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Micro-indentation of a Conical Rigid Wedge by Numerical Slip-line Field Theory: A Hybrid Approach
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Slip-line field theory is generally applied for determination of plastic flow lines, stress, velocity of flow and plastic work. In this work, micro-indentation of a conical wedge into an infinitely long block has been analysed by numerical simulation of slip-line field equations. Though the previous works in this field considered straight line profile of the bulged material around the wedge, experimental results showed that the free surface of the material is not actually straight but curvilinear in shape. This work computes the slip line field considering the free surface separately as linear, or parabolic, or circular in nature. The combinations of linear and parabolic as well as linear and circular profiles are also studied. Results obtained in this work indicate suitability of the method showing good matching with the results reported in published literature.
Keywords
Surface Profile, Micro-indentation, Slip-line Field, Numerical Technique, Hybrid Analysis.
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