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Improving the energy harvesting performance of clamped flexible plates using vortex shedding behind bluff bodies: A computational study (2024)
Journal Article
Wang, X., Guo, X., Mei, Y., & Kadapa, C. (2024). Improving the energy harvesting performance of clamped flexible plates using vortex shedding behind bluff bodies: A computational study. Physics of Fluids, 36(9), Article 097148. https://doi.org/10.1063/5.0223719

This study assesses flow-induced vibrations of clamped flexible plates with the objective of improving their energy harvesting performance. Towards this, a rectangular bluff body is placed between the two clamped flexible plates to harness the vortic... Read More about Improving the energy harvesting performance of clamped flexible plates using vortex shedding behind bluff bodies: A computational study.

Mixed displacement–pressure formulations and suitable finite elements for multimaterial problems with compressible and incompressible models (2024)
Journal Article
Kadapa, C. (2024). Mixed displacement–pressure formulations and suitable finite elements for multimaterial problems with compressible and incompressible models. Computer Methods in Applied Mechanics and Engineering, 432(Part A), Article 117354. https://doi.org/10.1016/j.cma.2024.117354

Multimaterial problems in linear and nonlinear elasticity are some of the least explored using mixed finite element formulations with higher-order elements. The fundamental issue in adapting the mixed displacement–pressure formulations with linear an... Read More about Mixed displacement–pressure formulations and suitable finite elements for multimaterial problems with compressible and incompressible models.

Effect of pulsating flow on flow-induced vibrations of circular and square cylinders in the laminar regime (2024)
Journal Article
Wang, X., Zhang, Z., Shi, K., Zhu, X., Guo, X., Mei, Y., & Kadapa, C. (2024). Effect of pulsating flow on flow-induced vibrations of circular and square cylinders in the laminar regime. Ocean Engineering, 301, Article 117609. https://doi.org/10.1016/j.oceaneng.2024.117609

Through fluid-structure interaction simulations, this study assesses the dynamic response characteristics of elastically mounted circular and square cylinders subjected to pulsating inflow conditions, providing valuable insights int... Read More about Effect of pulsating flow on flow-induced vibrations of circular and square cylinders in the laminar regime.

A numerical framework for the simulation of coupled electromechanical growth (2023)
Journal Article
Li, Z., Kadapa, C., Hossain, M., & Wang, J. (2023). A numerical framework for the simulation of coupled electromechanical growth. Computer Methods in Applied Mechanics and Engineering, 414, Article 116128. https://doi.org/10.1016/j.cma.2023.116128

Electro-mechanical response exists in growing materials such as biological tissues and hydrogels, influencing the growth process, pattern formation and geometry remodelling. To gain a better understanding of the mechanism of the coupled effects of gr... Read More about A numerical framework for the simulation of coupled electromechanical growth.

Advanced simulation methodologies for smart soft multifunctional polymeric composites (2023)
Presentation / Conference Contribution
Kadapa, C., & Hossain, M. (2023, May). Advanced simulation methodologies for smart soft multifunctional polymeric composites. Poster presented at RubberCon 2023, Edinburgh

Smart multifunctional polymeric composites such as magnetoactive polymers, electroac-tive polymers and photopolymers are increasingly being explored for various applications in soft robotics, energy harvesting, flexible electronic devices, precision... Read More about Advanced simulation methodologies for smart soft multifunctional polymeric composites.

A general theoretical scheme for shape-programming of incompressible hyperelastic shells through differential growth (2023)
Journal Article
Li, Z., Wang, J., Hossain, M., & Kadapa, C. (2023). A general theoretical scheme for shape-programming of incompressible hyperelastic shells through differential growth. International Journal of Solids and Structures, 255-256, Article 112128. https://doi.org/10.1016/j.ijsolstr.2023.112128

In this paper, we study the problem of shape-programming of incompressible hyperelastic shells through differential growth. The aim of the current work is to determine one of the possible growth tensors (or growth functions) that can produce the defo... Read More about A general theoretical scheme for shape-programming of incompressible hyperelastic shells through differential growth.

A comprehensive assessment of accuracy of adaptive integration of cut cells for laminar fluid-structure interaction problems (2022)
Journal Article
Kadapa, C., Wang, X., & Mei, Y. (2022). A comprehensive assessment of accuracy of adaptive integration of cut cells for laminar fluid-structure interaction problems. Computers and Mathematics with Applications, 122, 1-18. https://doi.org/10.1016/j.camwa.2022.07.006

Finite element methods based on cut-cells are becoming increasingly popular because of their advantages over formulations based on body-fitted meshes for problems with moving interfaces. In such methods, the cells (or elements) which are cut by the i... Read More about A comprehensive assessment of accuracy of adaptive integration of cut cells for laminar fluid-structure interaction problems.

A short review of vapour droplet dispersion models used in CFD to study the airborne spread of COVID19 (2022)
Journal Article
Mehade Hussain, S., Goel, S., Kadapa, C., & Aristodemou, E. (2022). A short review of vapour droplet dispersion models used in CFD to study the airborne spread of COVID19. Materials Today: Proceedings, 64(3), 1349-1356. https://doi.org/10.1016/j.matpr.2022.03.724

The use of computational fluid dynamics (CFD) to simulate the spread of COVID19 and many other airborne diseases, especially in an indoor environment needs accurate understanding of dispersion models. Modelling the transport/dispersion of vapour drop... Read More about A short review of vapour droplet dispersion models used in CFD to study the airborne spread of COVID19.

A unified numerical approach for soft to hard magneto-viscoelastically coupled polymers (2022)
Journal Article
Kadapa, C., & Hossain, M. (2022). A unified numerical approach for soft to hard magneto-viscoelastically coupled polymers. Mechanics of Materials, 166, Article 104207. https://doi.org/10.1016/j.mechmat.2021.104207

The last decade has witnessed the emergence of magneto-active polymers (MAPs) as one of the most advanced multi-functional soft composites. Depending on the magnetisation mechanisms and responsive behaviour, MAPs are mainly classified as hard magneti... Read More about A unified numerical approach for soft to hard magneto-viscoelastically coupled polymers.

Multiscale Modeling for the Statics of Nanostructures (2021)
Book Chapter
Hoang, K., & Kadapa, C. (2021). Multiscale Modeling for the Statics of Nanostructures. In S. Chakraverty (Ed.), Nano Scaled Structural Problems: Static and Dynamic Behaviors (1-38). AIP Publishing. https://doi.org/10.1063/9780735422865_002

Characterization of mechanical properties of materials is essential toward understanding their deformation behavior when subjected to external forces. For a complete understanding of the behavior of materials from the interaction of atoms at the nano... Read More about Multiscale Modeling for the Statics of Nanostructures.

Analytical study on growth-induced axisymmetric deformations and shape-control of circular hyperelastic plates (2021)
Journal Article
Li, Z., Wang, Q., Du, P., Kadapa, C., Hossain, M., & Wang, J. (2022). Analytical study on growth-induced axisymmetric deformations and shape-control of circular hyperelastic plates. International Journal of Engineering Science, 170, Article 103594. https://doi.org/10.1016/j.ijengsci.2021.103594

Growth of soft material plates is commonly observed in nature. However, the relations between growth fields and shape changes of the plate samples remain poorly understood. The current work aims to derive some analytical results for the growth-induce... Read More about Analytical study on growth-induced axisymmetric deformations and shape-control of circular hyperelastic plates.

A Unified Simulation Framework for Fluid–Structure–Control Interaction Problems with Rigid and Flexible Structures (2021)
Journal Article
Kadapa, C. (2022). A Unified Simulation Framework for Fluid–Structure–Control Interaction Problems with Rigid and Flexible Structures. International Journal of Computational Methods, 19(01), Article 2150052. https://doi.org/10.1142/s0219876221500523

Vortex-induced vibrations are often unwanted as they can lead to catastrophic failure of the associated structures, warranting countermeasures to mitigate or suppress these vibrations. Due to the nature of nonlinearities in fluid–structure interactio... Read More about A Unified Simulation Framework for Fluid–Structure–Control Interaction Problems with Rigid and Flexible Structures.

A novel semi-implicit scheme for elastodynamics and wave propagation in nearly and truly incompressible solids (2021)
Journal Article
Kadapa, C. (2021). A novel semi-implicit scheme for elastodynamics and wave propagation in nearly and truly incompressible solids. Acta mechanica, 232(6), 2135-2163. https://doi.org/10.1007/s00707-020-02883-5

This paper presents a novel semi-implicit scheme for elastodynamics and wave propagation problems in nearly and truly incompressible material models. The proposed methodology is based on the efficient computation of the Schur complement for the mixed... Read More about A novel semi-implicit scheme for elastodynamics and wave propagation in nearly and truly incompressible solids.

A simple extrapolated predictor for overcoming the starting and tracking issues in the arc-length method for nonlinear structural mechanics (2021)
Journal Article
Kadapa, C. (2021). A simple extrapolated predictor for overcoming the starting and tracking issues in the arc-length method for nonlinear structural mechanics. Engineering Structures, 234, Article 111755. https://doi.org/10.1016/j.engstruct.2020.111755

This paper presents a simplified implementation of the arc-length method for computing the equilibrium paths of nonlinear structural mechanics problems using the finite element method. In the proposed technique, the predictor is computed by extrapola... Read More about A simple extrapolated predictor for overcoming the starting and tracking issues in the arc-length method for nonlinear structural mechanics.

On the advantages of mixed formulation and higher-order elements for computational morphoelasticity (2020)
Journal Article
Kadapa, C., Li, Z., Hossain, M., & Wang, J. (2021). On the advantages of mixed formulation and higher-order elements for computational morphoelasticity. Journal of the Mechanics and Physics of Solids, 148, Article 104289. https://doi.org/10.1016/j.jmps.2020.104289

In this paper, we present a mixed displacement–pressure finite element formulation that can successively model compressible as well as truly incompressible behaviour in growth-induced deformations significantly observed in soft materials. Inf–sup sta... Read More about On the advantages of mixed formulation and higher-order elements for computational morphoelasticity.

A robust and computationally efficient finite element framework for coupled electromechanics (2020)
Journal Article
Kadapa, C., & Hossain, M. (2020). A robust and computationally efficient finite element framework for coupled electromechanics. Computer Methods in Applied Mechanics and Engineering, 372, Article 113443. https://doi.org/10.1016/j.cma.2020.113443

Electro-active polymers (EAPs) are increasingly becoming popular materials for actuators, sensors, and energy harvesters. To simulate the complex behaviour of actuators under coupled loads, particularly in the realm of soft robotics, biomedical engin... Read More about A robust and computationally efficient finite element framework for coupled electromechanics.

A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow (2020)
Journal Article
Kadapa, C. (2020). A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow. Ocean Engineering, 217, Article 107940. https://doi.org/10.1016/j.oceaneng.2020.107940

This paper presents a staggered scheme with second-order temporal accuracy for fluid–structure interaction problems involving ultra-lightweight rigid bodies. The staggered scheme is based on the Dirichlet–Neumann coupling and is non-intrusive. First,... Read More about A second-order accurate non-intrusive staggered scheme for the interaction of ultra-lightweight rigid bodies with fluid flow.

New iterative and staggered solution schemes for incompressible fluid‐structure interaction based on Dirichlet‐Neumann coupling (2020)
Journal Article
Dettmer, S. G., Lovrić, A., Kadapa, C., & Perić, D. (2021). New iterative and staggered solution schemes for incompressible fluid‐structure interaction based on Dirichlet‐Neumann coupling. International Journal for Numerical Methods in Engineering, 122(19), 5204-5235. https://doi.org/10.1002/nme.6494

In the presence of strong added mass effects, partitioned solution strategies for incompressible fluid-structure interaction are known to lack robustness and computational efficiency. A number of strategies have been proposed to address this challeng... Read More about New iterative and staggered solution schemes for incompressible fluid‐structure interaction based on Dirichlet‐Neumann coupling.

Accurate iteration-free mixed-stabilised formulation for laminar incompressible Navier–Stokes: Applications to fluid–structure interaction (2020)
Journal Article
Kadapa, C., Dettmer, W. G., & Perić, D. (2020). Accurate iteration-free mixed-stabilised formulation for laminar incompressible Navier–Stokes: Applications to fluid–structure interaction. Journal of Fluids and Structures, 97, Article 103077. https://doi.org/10.1016/j.jfluidstructs.2020.103077

Stabilised mixed velocity–pressure formulations are one of the widely-used finite element schemes for computing the numerical solutions of laminar incompressible Navier–Stokes. In these formulations, the Newton–Raphson scheme is employed to solve the... Read More about Accurate iteration-free mixed-stabilised formulation for laminar incompressible Navier–Stokes: Applications to fluid–structure interaction.