Publication: Estudio del comportamiento termoelastoplástico del PMMA mediante el método de los elementos finitos
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2012-10
Defense date
2012-10-30
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Abstract
El presente proyecto “Estudio del comportamiento termoelastoplástico del PMMA mediante el método de los elementos finitos” se centra como su propio nombre indica en el estudio del comportamiento termoelastoplástico de polímeros, en especial en el PMMA o polimetilmetacrilato, utilizando para el estudio el método de los elementos finitos mediante un software comercial denominado Abaqus. En el proyecto se presenta una introducción a los materiales poliméricos, así como una descripción más profunda del material a emplear, el PMMA. También se introduce de forma breve el software empleado para la realización de los estudios, así como de la herramienta o subrutina empleada dentro del software para el perfeccionamiento y desarrollo del modelo. Como objetivo adicional a este proyecto, se establece un modelo de plasticidad válido para el PMMA, puesto que los modelos básicos conocidos de plasticidad aplicados a metales no son del todo adecuados. Una vez estudiados varios modelos de la bibliografía, se realiza una serie de simulaciones en la herramienta Abaqus a fin de estudiar su aplicabilidad y la influencia que inciden los distintos parámetros de cada modelo sobre el comportamiento elastoplástico o termoelastoplástico por incidencia de la temperatura del material. -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
This project “Study of thermoelastoplasticity behaviour of PMMA by finite element method” focuses as its name implies in studying the thermoelastoplasticity behavior of polymers, especially in the PMMA or polymethylmethacrylate, using a software tool for the study, based on finite element method named Abaqus. The project presents an introduction to polymer materials and a deeper description of the material that is used, the PMMA. It also briefly introduces the software used to carry out the studies and the tool or software subroutine used within the model to improve it or develop it. An additional objective of this project is to establish a valid model for PMMA plasticity, since known basic models of plasticity applied to metals are not entirely adequate. Once has been studied various models from the literature, it will conduct a series of simulations in our tool to explore their validity and the influence that different parameters regarding each model affects the elastoplasticity behaviour or thermoelastoplasticity behaviour by temperature influence on the PMMA.
This project “Study of thermoelastoplasticity behaviour of PMMA by finite element method” focuses as its name implies in studying the thermoelastoplasticity behavior of polymers, especially in the PMMA or polymethylmethacrylate, using a software tool for the study, based on finite element method named Abaqus. The project presents an introduction to polymer materials and a deeper description of the material that is used, the PMMA. It also briefly introduces the software used to carry out the studies and the tool or software subroutine used within the model to improve it or develop it. An additional objective of this project is to establish a valid model for PMMA plasticity, since known basic models of plasticity applied to metals are not entirely adequate. Once has been studied various models from the literature, it will conduct a series of simulations in our tool to explore their validity and the influence that different parameters regarding each model affects the elastoplasticity behaviour or thermoelastoplasticity behaviour by temperature influence on the PMMA.
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Keywords
Polímeros, Polimetilmetacrilato, PMMA, termoelastoplasticidad, Velocidad de deformación