An isogeometric continuum shell element for modeling the nonlinear response of functionally graded material structures

N Liu, X Ren, J Lua - Composite Structures, 2020 - Elsevier
A geometrically nonlinear continuum shell element using a NURBS-based isogeometric
analysis (IGA) approach is presented for the analysis of functionally graded material (FGM) …

Feature-preserving rational Bézier triangles for isogeometric analysis of higher-order gradient damage models

N Liu, AE Jeffers - Computer Methods in Applied Mechanics and …, 2019 - Elsevier
The computational approach of modeling smeared damage with quadrilateral elements in
isogeometric analysis (eg, using NURBS or T-splines) has limitations in scenarios where …

Blended isogeometric Kirchhoff–Love and continuum shells

N Liu, EL Johnson, MR Rajanna, J Lua, N Phan… - Computer Methods in …, 2021 - Elsevier
The computational modeling of thin-walled structures based on isogeometric analysis (IGA),
non-uniform rational B-splines (NURBS), and Kirchhoff–Love (KL) shell formulations has …

A mixed isogeometric analysis and control volume approach for heat transfer analysis of nonuniformly heated plates

N Liu, PA Beata, AE Jeffers - Numerical Heat Transfer, Part B …, 2019 - Taylor & Francis
A framework for conducting heat transfer analysis of nonuniformly heated plates using
isogeometric analysis (IGA) is proposed. The modeling approach represents a method that …

A large deformation isogeometric continuum shell formulation incorporating finite strain elastoplasticity

N Liu, MC Hsu, J Lua, N Phan - Computational Mechanics, 2022 - Springer
An isogeometric large-deformation continuum shell formulation incorporating finite strain
elastoplasticity is presented in this work. The proposed method is based on the multiplicative …

Isogeometric blended shells for dynamic analysis: simulating aircraft takeoff and the resulting fatigue damage on the horizontal stabilizer

N Liu, MR Rajanna, EL Johnson, J Lua, N Phan… - Computational …, 2022 - Springer
Aircraft horizontal stabilizers are prone to fatigue damage induced by the flow separation
from aircraft wings and the subsequent impingement on the stabilizer structure in its wake …

Buffet-induced structural response prediction of aircraft horizontal stabilizers based on immersogeometric analysis and an isogeometric blended shell approach

N Liu, J Lua, MR Rajanna, E Johnson… - AIAA SCITECH 2022 …, 2022 - arc.aiaa.org
View Video Presentation: https://doi. org/10.2514/6.2022-0852. vid Aircraft horizontal
stabilizers are prone to fatigue damage induced by the flow separation from aircraft wings …

Coupling bem and the local point interpolation for the solution of anisotropic elastic nonlinear, multi-physics and multi-fields problems

RK Njiwa, G Pierson, A Voignier - International Journal of …, 2020 - World Scientific
The pure boundary element method (BEM) is effective for the solution of a large class of
problems. The main appeal of this BEM (reduction of the problem dimension by one) is …

Half-Plane Boundary Element Fundamental Solutions and Body Force

B Ansari, A Firoozfar - AUT Journal of Civil Engineering, 2021 - ajce.aut.ac.ir
Two-dimensional half-plane fundamental solutions have been developed by different
researchers in the fields of electronics, mechanics, and geotechnics. However, for …