Nonlinear dynamic modeling of bistable variable stiffness composite laminates

PM Anilkumar, S Scheffler, A Haldar, M Brod… - Journal of Sound and …, 2023 - Elsevier
The room-temperature equilibrium stable states of cured unsymmetric composite laminates
have been the focus of recent research, with a particular emphasis on shape morphing …

A Review of the Dynamic Behavior of Thermally Induced Bistable Configurations of Unsymmetrical Composite Laminates and their Applications

D Bashir, PM Anilkumar, S Scheffler, A Haldar… - … Methods in Engineering, 2024 - Springer
Multistable structures are extensively researched due to their adaptability across various
operational conditions. A basic class of these multistable structures can be bistable …

Morphing of bistable variable stiffness composites using distributed MFC actuators

PM Anilkumar, A Haldar, S Scheffler, EL Jansen… - Composite …, 2022 - Elsevier
The use of piezoelectrically controlled bistable composite laminates for morphing
applications has received increased attention in recent years. So far, most existing …

A seven-parameter high-order finite element model for multi-stable analysis of variable stiffness laminated shells

T He, W Huang, Z Kuang, Q Huang, R Hou… - Thin-Walled …, 2023 - Elsevier
Variable angle fiber composites provide large design space for multi-stable structures.
However, they require reliable numerical models to accurately predict their mechanical …

Design of mechanical metamaterial for energy absorption using a beam with a variable cross-section

Z Wu, B Zhu, R Wang, X Zhang - Mechanism and Machine Theory, 2022 - Elsevier
In this study, the energy-dissipating characteristic of a cell of a mechanical metamaterial is
developed based on a beam with a variable cross-section. An optimization model is …

Investigations on the multistability of series-connected unsymmetric laminates

AP Kumar, PM Anilkumar, A Haldar, S Scheffler… - … Science and Technology, 2022 - Elsevier
Multistable composite shells have received great attention in shape-changing morphing
applications due to their ability to attain more than one stable shape when cooled down from …

Intrawell and interwell oscillations for bi-stable cross-ply laminates actuated by MFC under oscillating impulse voltages

YX Hao, CP Bai, W Zhang, LT Liu, SW Yang - International Journal of Non …, 2022 - Elsevier
The snap-through is a typical geometric nonlinear problem for the bi-stable laminate
structures. Using the Macro Fiber Composite (MFC) actuators to actuate the snap-through …

Investigations on the dynamic snap-through of MFC bonded self-resetting bistable laminates

PM Anilkumar, S Scheffler, A Haldar, EL Jansen… - Composite …, 2024 - Elsevier
Unsymmetric composite laminates having two stable equilibrium configurations have been
studied extensively in the recent past due to their potential applications in morphing …

The dynamic regimes of the unsymmetric bistable laminate

T Dong, W Zhang, M Dong - Mechanics of Advanced Materials and …, 2024 - Taylor & Francis
A dynamic model built theoretically and simulated numerically for an unsymmetric bistable
laminate is elucidated, elaborating the dynamic regimes. Peak-to-peak amplitude diagrams …

Tailoring bistability in unsymmetrical laminates using an additional composite strip

AP Kumar, PM Anilkumar, A Haldar, S Scheffler… - Thin-Walled …, 2021 - Elsevier
Unsymmetric laminates exhibiting two stable equilibrium shapes due to the induced thermal
residual stresses have been extensively explored in recent years. The potential energy wells …