Abstract
The time-independent plastic and time-dependent creep deformations of Sn3.8Ag0.7Cu solder are considered in a unified framework by using a state variable approach. A new viscoplastic constitutive model that includes the kinematic hardening behavior of solder is proposed in this paper. Back stress, which is used for characterizing the kinematic hardening behavior, is selected as the state variable for the proposed constitutive model. The model constants are determined from curve fitting constant strain-rate experiment results. A numerical model based on the new unified viscoplastic constitutive model was applied to simulate various loading histories and compared to experimental test results, and to numerical predictions obtained by using the Anand viscoplastic model.
Original language | English |
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Title of host publication | International Microsystems Packaging Assembly and Circuits Technology Conference, IMPACT 2010 and International 3D IC Conference, Proceedings |
DOIs | |
Publication status | Published - 2010 |
Event | 2010 5th International Microsystems, Packaging, Assembly and Circuits Technology Conference, IMPACT 2010 and International 3D IC Conference - Taipei, Taiwan Duration: 2010 Oct 20 → 2010 Oct 22 |
Other
Other | 2010 5th International Microsystems, Packaging, Assembly and Circuits Technology Conference, IMPACT 2010 and International 3D IC Conference |
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Country | Taiwan |
City | Taipei |
Period | 10-10-20 → 10-10-22 |
All Science Journal Classification (ASJC) codes
- Hardware and Architecture
- Electrical and Electronic Engineering