| Presentation | 2004/5/14 Simulation of Deformation of Lead-Free Solder Alloys Using Viscoplastic Constitutive Model Ken-ichi OHGUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An accurate FEM (Finite Element Method) analysis of lead-free solder joints should be conducted to estimate its thermal fatigue resistance. Almost all lead-free solder alloys show large time-dependent deformation so-called "viscoplastic deformation" such as strain rate effects, creep. Then, a FEM program must employ a viscoplastic constitutive model to describe the time-dependent deformation of lead-free solder alloys. This paper proposes a plasticity-creep separate type of inelastic constitutive model. To simply determine the material constants so-called a "plasticity-creep separation method" is also proposed. Using the proposed model and the determination method, the viscoplastic deformation of lead-free solder alloys can be simulated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Electronic Package / Lead-Free Solder Alloys / Viscoplastic Constitutive Model / Creep / Cyclic Loading / Stress Relaxation |
| Paper # | EMD2004-5 |
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| Conference Information | |
| Committee | EMD |
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| Conference Date | 2004/5/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Electromechanical Devices (EMD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Simulation of Deformation of Lead-Free Solder Alloys Using Viscoplastic Constitutive Model |
| Sub Title (in English) | |
| Keyword(1) | Electronic Package |
| Keyword(2) | Lead-Free Solder Alloys |
| Keyword(3) | Viscoplastic Constitutive Model |
| Keyword(4) | Creep |
| Keyword(5) | Cyclic Loading |
| Keyword(6) | Stress Relaxation |
| 1st Author's Name | Ken-ichi OHGUCHI |
| 1st Author's Affiliation | Faculty of Resource Science and Engineering, Akita University() |
| Date | 2004/5/14 |
| Paper # | EMD2004-5 |
| Volume (vol) | vol.104 |
| Number (no) | 74 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |