Workshop on Metamaterial and Metasandwich for Energy Harvesting and Vibration Control

Workshop Schedule

Workshop Speakers

- Prof. Sondipon Adhikari (Swansea University, UK)

• Lecture 1: Introduction to metamaterials and structural mechanics of cellular metamaterials
• Lecture 2: Inhomogeneous cellular metamaterials
• Lecture 3: Dynamic homogenisation of metamaterials

- Prof. Tanmoy Mukhopadhyay (IIT Kanpur, India)

• Title : Programmable mechanical property modulation in origami metamaterials

  Abstract - This lecture will introduce the concept of origami-based mechanical metamaterials for programmable stiffness and shape modulation. We would uncover an unusual behaviour of metamaterials, which would allow the capability of achieving programmable near-zero stiffness, moderate stiffness and substantially high stiffness in a single configuration. Along with stiffness modulation, we would show how it is possible to develop metamaterials with deformation dependent spatially varying mixed-mode Poisson’s ratios, despite having a uniform initial structural configuration. The spatial profile of such metamaterials can be modulated as a function of the applied far-field global force, and the configuration and assembly of the origami bases. This creates a new possibility of developing a distant actuation feature in the metamaterial enabling us to achieve controlled local actuation. The fundamental programmable features of the origami metamaterials unraveled in this lecture can find a wide range of applications in soft robotics, aerospace, biomedical devices and various other advanced physical systems.

- Prof. Arnab Banerjee (IIT Delhi, India)

• Title : Wave propagation in metamaterials

  Abstract - Wave propagation through the periodic medium attracts the attention of the researcher due to its versatile applications in waveguiding, passive vibration isolation, etc. Different types of beam cross-section, alteration of geometry in a periodic manner gives birth to the attenuation bandgaps. The constitutive transfer and dynamic stiffness matrix of the unit cell govern the wave propagation. First, we will focus on the development of a dynamic stiffness matrix or spectral element matrix from the governing constitutive equation of motion. Interconversion between the spectral element and transfer matrix will be discussed. Some illustrative wave propagation problem will be discussed in more details for beams having not regular cross-section f llowed by the future application of it.

- Prof. Bishakh Bhattacharya (IIT Kanpur, India)

• Title : Smart material inspired metamaterials
  • Lecture 1: Fundamentals of piezoelectric actuation
  • Lecture 2: Application of smart material for meta sandwich and metamaterial
  • Lecture 3: Metamaterial for energy harvesting

For any query, please contact

• Amanpreet Singh (amangill@iitk.ac.in)
• Ankur Dwivedi (ankurdwi@iitk.ac.in )
• Vivek Gupta (vivekgup@iitk.ac.in)

Image References