Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 60 for “"nonlinear finite element analysis"”.
-
Nonlinear finite element analysis of tubular joints
In this study, important aspects of nonlinear behavior of tubular joints are numerically investigated with a finite element procedure including geometric and material nonlinearities. The numerical results give a clear and convincing physical interpretation of the effects of external loads on the …
-
On nonlinear finite element analysis of shell structures
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1984.
-
Nonlinear finite element analysis of sheet pile interlocks
A finite element program is developed to depict the behavior of a sheet pile interlock connection in an axial pull test. Two types of sheet piles, PS32 and PSX32, are considered. The thumb and finger in the interlock of a sheet pile will provide three contact points for connection with another …
-
Geometrically nonlinear finite element analysis of space frames
The displacement method of the finite element is adopted. Both the updated Lagrangian formulation and total Lagrangian formulation of a three-dimensional beam element is employed for large displacement and large rotation, but small strain analysis. A beam-column element or finite element can be …
-
Geometrically nonlinear finite element analysis of a lattice dome
The geometry and the finite element method modelling of a lattice dome is presented. Linear analyses and geometrically nonlinear analyses of the dome are performed. In addition, a buckling load prediction method is studied and extended to the multiple load distributions. The results obtained from …
-
Numerical and Software Requirements for General Nonlinear Finite-Element Analysis
Made available in DSpace on 2014-12-13T19:31:46Z (GMT). No. of bitstreams: 1 7913432.pdf: 6918643 bytes, checksum: fd7c47e7afa15520b423c6a01cc59333 (MD5) Previous issue date: 1978
-
Geometrically nonlinear finite element analysis of a glulam timber dome
A finite element modeling and geometrically nonlinear static analysis of glued-laminated timber domes is presented. The modeling and analysis guidelines include: the generation of the geometry, the selection of finite elements to model the components of a dome (beams, purlins, connections, and …
-
Nonlinear finite element analysis of reinforced concrete structures subjected to blast loading
This thesis is concerned with the development of finite element techniques for nonlinear dynamic analysis of planar and axisymmetric reinforced concrete structures subjected to blast loading. The main aspects of numerical modelling process to simulate blast loads, structural geometries and material …
-
Optimization of a roll over protective structure (ROPS) using nonlinear finite element analysis
… on the application of computer-aided design and analysis to structurally optimize the deployable ROPS and make it lighter. The first objective deals with the development of a finite element model (FEM) of the original deployable ROPS giving analytical results that matched the experimental …
-
Application of distributed algebraic multigrid to nonlinear finite element analysis of geomechanics problems
Includes bibliographical references (pages 108-112).
-
Failure Prediction of Spatial Wood Structures: Geometric and Material Nonlinear Finite Element Analysis
… modes, and predict the ultimate load. The finite element models of this study are based on the Crafts Pavilion dome (Triax) in Raleigh, North Carolina, and the Church of the Nazarene dome (Varax) in Corvallis, Oregon. Modeling considerations include 3-d beam finite elements, transverse …
-
Nonlinear Finite Element Analysis of FRP Strengthened RC Beams under Static and Cyclic Loads
… RC beams under static load. Very few finite element models for analysis of FRP-RC beam have been developed under cyclic load, and also the degradation of material properties of concrete, steel and FRP with number of cycles have been neglected in the existing few models. Most of the …
-
Nonlinear finite element analysis of a laminated composite plate with nonuniform transient thermal loading
… laminated composite plate behavior. Therefore, a finite element model which incorporates a first- order shear-deformation theory and nonlinear von Karman strains is described. The model is shown to accurately predict deflections in laminated composite plates due to nonuniform transient heat fluxes …
-
A comparison of two models for geometrically nonlinear finite element analysis of plane frames
… and compare two models for geometrically nonlinear finite element analysis of plane frames. One model is developed using classical beam-column theory, and the other is formulated using standard finite element techniques. The beam-column model is shown to converge to a more accurate …
-
Three dimensional geometrical and material nonlinear finite element analysis of adhesively bonded joints for marine structures
… research is directed at developing analysis tools for predicting the displacement, stress and strain fields in adhesively bonded joints between dissimilar adherends. In the finite element formulation, the adherends may be isotropic or orthotropic layered materials, which are assumed …
-
Slab-on-girder prestressed concrete bridges: linear and nonlinear finite element analysis and experimental load tests
… in prestressed concrete I-girder bridges. Finite element packages (Ansys and GT STRUDL) were used to perform the analyses for multiple bridge configurations, including a parametric study of span length, girder spacing, and concrete strength. It was found that intermediate diaphragms do not …
-
EFFICIENT SOLUTION METHODS FOR NONLINEAR FINITE ELEMENT ANALYSIS (DESIGN, GEOMETRIC MATERIAL, POST-BUCKLING, STRUCTURAL, MECHANICS, NUMERICAL).
Solution algorithms are developed for the nonlinear finite element equations, resulting from the discretization of governing incremental equations of equilibrium. The equations of equilibrium in the total Lagrangian formation are derived, based on continuum mechanics principles and by invoking the …
-
Nonlinear Finite Element Analysis of Laminated Composite Beams Subjected to Harmonic Excitations Using a 20 DOF Beam Element
<p>The purpose of this thesis is to study the nonlinear analysis of antisymmetrically laminated composite beams including shear deformation subjected to harmonic excitation, using a 20-degree of freedom finite element beam. The beam has 10 degrees of freedom at each node: The axial displacements, …
Page 1 of 3