MeshPerturb: MATLAB codes for mesh perturbation and automated pre and post processing of post-bifurcation analyses via COMSOL
Name
MeshPerturb 1.0.zip
Size
2.74 MB
Format
Unknown
Checksum (MD5)
9a51f0d2cf6bcd3e7e535e43b1e5004f
Author(s)
Saha, Sourabh K.
Culpepper, Martin L.
Date Issued
May 10, 2014
Abstract
Recently, there has been an interest in designing systems that employ buckling bifurcation as a desired mechanism to generate motion and/or form. As buckling has traditionally been considered a failure mode to be avoided, computational tools for predicting the state of the system after buckling are not well developed. For example, modules for post-bifurcation studies are not available in most of the commercial finite element software packages. Herein, we provide MATLAB codes that add the ability to perform post-bifurcation studies to the commercially available COMSOL finite element package. This is achieved by implementing mesh perturbations as a scheme to introduce geometric imperfections to the system. Additionally, we provide codes to automate pre/post processing the studies. These codes enable performing (i) post-bifurcation analysis, (ii) studies on sensitivity to mesh imperfections, and (iii) unattended parametric studies that require re-meshing the geometry.
Subjects
Mesh perturbation
Post-bifurcation
Post-buckling
Wrinkling
Finite elements
Persistent DSpace Link
