FULL CONTENTS

QUICK LINKS
If the facts don’t fit the theory, change the facts.
-Albert Einstein

  Welcome

Current research
Molecular dynamics based cohesive zone modeling of Al (metal)–Cu50Zr50 (metallic glass) interfacial mechanical behavior and investigation of dissipative mechanisms, Pradeep Gupta, Snehanshu Pal, Natraj Yedla, Department of Metallurgical and Materials Engineering

W
e performed classical molecular dynamics (MD) simulations to predict the strength of Al (metal)–Cu50Zr50 (metallic glass) model interface at a temperature of 300 K and strain rate of 1010 s− 1 under mode-I and mode-II loading conditions based on the cohesive zone model (CZM).EAM (Embedded Atom Method)
potential is used for modeling the interaction between Al_Cu_Zr atoms. The observed dominant dissipative mechanisms at the interface are partial dislocations and stair rod dislocations under both the loading conditions. The strength of the interface decreases in the presence of a crack as expected. The traction-separation response of the interface shows a maximum stress followed by a decrease in stress indicating the complete separation of the interface. The present study gives a significant insight into metal–metallic glass interface deformation behavior and underlying mechanism. The results can be input into continuum length-scale micromechanical models that determine overall material properties. More details in Materials & Design Volume 105, 5 September 2016, Pages 41–50. (List of Research)

NEW SPONSORED PROJECT
Empirical Investigation into Merger and Acquisition in .......
PI: Dr. N. M. Leepsa
Sponsor: ICSSR, Govt. of India
 
Large-scale molecular dynamics simulation deformation s .......
PI: Prof. Natraj Yedla
Sponsor: DST-SERB, Govt. of India
 
EVENTS
 
 
KUDOS TO NITIANS