| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
|
|---|
| Research Abstract |
In this study, a time-dependent static and cyclic mechanical behavior of Ag-epoxy conductive adhesive was investigated. The time-dependent static and cyclic mechanical behavior can be reproduced by the generalization Maxwell model which was determined by stress relaxation test. Furthermore, fatigue life of the Ag-epoxy conductive adhesive can be estimated by visco-elastic energy that is calculated by FEM analysis.
In addition, the anisotropic viscoelasticity of the Ag-epoxy conductive adhesive was investigated using computational material testing using micro-scale FEM model. Anisotropy appears in the viscoelasticity of the Ag-epoxy conductive adhesive under the influence of Ag filler orientation. The anisotropic viscoelasticity of the Ag-epoxy conductive adhesive is reproduced by the constitutive equation which combined an orthotropic elasticity and a generalization Maxwell model.
|
