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Strain/Stress profile investigation of crystals mounted in an optical instrument via FEM simulation

Amarante Machado, Matheus LU (2023) MMTM05 20231
Production and Materials Engineering
Abstract
Abstract
This work is one of a series of related papers that were made in Lund University. They were done to analyze in a multi scalar way the Yttrium Orthosilicate crystals (YSO), analyzing the variation of material properties stemmed from the mounting, composition and other parameters in the optical properties of Yttrium Orthosilicate crystals.
This paper specifically focused on investigating the effect of the photoelasticity on the characteristics of the crystal, modeling the Strain/Stress effect on optical properties of pure and doped crystals due to variations in the mounting via FEM simulation.
In this work all the process is done with a combination of softwares firstly Abaqus and then Matlab. It starts with the creation and... (More)
Abstract
This work is one of a series of related papers that were made in Lund University. They were done to analyze in a multi scalar way the Yttrium Orthosilicate crystals (YSO), analyzing the variation of material properties stemmed from the mounting, composition and other parameters in the optical properties of Yttrium Orthosilicate crystals.
This paper specifically focused on investigating the effect of the photoelasticity on the characteristics of the crystal, modeling the Strain/Stress effect on optical properties of pure and doped crystals due to variations in the mounting via FEM simulation.
In this work all the process is done with a combination of softwares firstly Abaqus and then Matlab. It starts with the creation and development of a finite element model with adequate material properties and boundary conditions as in the references. To achieve an optical model the simulations were done with various geometries, material orientations, loads and load cases. From these procedures in Abaqus an output for the stress was generated and post processed in Matlab to generate the photoelasticity output. Both the stress and photoelasticity results are presented through this paper.
With this combined procedure this paper was able to present an optimized way to model the variation in optical properties of the crystal in its pure form and doped with Eu. Presenting indications of the effect of the variation in load type, load modulus and crystal orientation being able to present a comparison between them and suggesting future works to increase the knowledge on the topic and optimize the modeling even more. (Less)
Popular Abstract
Popular Science Summary
This work is one of a series of related papers that were made in Lund University. They were done to analyze in a multi scalar way the Yttrium Orthosilicate crystals (YSO) in its pure form and the one doped with Eu. This paper focus on the modeling of the photoelastic effect on the crystal, via finite element method. In this work all the process is done with a combination of software firstly Abaqus and then Matlab.
To know how this behavior can be modeled is important because its applications are in extreme environment, cryogenic state of the art lasers resonators in example. These conditions make it very hard and expensive to do testing for each variation and do measurements.
Therefore, a development of an... (More)
Popular Science Summary
This work is one of a series of related papers that were made in Lund University. They were done to analyze in a multi scalar way the Yttrium Orthosilicate crystals (YSO) in its pure form and the one doped with Eu. This paper focus on the modeling of the photoelastic effect on the crystal, via finite element method. In this work all the process is done with a combination of software firstly Abaqus and then Matlab.
To know how this behavior can be modeled is important because its applications are in extreme environment, cryogenic state of the art lasers resonators in example. These conditions make it very hard and expensive to do testing for each variation and do measurements.
Therefore, a development of an optical model for the simulations were done. In this primary work few variables of the system were analyzed as load modulus, orientation of the crystal, load direction/cases, geometries of the workpiece.
Firstly, a model as done in Abaqus to generate an output for the stresses and them it was post processed in Matlab to generate the photoelasticity output. Both the stresses and photoelasticity results are presented through this paper. With these combined procedures and data this paper was able to present an optimized way to model the variation in optical properties. In that way presenting indications of the effect of the variation in load type, load modulus and crystal orientation being able to present a comparison between them. (Less)
Please use this url to cite or link to this publication:
author
Amarante Machado, Matheus LU
supervisor
organization
course
MMTM05 20231
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Modeling, Abaqus, Y2SiO5, Finite Element Modeling, Strain, Stress, Yttrium Orthosilicate.
report number
CODEN:LUTMDN/(TMMV-5354)/1-113/2023
language
English
id
9128151
date added to LUP
2023-06-21 15:01:10
date last changed
2023-06-29 15:44:42
@misc{9128151,
  abstract     = {{Abstract
This work is one of a series of related papers that were made in Lund University. They were done to analyze in a multi scalar way the Yttrium Orthosilicate crystals (YSO), analyzing the variation of material properties stemmed from the mounting, composition and other parameters in the optical properties of Yttrium Orthosilicate crystals.
This paper specifically focused on investigating the effect of the photoelasticity on the characteristics of the crystal, modeling the Strain/Stress effect on optical properties of pure and doped crystals due to variations in the mounting via FEM simulation.
In this work all the process is done with a combination of softwares firstly Abaqus and then Matlab. It starts with the creation and development of a finite element model with adequate material properties and boundary conditions as in the references. To achieve an optical model the simulations were done with various geometries, material orientations, loads and load cases. From these procedures in Abaqus an output for the stress was generated and post processed in Matlab to generate the photoelasticity output. Both the stress and photoelasticity results are presented through this paper.
With this combined procedure this paper was able to present an optimized way to model the variation in optical properties of the crystal in its pure form and doped with Eu. Presenting indications of the effect of the variation in load type, load modulus and crystal orientation being able to present a comparison between them and suggesting future works to increase the knowledge on the topic and optimize the modeling even more.}},
  author       = {{Amarante Machado, Matheus}},
  language     = {{eng}},
  note         = {{Student Paper}},
  title        = {{Strain/Stress profile investigation of crystals mounted in an optical instrument via FEM simulation}},
  year         = {{2023}},
}