Details
Original language | English |
---|---|
Article number | 103696 |
Number of pages | 22 |
Journal | Finite Elements in Analysis and Design |
Volume | 202 |
Early online date | 8 Jan 2022 |
Publication status | Published - 1 May 2022 |
Externally published | Yes |
Abstract
In this work, a thermodynamically consistent framework for coupled thermo-mechanical simulations for thin-walled structures with the presence of cohesive interfaces is proposed. Regarding the shell formulation, a solid shell parametrization scheme is adopted, which is equipped with the mixed Enhanced Assumed Strain (EAS) method to alleviate Poisson and volumetric locking pathologies. It is further combined with the Assumed Natural Strain (ANS) method leading to a locking-free thermo-mechanical solid shell element using a fully-integrated interpolation scheme. In order to model thermo-mechanical decohesion events in thin-walled structures with imperfect internal boundaries, an interface finite element for geometrical nonlinearities is herein extended to account for the thermal field and thermo-elastic coupling. The computational implementation of the current finite element formulation has been performed as a user element in ABAQUS via user-defined capabilities. The predictability of the model is demonstrated using several representative examples.
Keywords
- A. Solid shell, B. Cohesive zone model, C. Finite element methods, D. Non-linear thermo-elasticity, E. Finite elasticity
ASJC Scopus subject areas
- Mathematics(all)
- Analysis
- Engineering(all)
- General Engineering
- Computer Science(all)
- Computer Graphics and Computer-Aided Design
- Mathematics(all)
- Applied Mathematics
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In: Finite Elements in Analysis and Design, Vol. 202, 103696, 01.05.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Non-linear thermoelastic analysis of thin-walled structures with cohesive-like interfaces relying on the solid shell concept
AU - Kumar, Pavan Kumar Asur Vijaya
AU - Dean, Aamir
AU - Sahraee, Shahab
AU - Reinoso, Jose
AU - Paggi, Marco
N1 - Funding Information: MP would like to acknowledge the financial support of the Italian Ministry of Education , University and Research to the Research Project of National Interest (PRIN “XFAST-SIMS: Extra fast and accurate simulation of complex structural systems” (Grant Agreement no. 20173C478N ). Funding Information: AD, JR are grateful to the Consejería de Economía y Conocimiento of the Junta de Andalucía (Spain) for financial support under the contract US-1265577-Programa Operativo FEDER Andalucía 2014–2020, Consejería de Economía, Conocimiento, Empresas y Universidad of the Junta de Andalucía (Spain) contract P20-00595, and the Spanish Ministerio de Ciencia, Innovación y Universidades the under the grant PID2019-109723GB-I00. MP would like to acknowledge the financial support of the Italian Ministry of Education, University and Research to the Research Project of National Interest (PRIN “XFAST-SIMS: Extra fast and accurate simulation of complex structural systems” (Grant Agreement no. 20173C478N). This study was funded by the Consejería de Economía y Conocimiento of the Junta de Andalucía (Spain) (grant number US-1265577) and by the Italian Ministry of Education, University and Research to the Research Project of National Interest (Italy) (grant number CUP: D68D19001260001). Funding Information: This study was funded by the Consejería de Economía y Conocimiento of the Junta de Andalucía (Spain) (grant number US-1265577 ) and by the Italian Ministry of Education, University and Research to the Research Project of National Interest (Italy) (grant number CUP: D68D19001260001 ). Funding Information: AD, JR are grateful to the Consejería de Economía y Conocimiento of the Junta de Andalucía (Spain) for financial support under the contract US-1265577 -Programa Operativo FEDER Andalucía 2014–2020, Consejería de Economía, Conocimiento, Empresas y Universidad of the Junta de Andalucía (Spain) contract P20-00595 , and the Spanish Ministerio de Ciencia, Innovación y Universidades the under the grant PID2019-109723GB-I00 .
PY - 2022/5/1
Y1 - 2022/5/1
N2 - In this work, a thermodynamically consistent framework for coupled thermo-mechanical simulations for thin-walled structures with the presence of cohesive interfaces is proposed. Regarding the shell formulation, a solid shell parametrization scheme is adopted, which is equipped with the mixed Enhanced Assumed Strain (EAS) method to alleviate Poisson and volumetric locking pathologies. It is further combined with the Assumed Natural Strain (ANS) method leading to a locking-free thermo-mechanical solid shell element using a fully-integrated interpolation scheme. In order to model thermo-mechanical decohesion events in thin-walled structures with imperfect internal boundaries, an interface finite element for geometrical nonlinearities is herein extended to account for the thermal field and thermo-elastic coupling. The computational implementation of the current finite element formulation has been performed as a user element in ABAQUS via user-defined capabilities. The predictability of the model is demonstrated using several representative examples.
AB - In this work, a thermodynamically consistent framework for coupled thermo-mechanical simulations for thin-walled structures with the presence of cohesive interfaces is proposed. Regarding the shell formulation, a solid shell parametrization scheme is adopted, which is equipped with the mixed Enhanced Assumed Strain (EAS) method to alleviate Poisson and volumetric locking pathologies. It is further combined with the Assumed Natural Strain (ANS) method leading to a locking-free thermo-mechanical solid shell element using a fully-integrated interpolation scheme. In order to model thermo-mechanical decohesion events in thin-walled structures with imperfect internal boundaries, an interface finite element for geometrical nonlinearities is herein extended to account for the thermal field and thermo-elastic coupling. The computational implementation of the current finite element formulation has been performed as a user element in ABAQUS via user-defined capabilities. The predictability of the model is demonstrated using several representative examples.
KW - A. Solid shell
KW - B. Cohesive zone model
KW - C. Finite element methods
KW - D. Non-linear thermo-elasticity
KW - E. Finite elasticity
UR - http://www.scopus.com/inward/record.url?scp=85122299861&partnerID=8YFLogxK
U2 - 10.1016/j.finel.2021.103696
DO - 10.1016/j.finel.2021.103696
M3 - Article
AN - SCOPUS:85122299861
VL - 202
JO - Finite Elements in Analysis and Design
JF - Finite Elements in Analysis and Design
SN - 0168-874X
M1 - 103696
ER -