracture mechanics -  alkali-aggregate reactions - inelastic displacements



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