Mechanical simulation of viscoelastic materials and assigning a viscoelastic
material to the modeled parts in the simulations are difficult task. For the
simulations, material model should be well chosen and material coefficients of the
chosen models should be known.
In order to obtain accurate simulations, hyperelastic characteristics of the
viscoelastic materials should be investigated and hyperelastic model should be
incorporated in the solutions. Material models and material model&rsquo / s coefficients are
chosen with the help of mechanical tests/experiments for these situations.
The main goal of this thesis is to optimize material model&rsquo / s coefficients by using an
indenter test setup results and inverse finite element modeling. To achieve this,
firstly by using a haptic device and other required equipments an indenter setup was
prepared to test the materials mechanically. Inverse finite element modeling method
is used in order to model the materials according to their viscoelastic and hyperelastic characteristics. The model obtained from analysis was optimized by
using the results obtained from indenter setup according to experimental test data.
By doing this, the correctness of the model chosen by inverse finite element
modeling was proved for the tested material and material model coefficients were
calculated correctly.
| Identifer | oai:union.ndltd.org:METU/oai:etd.lib.metu.edu.tr:http://etd.lib.metu.edu.tr/upload/12612634/index.pdf |
| Date | 01 September 2010 |
| Creators | Tabakci, Alican |
| Contributors | Konukseven, Ilhan Erhan |
| Publisher | METU |
| Source Sets | Middle East Technical Univ. |
| Language | English |
| Detected Language | English |
| Type | M.S. Thesis |
| Format | text/pdf |
| Rights | To liberate the content for METU campus |
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