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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Utilizing Pushover Analysis for Seismic Performance of Steel Bridge Structures

T.A. Ballard, A. Krimotat, R. Mutobe

SC Solutions, Inc., 3211 Scott Blvd., Santa Clara, CA 95050

SC Solutions paper, 1998

Abstract: Seismic retrofit of steel bridges requires more advanced analysis techniques to determine capacities and predict inelastic performance parameters. Normal engineering analysis practice assumes linear-elastic behavior for structural members, which fails to reliably account for re-distribution of forces due to member non-linear behavior and dissipation of energy due to material yielding. The performance criteria for the 1958 Carquinez Strait Bridges is “no-collapse” which implies that structural members may yield, exhibiting both material and geometric nonlinear behavior, provided that sufficient reserve strength and ductility remains to prevent the structure from collapsing. With increasing construction costs and tighter budgets, a key component in removing overconservatism in the final retrofit design and effecting a cost-efficient, yet sound design solution, is to take a more rigorous approach to the structural analysis. Advances in technology for computer hardware and software permitted the 1958 Carquinez Strait Bridge seismic retrofit project team to perform a non-linear dynamic analysis for the main span structure in order to better characterize the behavior of the bridge and quantify the damage the structure might sustain during a large seismic event. This paper discusses the non-linear pushover analysis, which was a key component of the non-linear dynamic analysis and of the overall retrofit design effort for the bridge. The development of the material properties for the steel members is discussed and results of the as-built, prototype retrofit and final retrofit pushover analyses for one of the bridge towers is used to examine the procedures and rationale implemented to perform a performance based analysis and design.

Nonlinear dynamic analysis of large diameter pile foundations for the Bay Bridge

Zechlin, Erik T. (California Dep of Transportation); Chai, Jianzhong Source: Geotechnical Special Publication, v 2, 1998, p 1223-1234

ISSN: 0895-0563 CODEN: GSPUER

Conference: Proceedings of the 1998 Conference on Geotechnical Earthquake Engineering and Soil Dynamics III. Part 2 (of 2), Aug 3-6 1998, Seattle, WA, USA

Publisher: ASCE

Abstract: The collapse of the span at Pier E9 of the San Francisco-Oakland Bay Bridge (SFOBB) during the 1989 Loma Prieta Earthquake was a warning call for engineers to consider the consequences of soft soil displacements on pile foundation design. Two new piers were proposed as part of the seismic retrofit strategy for the 60-year-old Cantilever truss portion of the SFOBB. From both San Andrea and Hayward faults, the design motions at bedrock were developed for these piers consisting of a set of response spectrum-compatible and coherency-compatible time histories. The presence of deep soft soil at the bridge site not only amplifies the ground motion and elongates the period of the bridge, it also induces large soil strains which degrade soil stiffness against piles (Idriss 1990, 1991; Dickenson et al. 1991). A soil-foundation-structure-interaction model driven by soil displacement time histories was established to take into account these critical factors. Using finite element programs ADINA (Bathe 1996) and PAR (1995), dynamic models were developed to perform seismic analyses and design for the two new piers. (18 refs.)

Keywords:  Soil structure interactions  -  Pile foundations  -  Bridge piers  -  Dynamic response  -  Earthquake resistance  -  Retrofitting  -  Stiffness  -  Finite element method  -  Structural analysis  -  Computer simulation

Secondary  Keywords:  Soft soils  -  Software package ADINA

 


Modal approach for processing one- and three-point bend test data for DSIF-time diagram determination. Part II - calculations and results

Rokach, I.V. (Kielce Univ of Technology) Source: Fatigue and Fracture of Engineering Materials & Structures, v 21, n 8, Aug, 1998, p 1015-1026

ISSN: 8756-758X CODEN: FFESEY

Publisher: Blackwell Sci Ltd

Abstract: In Part I of this paper, using the modal superposition method, equations for dynamic SIF calculations are derived for an arbitrary linear model of an impact bend specimen. In this paper (Part II), modal parameters and other data which are necessary for the DSIF determination have been calculated for three types of specimen model: the Euler-Bernoulli beam model, and two- (2D) and three-dimensional (3D) solid models. For the latter two cases, calculations were performed using the finite element program ADINA. Results for the 2D model of the specimen were fitted by polynomials for a wide range of specimen geometry parameters and Poisson's ratio values. Considerable differences were observed between the beam model parameters and the 2D or 3D ones. The differences in results for the 2D and 3D models are small and mainly connected with non-uniformity of the SIF distribution along the front of a through-crack in the 3D solid. Results of processing one- and three-point bend test data reported in the literature are presented. Numerical DSIF values are compared with the experimental ones. (18 refs.)

Keywords:  Stress intensity factors  -  Impact testing  -  Bending strength  -  Fatigue of materials  -  Finite element method  -  Mathematical models  -  Modal analysis  -  Polynomials

Secondary  Keywords:  Modal superposition method

 


Numerical simulation of screw-on and jump-out behavior of threaded casing connection

Qi, Junlin (Univ of Petroleum); Luo, Weidong; Zhang, Hong; Cui, Xiaobing Source: Shiyou Daxue Xuebao/Journal of the University of Petroleum China, v 22, n 4, 1998, p 68-71 Language: Chinese

ISSN: 1000-5870 CODEN: SDXZE7

Publisher: Univ Pet China

Abstract: The mechanism of jump-out of threaded casing connection is researched by using a finite element analysis program (ADINA). Displacement constraint functions are applied to describe the magnitude of overlapping and contact condition. Probing contact condition and elastoplastic equilibrium iterations are adopted in studying the mechanical property of threaded casing connection in screw-on and jump-out respectively. The jump-out criterion and maximum jump-out load are given. The conclusions are available for engineering design of casing connection. (5 refs.)

Keywords:  Oil well casings  -  Finite element method  -  Mechanics  -  Computer simulation

Secondary  Keywords:  Threaded casing connector  -  Numerical simulation

 


Thermal degradation of the concrete roof of high-level waste storage tank

Stuart, R. (ARES Corporation); Shipley, L.; Ghose, A.; Hiremath, M. Source: Computers and Structures, v 64, n 5-6, September, 1997, p 959-972

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: The DOE's high-level waste storage tank (HLWST) sites consist of single- and double-shell concrete tanks covered with soil overburden. Due to the high temperature (212°F and above) of the liquid-filled waste, the concrete walls and domed roofs are expected to endure thermal degradation which, in turn, may lead to cracking of the concrete. A remote video camera inspection of one such HLWST indicated some 'irregularities' on the inner surface of the tank dome. A finite element model using ADINA was developed to simulate the field conditions including concrete strength deterioration. The model was first validated against the results obtained from tests conducted on a 1/10th-scale model. The analysis was then extended to study the actual field behavior. The results confirmed the overall structural integrity of the tank by considering the global response of the tank and a detailed analysis of likely crack patterns in the dome area. The paper describes the complexities in validating the scale model as well as prototype response. 1997 Elsevier Science Ltd. (4 refs.)


Micromechanics-based FEM simulation of fiber-reinforced cementitious composite components

Geng, Y.P. (Inst. for Mechanics and Materials, University of California, San Diego); Leung, C.K.Y. Source: Computers and Structures, v 64, n 5-6, September, 1997, p 973-982

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: Fiber bridging along cracks is an important mechanism governing the fracture toughness and the pseudo-ductility of fiber-reinforced brittle materials and structures. This paper attempts to predict structural behavior of fiber-reinforced cementitious composite (FRCC) components using the finite-element procedure with micromechanics-based constitutive modeling of the stress-displacement relation along the crack. The tensile stress-displacement relation along a Mode I (opening) crack is established based on fiber pullout curves derived from a micromechanical model. A statistical model is used to account for random fiber distribution. Two-dimensional finite-element simulations of beam behavior are performed with the finite-element package ADINA. Using the discrete crack approach, strain softening truss elements are placed along the crack to simulate the fiber bridging effect. Experiments of beams under four-point bending are performed with specimens containing different fiber volume fractions (up to 1.5%). The numerical results for the load vs deformation behavior of the beams agree well with the experimental results. The FEM procedure for micromechanics-based design and analysis of FRCC components is therefore established. Simulation of component behavior to identify the most cost-effective design can, hence, be carried out. 1997 Elsevier Science Ltd. (26 refs.)


Finite element analysis of air-sheet interactions and flutter suppression devices

Wang, Xiaodong (Inst. of Paper Sci. and Technology) Source: Computers and Structures, v 64, n 5-6, September, 1997, p 983-994

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: A computational procedure is developed to analyze the vibration of an axially moving web, controlled through self-acting air bearings. The Galerkin finite element method is employed for the spatial discretization of both the moving web and thin air layers. The predictor-corrector method is also implemented along with the Newton-Raphson iteration for the time integration. It is shown that the pressurized air layers between the moving web and bearing surfaces can significantly reduce the transverse web deflection and provide a means of effective stabilizing. Some comparisons with results obtained using ADINA are presented. The computational algorithm introduced in this paper can be used to optimize both bearing-geometry designs and spatial locations. 1997 Elsevier Science Ltd. (13 refs.)


A strain-rate-dependent concrete material model for ADINA

Tedesco, J.W. (Department of Civil Engineering, Auburn University); Powell, J.C.; Ross, C. Allen; Hughes, M.L. Source: Computers and Structures, v 64, n 5-6, September, 1997, p 1053-1067

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: The analysis, design and/or evaluation of protective structures and facilities for military use demands the accurate determination of material and structural response to high-intensity, short-duration impulse loadings. There currently exists a preponderance of data supporting increased strength characteristics in concrete, the primary construction material for protective facilities, at high strain rates. This paper summarizes the modification of the nonlinear concrete material model currently employed in the ADINA finite-element computer programs to account for high strain rate effects. The resultant strain-rate-dependent concrete material model encompasses the strain-rate range from 10-7s-1 (quasi-static) to 103s-1, in both compression and tension. 1997 Elsevier Science Ltd. (30 refs.)


Finite-element analysis of a rotary oven for bread

Colla, M. (Department of Industrial Engineering, University of Parma); Rainieri, S.; Pagliarini, G. Source: Computers and Structures, v 64, n 5-6, September, 1997, p 1097-1112

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: The paper deals with a finite-element analysis of the turbulent forced-convection air flow inside a rotary oven for bread. The code ADINA-F is used for the numerical finite-element simulation. To describe the flow and the heat transfer inside the oven, a two-dimensional model has been adopted. The numerical heat-transfer convection coefficient is in good agreement with the experimental data thus providing a validation of the approximate model formulated in the numerical analysis. A structural change intended to enhance the convective heat transfer has been suggested and numerically tested. The results show a mean Nusselt number enhancement of about 30%. The finite-element analysis is, therefore, a helpful tool in estimating the performances of this kind of oven. 1997 Elsevier Science Ltd. (5 refs.)


Structural analysis of Francis turbine runners using ADINA

Wickstrom, A. (Kvaerner Energy) Source: Computers and Structures, v 64, n 5-6, September, 1997, p 1087-1095

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: ADINA is used as the primary design tool in the structural analysis of Francis turbine runners at Kvaerner Energy. An in-house developed finite-element mesh generator is used for quick and efficient modelling of any runner or runner vane segment in THREEDSOLID elements. The finite-element analyses include frequency analyses in order to avoid structural amplification of dynamic loads and static-strength analyses in order to obtain a uniform stress distribution in the runner. Comparison of the convergence has been carried out with respect to mesh density and order of the elements. The high-order elements (20- and 27-nodes) compute both smaller displacements and lower natural frequencies in comparison to eight-node elements. For stress calculations, only high-order elements are used. Poor structural design is one explanation of failures in some runners. Knowledge of structural performance secures structural integrity and reveals the potential for reducing weight. 1997 Elsevier Science Ltd. (3 refs.)


Modelling the behaviour of a control-element blade during irradiation

Massih, A.R. (Lulea University of Technology); Isaksson, P.; Stahle, P. Source: Computers and Structures, v 64, n 5-6, September, 1997, p 1113-1127

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: The control-rod elements in a boiling-water reactor contain natural boron carbide (B4C) powder, used as neutron-absorber material and clad in stainless-steel blades. During in-reactor service, the internal production of helium gas and point defects in neutron-irradiated boron carbide cause swelling which can induce significant contact stresses in the blade causing, eventually, stress-corrosion cracking of the blades. In this work, a finite-element analysis of a control-rod blade consisting of B4C powder and stainless-steel cladding has been performed using ADINA. An algorithm for the finite-element calculation of a porous material such as B4C powder has been developed and which models both swelling and consolidation behaviour of B4C powder. The Drucker-Prager constitutive law has been used to model the consolidation effect. The model has been verified with an analytical solution for a simple geometry. A number of cases with B4C powder in contact with stainless steel and using the actual blade design have been studied for which contact stresses, the displacements and the effective stresses are calculated. Finally, the model has been used to predict the deformation of the blade during irradiation under B4C swelling and irradiation-induced creep of stainless steel. 1997 Published by Elsevier Science Ltd. (9 refs.)


Simulation of the aquaplane problem

Zmindak, M. (Univ. of Transp. and Communications, Faculty of Mechanical Engineering, Dept. Mechanics and Strength of Mat.); Grajciar, I. Source: Computers and Structures, v 64, n 5-6, September, 1997, p 1155-1164

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: Finite-element analysis (FEA) has been widely integrated into the tire design process as a useful numerical tool for the investigation of various behavioural conditions of tires during their service life. Recently, much interest has been directed towards the contact of a tire with a water layer together with steering and braking capability (especially for the landing of airplanes). In this paper, we present several possibilities for the modeling of aquaplane problems with the ADINA system. The solution results, which relate to the character of fluid-flow pressure distribution and lift forces obtained by the steady-state analysis, yield important information for tire design. The water under the tire is considered to be an isothermal incompressible fluid and the tire structure is considered a deformable body. 1997 Elsevier Science Ltd. (16 refs.)


Nonlinear finite-element analysis of concrete dowels

Kraus, D. (Univ. Ger. Armed Forces Munich, Department of Structural Engineering); Wurzer, O. Source: Computers and Structures, v 64, n 5-6, September, 1997, p 1271-1279

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: Numerical studies used to investigate the bearing and deformation behavior of a new shear connector called 'concrete dowel', are presented. In performing the nonlinear analyses, the ADINA finite-element computer code was used. The validity of the finite-element model is shown by comparison with results of experimental tests. 1997 Elsevier Science Ltd. (8 refs.)


Prediction of thermoplastic failure of a reactor pressure vessel under a postulated core melt accident

Duijvestijn, G. (Lab. Safety and Accident Res. (LSU), Paul Scherrer Institute); Birchley, J.; Reichlin, K. Source: Computers and Structures, v 64, n 5-6, September, 1997, p 1239-1249

ISSN: 0045-7949 CODEN: CMSTCJ

Publisher: Elsevier Ltd

Abstract: This paper presents the lower-head failure calculations performed for a postulated accident scenario in a commercial nuclear power plant. A postulated 1 inch break in the primary coolant circuit leads to dry-out and subsequent meltdown of the core. The reference plant is a pressurized-water reactor without penetrations in the reactor vessel lower head. The molten core material accumulates in the lower head, eventually causing failure of the vessel. The analysis investigates flow conditions in the melt pool, temperature evolution in the reactor vessel wall and structure mechanical evaluation of the vessel under strong thermal loads and a range of internal pressures. The calculations were performed using the ADINA finite-element codes. The analysis focusses on the failure processes, and time and mode of failure. The most likely mode of failure at low pressure is global rupture due to gradual accumulation of creep strain over a large part of the heated area. In contrast, thermoplasticity becomes important at high pressure or following a pressure spike and can lead to earlier local failure. In situations in which part of the heat load is concentrated over a small area, resulting in a hot spot, local failure occurs, but not until the temperatures are close to the melting point. At low pressure in particular, the hot spot area remains intact until the structure is molten across more than half of the thickness. 1997 Elsevier Science Ltd. (16 refs.)

 



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