Algoritmo de integración para materiales no lineales considerando los efectos de viscoplasticidad, endurecimiento cinemático no lineal y daño
In the Finite Element Method (FEM) material non-linearities are considered through incremental formulations in terms of a pseudo-time variable for the case of rate independent models and a real time variable in the case of rate-dependent models. The incremental statement of the problem implies tha...
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| Institution: | Universidad EIA |
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| Main Author: | |
| Format: | Artículo de revista |
| Language: | Español |
| Published: |
Civil, Ambiental Geológica e Industrial
2014-05-07
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| Subjects: | |
| Online Access: | https://repository.eia.edu.co/handle/11190/539 |
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| Summary: | In the Finite Element Method (FEM) material non-linearities are considered through incremental
formulations in terms of a pseudo-time variable for the case of rate independent models and a real time variable
in the case of rate-dependent models. The incremental statement of the problem implies that the constitutive
models need to be time-integrated at the local level. In this article we discuss a standard algorithm available in
the literature where additionally we have incorporated the effects of non-linear kinematic hardening, viscoplasticity,
and damage. The algorithm is incorporated into a FEM code. In order to verify the correctness of our
implementation we have particularized the model to the case of a creep law available from literature for solder
alloys. Numerical simulation results are compared with experiments taken from the literature.
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| Physical Description: | 16 p. |
| ISSN: | ISSN 17941237 |
