ETDs @PUC-Rio
| Título: | NUMERICAL FINITE ELEMENT ANALYSIS OF RESIDUAL STRESSES GENERATED BY TREATED PHASE CHANGES IN THERMICALLY STELLS | ||||||||||||||||
| Autor: |
MARCELLO GOULART TEIXEIRA |
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| Colaborador(es): |
LUIZ ELOY VAZ - Orientador CARLOS SERGIO DA COSTA VIANA - Coorientador |
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| Catalogação: | 20/MAI/2002 | Língua(s): | PORTUGUESE - BRAZIL |
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| Tipo: | TEXT | Subtipo: | THESIS | ||||||||||||||
| Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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| Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=2635&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=2635&idi=2 |
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| DOI: | https://doi.org/10.17771/PUCRio.acad.2635 | ||||||||||||||||
| Resumo: | |||||||||||||||||
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The objective of this thesis is to perform a finite element
analysis of residual stress in Fe-Ni alloys and carbon
steel heat-treated pieces, considering phase changes.
To achieve this goal, a object oriented computer code for
the non-linear thermal analysis coupled with a code for a
micro-structural analysis were developed. OPP codes were
also created for an elasto-plastic analysis, with
temperature distribution and constituents partial fraction
as input data. The material properties are considered
dependent on both the temperature and the partial fraction
for all analyses.In the thermal treatment, the martensite
transformation according to Koistinen and Marburger (1959)
scheme and the diffusional formation of pearlite and
bainite according to Avrami (1939) are considered.
Finally, a new model to calculate the kinetics parameters
of the diffusional austenite-pearlite and austenite-bainite
transformations is presented.
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