Synergistic Energy Absorption Mechanisms of Architected Liquid Crystal Elastomers

  title={Synergistic Energy Absorption Mechanisms of Architected Liquid Crystal Elastomers},
  author={Seung‐Yeol Jeon and Beijun Shen and Nicholas A Traugutt and Zeyu Zhu and Lichen Fang and Christopher M Yakacki and Thao Duc Nguyen and Sung Hoon Kang},
  journal={Advanced Materials},
A unique rate‐dependent energy absorption behavior of liquid crystal elastomer (LCE)‐based architected materials is reported. The architected materials consist of repeating unit cells of bistable tilted LCE beams sandwiched between stiff supports. The viscoelastic behavior of the LCE causes the energy absorption to increase with strain rate according to a power‐law relationship, which can be modulated by changing the degree of mesogen alignment and the loading direction relative to the director… 
Group action Markov chain Monte Carlo for accelerated sampling of energy landscapes with discrete symmetries and energy barriers
A new Monte Carlo method, group action Markov chain Monte Carlo (GA-MCMC), which augments more conventional trial moves with the application of a group action from a well-chosen generating set of the discrete symmetry group, and is shown to consistently outperform the considered alternatives, even when the symmetry of the potential energy function is broken.


Liquid Crystal Elastomers
PREFACE Liquid crystals are unusual materials. As their name suggests, they inhabit the grey area between liquids and solids. They have long range orientational order, typically of the unique axes of
Nonlinear Solid Mechanics: A Continuum Approach for Engineering Science
Introduction to Vectors and Tensors. Kinematics. The Concept of Stress. Balance Principles. Some Aspects of Objectivity. Hyperelastic Materials. Thermodynamics of Materials. Variational Principles.
In Palfreyman & Tapper (2014) ‘Reshaping the University: The Rise of the Regulated Market in Higher Education’ (Oxford University Press) we have tried to explain how English HE has reached the
Nonlinear Solid Mechanics: A Continuum Approach for Engineering, Wiley
  • 2000
A movie of a high strain rate impact test (impact speed = 10 m/s)
Energy absorption density of 2×2, 2×4 and 2×8 stacked LCE structures with graded beam thickness plotted as a function of strain rates
Movie S3: Simulation movies comparing uniform vs. graded cases of stacked structures
  • 1953, 21,