Li Sun

ORCID: 0000-0001-9011-1844
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About
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Research Areas
  • Advanced Fiber Optic Sensors
  • Polymer composites and self-healing
  • Photonic and Optical Devices
  • Structural Behavior of Reinforced Concrete
  • Shape Memory Alloy Transformations
  • Seismic Performance and Analysis
  • Geotechnical Engineering and Underground Structures
  • Advanced Materials and Mechanics
  • Structural Response to Dynamic Loads
  • Structural Health Monitoring Techniques
  • Advanced Sensor and Energy Harvesting Materials
  • Concrete Corrosion and Durability
  • Vibration and Dynamic Analysis
  • Fluid Dynamics Simulations and Interactions
  • Vibration Control and Rheological Fluids
  • Marine Sponges and Natural Products
  • Rock Mechanics and Modeling
  • Geomechanics and Mining Engineering
  • Corrosion Behavior and Inhibition
  • Photonic Crystal and Fiber Optics
  • Innovative concrete reinforcement materials
  • Simulation and Modeling Applications
  • Industrial Technology and Control Systems
  • Structural Engineering and Vibration Analysis
  • Photochromic and Fluorescence Chemistry

Shandong Women’s University
2019-2025

Shenyang Jianzhu University
2015-2024

Guiyang Medical University
2022

Guizhou University
2022

Guizhou Provincial People's Hospital
2022

HBIS (China)
2022

Jiangsu University of Science and Technology
2022

Dalian University of Technology
2007-2021

Qingdao University of Technology
2020

National University of Malaysia
2019

Shear thickening fluids (STFs) are a new type of nanosuspension, which formed by dispersing micro and nanoparticles in dispersant. STFs easily deformed under the action low shear rate. However, they instantly transform into hard solid-like state at high After removal impact force, revert to their original liquid state. During this process, absorb significant amount energy. Hence, can be employed as buffer for vibration reduction. In study, comprehensive review existing literature on is...

10.1016/j.matdes.2022.110570 article EN cc-by-nc-nd Materials & Design 2022-03-21

As recently demonstrated, after programming, thermo-responsive shape memorypolymers can exhibit the multi-shape memory effect (SME) upon heating. In addition, it is confirmed that temperature corresponding to maximum recovery stress in constrained roughly at which pre-deformation conducted, a phenomenon known as (TME). this paper, we propose framework investigate underlying mechanisms behind both effects and provide conditions for TME. According framework, achieve fully controllable...

10.1039/c0sm00236d article EN Soft Matter 2010-01-01

This research explores the seismic damage response of a frame–shear wall reinforced concrete structure exposed to progressive excitations. The shear is three-storey one-quarter-scaled structure. test was conducted by applying excitations using shaking table. experienced inelastic deformations under high that eventually caused transformation from state elastic deformation highly deformation. Damage in form plastic hinges occurred because induced dynamic instability monitored responses this...

10.1002/stc.2307 article EN cc-by Structural Control and Health Monitoring 2018-12-17

Asymmetric structures experience higher seismic damage compared with their symmetric counterparts. This is mainly attributed to the coupled torsional vibrations, which tend induce twisting in structural floors and increase shear demands corner column of flexible side (CCFE) asymmetric in-plan stiffness eccentricity. Such floor consequently leads towards concentration critical region CCFE produce relatively local deformations degradation component. Therefore, investigation such important as...

10.1080/15732479.2020.1730914 article EN Structure and Infrastructure Engineering 2020-03-09

Abstract In this article, we show that given a thermoresponsive shape memory polymer, it is possible to alter number of its properties, such as the recovery temperature, fixity ratio, maximum stress, and final stress (and even right combination some them, e.g., stress), simply by means selecting programming temperature achieve optimized performance. Some concerns for implementation in real engineering practice are also discussed. Although focus on case fixed strain programming, alternative...

10.1002/pola.24794 article EN Journal of Polymer Science Part A Polymer Chemistry 2011-06-14

Cracks of structural members caused by rebar corrosion directly influence the service life reinforced concrete structures. Therefore, it is important to monitor early evolution and take steps overcome situation. In this paper, response relationship between wavelength variation Fiber Bragg grating (FBG) sensor mass loss rate derived. The accuracy proposed theoretical model verified electricity accelerated experiment. It indicates that matches well with tested value. Moreover, in study,...

10.1142/s0219455418400011 article EN International Journal of Structural Stability and Dynamics 2017-12-28

10.1007/s11041-010-9213-x article EN Metal Science and Heat Treatment 2009-11-01

In this article, we present a brief review about polymeric shape memory materials (SMMs) and typical applications of these for functioning as actuators. A couple generic working mechanisms to enable the effect (SME) in are introduced, together with some relatively new phenomena, such multiple-SME, temperature (TME), mechano-responsive SME, etc. It is revealed that now able not only design/syntheses material, but also tailor its performance well meet requirement(s) particular application....

10.1080/02678292.2013.805832 article EN Liquid Crystals 2013-06-14

Purpose – This paper aims to present a review on utilizing shape memory technology (SMT) for active assembly/disassembly, i.e. assembly/disassembly without physically touching. Design/methodology/approach The fundamentals behind the effect (SME) in materials, particular alloys (SMAs) and polymers, which are cornerstones of SMT, introduced, together with possible approaches implement this assembly/disassembly. Example applications not only assembly/ disassembly, but also programmed...

10.1108/aa-03-2013-031 article EN Assembly Automation 2014-01-24

Abstract Due to the difference in physical and mechanical properties between optical fiber, protective layer, adhesive host material, strains measured by a fiber Bragg grating (FBG) sensor may not be actual of which impedes reliable applications FBG sensors. To overcome this problem, paper, strain transfer formula was derived using elastic analysis, shear-lag method, several reasonable assumptions taking into account temperature variations nonaxial stresses, an improvement existing study...

10.1520/jte20140388 article EN Journal of Testing and Evaluation 2015-12-02

The heating‐responsive shape‐memory effect (SME) based on melting in two thermoplastic polyurethanes (TPUs) with low melt‐flow index is experimentally investigated. It revealed that after severe deformation either tension or impression at room temperature, upon heating to the significant shape recovery achieved. underlying mechanism for (based melting) such a type of polymers without crosslinking proposed. This generic and should be applicable most index. image

10.1002/macp.201400429 article EN Macromolecular Chemistry and Physics 2014-11-05
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