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 12 of 12 for “"nonlinear finite element model"”.
-
A Nonlinear Finite Element Model of the Human Eye to Investigate Ocular Injuries From Night Vision Goggles
… vision goggles when the airbag is deployed. A nonlinear finite element model of the human eye was constructed. Ocular structures never before included in finite element models of the eye, such as the fatty tissue, extraocular muscles, and bony orbit were included in this model. In addition, …
-
Nonlinear material modeling and finite element analysis of V-ribbed belts
… design and manufacturing. A three-dimensional nonlinear finite element model was built to study the belt-pulley contact interaction."--Abstract, page iv.
-
Evaluating the Use of Ductile Envelope Connectors for Improved Blast Protection of Buildings
… a generalized single degree of freedom dynamics model. A transient nonlinear finite element model was employed to verify the results. Selected BRDC designs were evaluated through nonlinear finite element analysis and experimental testing. This study found that for a reasonably wide range of blast …
-
Design of a composite combat helmet liner for prevention of blast-induced traumatic brain injury
… against blast-induced TBIs. The essential new element is the inclusion of moveable or deformable materials sandwiched within foam to dissipate the blast energy, reduce the peak transmitted pressure, and stretch the blast waveform before it reaches the brain. Filler materials explored in this …
-
Nonlinear finite element modeling and incremental analysis of a composite truck tire structure
… between the layers. In this dissertation, a nonlinear finite element model of a radial truck tire is developed based on its composite structural elements to analyze the various stress fields, with focus on the inter-ply shear stresses between the belt and carcass layers as functions of normal …
-
Reliability and effect of partially restrained wood shear walls
… determine the partial restraint effect, create a nonlinear finite element model, and to determine the statistical data required to perform a Monte Carlo simulation of the wall behavior.</p> <p>The Monte Carlo simulation result was used to calibrate a nonlinear partial restraint factor to a target …
-
Computational modeling of laser-induced delamination testing of thin films
… The objective of the current effort is to model the effect of residual stresses on the dynamic delamination of thin films. Residual stresses can be high enough to affect the crack advance and the mode mixity of the delimitation event, and must therefore be adequately modeled to make …
-
Analysis and Design of Steel Deck-Concrete Composite Slabs
… of the Steel Deck Institute method (SDI-M). A nonlinear finite element model is also developed to provide additional reference. These methods, which are supported by elemental tests of shear bond and end anchorages, offer an alternative solution to performing a large number of full-scale tests …
-
Non-Linear Finite Element Method Simulation and Modeling of the Cold and Hot Rolling Processes
A nonlinear finite element model of the hot and cold rolling processes has been developed for flat rolling stock with rectangular cross section. This model can be used to analyze the flat rolling of cold and hot steel rectangular strips under a series of different parameters, providing the rolling …
-
Modeling and Control of Surface Micromachined Thermal Actuators
<p>A model that accurately describes the transient and steady-state response of thermal microactuators is desirable to provide guidance for design and operation. However, modeling the full response of thermal actuators is challenging due to the temperature-dependent material properties and …
-
Modeling and Control of Tensegrity-Membrane Systems
… and gossamer spacecraft. In this dissertation, modeling and control of tensegrity-membrane systems is studied. A systematic method is developed to determine the equilibrium conditions of general tensegrity-membrane systems. Equilibrium conditions can be simplified when the systems are in …
-
Global-local Finite Element Fracture Analysis of Curvilinearly Stiffened Panels and Adhesive Joints
Global-local finite element analyses were used to study the damage tolerance of curvilinearly stiffened panels; fabricated using the modern additive manufacturing process, the so-called unitized structures, and that of adhesive joints. A damage tolerance study of the unitized structures requires …