Numerical analysis of uniaxial strain ratcheting of conductive adhesives
- Resource Type
- Conference
- Authors
- Li, Zhi; Wu, Xiao-yun; Wang, Yun-tao; Zhao, Mei-rong; You, Min
- Source
- 2009 8th International Conference on Reliability, Maintainability and Safety Reliability, Maintainability and Safety, 2009. ICRMS 2009. 8th International Conference on. :1286-1289 Jul, 2009
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
General Topics for Engineers
Power, Energy and Industry Applications
Numerical analysis
Uniaxial strain
Conductive adhesives
Capacitive sensors
Stress
Finite element methods
Bonding
Copper
Wire
Plastics
strain cycle
conductive adhesives
numerical simulation
ratcheting
- Language
Under the condition of uniaxial strain(Amplitude is ±0.025%), the elastic-plastic finite element method was used to analyze the bonding of conductive/copper wire. The result shows that the plastic strain of X and Y direction is mainly occurred at two positions: one is at the left arc side; the other is at the right arc side of the Department. The maximum value of the von Mises equivalent stress occurs near the point outside the left arc as the strain cycle process. The peak value of von Mises equivalent stress in epoxy adhesive was higher than that in the ASA acrylon adhesive (91.1MPa to 59.5MPa). However, because the former has a higher yield strength, and therefore conductive epoxy adhesive failure is not easy