| Author | J. Fish, C. Oskay and R. Fan |
|---|---|
| Title | AL 6061-T6 - Elastomer Impact Simulations |
| Year | 2005 |
| Institution | Rensselaer Polytechnic Institute |
| Abstract | The behavior of the layered AL 6061-T6 - Elastomer (ERC) structure is investigated using 3D numerical simulations on different configurations shown in Fig. 4. The AL 6061-T6 is modeled as an elastic-plastic material using the Johnson Cook plasticity model; the ERC is modeled as a hyperelastic-viscoelastic material using the pressure and temperature dependent constitutive law (Nemat-Nasser, 2004). The two material models were incorporated into ABAQUS and validated against experimental data. Numerical simulations confirmed the stiffening behavior of the ERC at high strain rates. The pressure transmitted at the interface between the AL 6061-T6 and ERC has been found to be governed by the ratio of specific acoustic resistance of the two materials. Numerical simulations have been found to be in good agreement with theoretical estimates. |
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