File Download
There are no files associated with this item.
Supplementary
-
Citations:
- Appears in Collections:
Conference Paper: Analyzing the mechanical response of bio-polymer networks via a combined finite element-Langevin dynamics (FEM-LD) approach
Title | Analyzing the mechanical response of bio-polymer networks via a combined finite element-Langevin dynamics (FEM-LD) approach |
---|---|
Authors | |
Issue Date | 2013 |
Citation | The SES 50th Annual Technical Meeting and ASME-AMD Annual Summer Meeting (SES 2013), Providence, RI., 28-31 July 2013. How to Cite? |
Abstract | A Langevin dynamics based formulation is proposed to describe the shape fluctuations of biopolymer filaments. We derive a set of stochastic partial differential equations (SPDEs) to describe the temporal evolution of the shape of semiflexible filaments and show that the solutions of these equations reduce to predictions from classical modal analysis. A finite element formulation to solve these SPDEs is also developed where, besides entropy, the finite deformation of the filaments has been taken into account. The validity of the proposed finite element-Langevin dynamics (FEM-LD) approach is verified by comparing the simulation results with a variety of theoretical predictions. The method is then applied to study the mechanical behavior of randomly cross-linked F-actin networks. We find that as deformation progresses, the response of such network undergoes transitions from being entropy dominated to being governed by filament bending and then, eventually, to being dictated by filament stretching. The levels of macroscopic stress at which these transitions take place were found to be around 1 and 10 percent, respectively, of the initial bulk modulus of the network, in agreement with recent experimental observations. |
Description | Session - Awards Symposia: Prager Medal Symposium in honor of George Weng: Micromechanics, Composites and Multifunctional Materials |
Persistent Identifier | http://hdl.handle.net/10722/229824 |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lin, Y | - |
dc.contributor.author | Wei, X | - |
dc.contributor.author | Qian, J | - |
dc.contributor.author | Sze, KY | - |
dc.contributor.author | Shenoy, VB | - |
dc.date.accessioned | 2016-08-23T14:13:28Z | - |
dc.date.available | 2016-08-23T14:13:28Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | The SES 50th Annual Technical Meeting and ASME-AMD Annual Summer Meeting (SES 2013), Providence, RI., 28-31 July 2013. | - |
dc.identifier.uri | http://hdl.handle.net/10722/229824 | - |
dc.description | Session - Awards Symposia: Prager Medal Symposium in honor of George Weng: Micromechanics, Composites and Multifunctional Materials | - |
dc.description.abstract | A Langevin dynamics based formulation is proposed to describe the shape fluctuations of biopolymer filaments. We derive a set of stochastic partial differential equations (SPDEs) to describe the temporal evolution of the shape of semiflexible filaments and show that the solutions of these equations reduce to predictions from classical modal analysis. A finite element formulation to solve these SPDEs is also developed where, besides entropy, the finite deformation of the filaments has been taken into account. The validity of the proposed finite element-Langevin dynamics (FEM-LD) approach is verified by comparing the simulation results with a variety of theoretical predictions. The method is then applied to study the mechanical behavior of randomly cross-linked F-actin networks. We find that as deformation progresses, the response of such network undergoes transitions from being entropy dominated to being governed by filament bending and then, eventually, to being dictated by filament stretching. The levels of macroscopic stress at which these transitions take place were found to be around 1 and 10 percent, respectively, of the initial bulk modulus of the network, in agreement with recent experimental observations. | - |
dc.language | eng | - |
dc.relation.ispartof | SES Annual Technical Meeting and ASME-AMD Annual Summer Meeting, SES 2013 | - |
dc.title | Analyzing the mechanical response of bio-polymer networks via a combined finite element-Langevin dynamics (FEM-LD) approach | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Lin, Y: ylin@hkucc.hku.hk | - |
dc.identifier.email | Sze, KY: kysze@hku.hk | - |
dc.identifier.authority | Lin, Y=rp00080 | - |
dc.identifier.authority | Sze, KY=rp00171 | - |
dc.identifier.hkuros | 261888 | - |