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Paper Information

Journal:   MODARES MECHANICAL ENGINEERING   APRIL 2014 , Volume 14 , Number 2; Page(s) 188 To 194.
 
Paper: 

A COMPARATIVE STUDY BETWEEN JOHNSON­COOK AND PTW MODELS IN SIMULATION OF COLD SPRAY PROCESS

 
 
Author(s):  RAHMATI SAEED, GHAEI ABBAS*, REZAEIAN AHMAD
 
* DEPARTMENT OF MECHANICAL ENGINEERING, ISFAHAN UNIVERSITY OF TECHNOLOGY, ISFAHAN, IRAN
 
Abstract: 

Cold spray is a process which is used in coating industry and manufacturing of new parts. Experimental studies of this process are expensive and also very difficult due to high velocity of particles. Therefore, one effective method to study this process is its computer simulation. Previous works show that the Johnson-Cook hardening law has been usually used for simulation of this process. However, it is unanimously believed that this model is not able to reproduce the material behavior at extremely high strain rates commonly occurred in the cold spray process. Therefore, the simulation results are expected to improve if a suitable material model for extremely high strain rates is used. In this study, the PTW1 model was implemented in ABAQUS commercial finite element package. The cold spray process was then simulated for copper using both the PTW and Johnson-Cook hardening models. A comparison between the simulation and experimental results showed that the PTW model did improve the simulation results. The predicted flow stress by Johnson-Cook model was also shown to be not so sensitive to strain rate at extremely high strain rates.

 
Keyword(s): SIMULATION, COLD SPRAY, HIGH STRAIN RATE
 
 
References: 
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Click to Cite.
APA: Copy

RAHMATI, S., & GHAEI, A., & REZAEIAN, A. (2014). A COMPARATIVE STUDY BETWEEN JOHNSON­COOK AND PTW MODELS IN SIMULATION OF COLD SPRAY PROCESS. MODARES MECHANICAL ENGINEERING, 14(2), 188-194. https://www.sid.ir/en/journal/ViewPaper.aspx?id=406955



Vancouver: Copy

RAHMATI SAEED, GHAEI ABBAS, REZAEIAN AHMAD. A COMPARATIVE STUDY BETWEEN JOHNSON­COOK AND PTW MODELS IN SIMULATION OF COLD SPRAY PROCESS. MODARES MECHANICAL ENGINEERING. 2014 [cited 2021May06];14(2):188-194. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=406955



IEEE: Copy

RAHMATI, S., GHAEI, A., REZAEIAN, A., 2014. A COMPARATIVE STUDY BETWEEN JOHNSON­COOK AND PTW MODELS IN SIMULATION OF COLD SPRAY PROCESS. MODARES MECHANICAL ENGINEERING, [online] 14(2), pp.188-194. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=406955.



 
 
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