Mechanics of Soft Materials Lab

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About The Lab

Soft materials are capable of large deformation, and have mechanical properties comparable to those of biological tissues. Recent developments in soft materials are enabling the rise of soft robotics, stretchable electronics, and biomechatronics. These new fields are profoundly altering the interactions between human beings and machines. Through the integration of analytical modeling, computational simulation and experiment, our group aims to investigate the fundamental physics and mechanics of soft materials, such as their constitutive relation, nonlinear deformation, instability, and fracture. On the other hand, our group strives to develop new materials, structures, and functions for soft robotics and stretchable electronics.

Recent News

  • 11/2021 Prof Jin delivered an invited talk in 2021 International Liquid Crystal Elastomers Conference.

  • 08/2021 Prof Jin delivered an invited talk in ACS Fall 2021 National Meeting & Exposition.

  • 08/2021 Our undergraduate group members Scott Cao, Damian Meza, Mateen Rabbani and Dehao Lin have attended the Summer Undergraduate Research Program (SURP) organized by Samueli School of Engineering at UCLA, and successfully presented their work!

  • 07/2021 Congratulate Boliang for winning the Summer Mentored Research Fellowship (SMRF)!

  • 07/2021 Prof Jin has won NSF CAREER award, which is the agency’s highest honor for faculty members in the early stages of their teaching and research careers. https://samueli.ucla.edu/ucla-mechanical-engineer-receives-nsf-career-award/

  • 06/2021 Welcome our new undergraduate group members Scott Cao, Damian Meza, Mateen Rabbani and Dehao Lin.

  • 06/2021 Congratulate Yuzhen for passing the defense!

  • 06/2021 Our group is highlighted in an article in UCLA Magazine. https://newsroom.ucla.edu/magazine/soft-robots-engineering

  • 05/2021 Prof Jin delivered an invited talk in IUTAM symposium Mechanics of Smart and Tough Gels.

  • 04/2021 Prof Jin delivered invited talks at University of Massachusetts Amherst and University of Connecticut.

Publication Highlights

  • 'Harnessing friction in interwoven structures for high-capacity reusable energy-absorbing metamaterials' published in Advanced Science

  • 'Photodriven self-excited hydrogel oscillators' published in Physical Review Applied

  • 'Electrolyte modulators towards polarization mitigated lithium-ion batteries for sustainable electric transportation' published in Advanced Materials

  • 'A stretchable and strain-unperturbed pressure sensor for motion-interference-free tactile monitoring on skins' published in Science Advances

  • 'Effect of imperfections on pseudo-bistability of viscoelastic domes' published in Extreme Mechanics Letters

  • 'Unusual stress and strain concentration behaviors at the circular hole of a large monodomain liquid crystal elastomer sheet' published in Journal of the Mechanics and Physics of Solids

  • 'Direct probing the fracture behavior of ultrathin polymeric films' published in ACS Polymer Au

  • 'Reusable energy-absorbing architected materials harnessing snapping-back buckling of wide hyperelastic columns' published in Advanced Functional Materials

  • ‘From continuous to snapping-back buckling: a post-buckling analysis for hyperelastic columns under axial compression’ published in International Journal of Non-Linear Mechanics

  • ‘Hydrolysis-induced large swelling of polyacrylamide hydrogels’ published in Soft Matter

  • ‘Blueprinting Photothermal Shape-Morphing of Liquid Crystal Elastomers’ published in Advanced Materials

  • ‘Dynamic Ag-N bond enhanced stretchable conductor for transparent and self-healing electronic skin’ published in ACS Applied Materials & Interfaces

  • ‘Snapping-back buckling of wide hyperelastic columns’, published in Extreme Mechanics Letters

  • ‘Soft phototactic swimmer based on self-sustained hydrogel oscillator’published in Science Robotics