An Artificial Gecko Foot Model

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Presentation transcript:

An Artificial Gecko Foot Model

In The COMSOL Multiphysics Model Library in the MEMS Module

An Artificial Gecko Foot Model Traditional structural analysis but on the micro/nano scale For pictures of a real vs synthetic gecko foot see for example: Proceedings of the National Academy of Sciences: http://www.pnas.org/content/104/26/10792/F1.large.jpg

An Artificial Gecko Foot Model CAD model Assembly with identity pairs (yellow)

An Artificial Gecko Foot Model Hexahedral Nonconforming Mesh

An Artificial Gecko Foot Model Conforming mesh is default in COMSOL. Nonconforming Mesh is Optional not as accurate as conforming mesh but usually quicker to solve for

Basic contact force and friction force Constrained at other end

An Artificial Gecko Foot Model 85,000 degrees of freedom Solves in 8 s using PARDISO parallel solver Visualization: Von Mises Effective Stress Plot Deformation Plot Core 2 Duo T9900 3GHz, using <1GB

An Artificial Gecko Foot Model Conforming mesh 583,000 degrees of freedom Solves in 101 s using PARDISO parallel solver Core 2 Duo T9900 3GHz, using ~3.5GB