Numerical inspection based on Quasi-Static Analysis using Rousselier Damage Model for aluminium wingbox aircraft structure
The present paper illustrates a modelling technique of void damage prediction using constitutive Rousselier damage model in wingbox aircraft structure. The high possibility of aluminium wingbox structure to deform during operating become a driving force in this study. The Rousselier model is impl...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing Ltd
2018
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/73585/ http://irep.iium.edu.my/73585/ http://irep.iium.edu.my/73585/ http://irep.iium.edu.my/73585/1/Ahmad_2018_J._Phys.__Conf._Ser._1106_012013.pdf |
| Summary: | The present paper illustrates a modelling technique of void damage prediction
using constitutive Rousselier damage model in wingbox aircraft structure. The high possibility
of aluminium wingbox structure to deform during operating become a driving force in this
study. The Rousselier model is implemented by the user-defined material subroutine UMAT
in the ABAQUS/ Standard. The wingbox is a part of a commercially-made commuter aircraft
prototype, in which steady aerodynamic pressure is applied as the quasi-static, ranging from
cruise load factor until the ultimate load factor. This analysis is divided into three assessments:
load factor assessment, damage detection and implementation of Rousselier-UMAT-XFEM
(RuX) model solution. The results indicate the maximum stress concentration occurs at the
bottom-root part of the skin. The void volume fraction and the crack grow as the load factor
increases to the ultimate load factor. A comparison with the literature is shown in some details. |
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