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 -