The Anvil Effect in the Spherical Indentation Testing on Sheet Metals Conference Paper

abstract

• 2015 Published by Elsevier B.V. Spherical indentation hardness tests are widely used in manufacturing industry to obtain material property of the workpiece. For the indentation test on sheet metals, significant error can occur in measuring the penetration depth due to the anvil effect. This anvil effect is manifested with decreasing specimen thickness and increasing indentation depth. This paper critically reviews the experimental observations of the anvil effect, and studies the mechanism behind it. The experimental results and numerical simulations suggest that, when the thickness of the specimen is reduced, a change in deformation mode is experienced during the indentation process. A correction method for the anvil effect is proposed and an empirical equation is derived to determine the effective indentation depth. The experimental and numerical investigations have important implications for the interpretation of the indentation anvil effect; and the correction method for anvil effects can be used in hardness measurement to obtain accurate material property.

authors

• Wang, Jyhwen

published proceedings

• 43RD NORTH AMERICAN MANUFACTURING RESEARCH CONFERENCE, NAMRC 43

author list (cited authors)

• Zhang, Y., Dhaigude, M., & Wang, J.

citation count

• 1

complete list of authors

• Zhang, Ying||Dhaigude, Mayuresh||Wang, Jyhwen

publication date

• January 2015

publisher

• Elsevier  Publisher

published in

• Procedia Manufacturing  Journal

keywords

• Anvil Effect
• Correction
• Hardness Testing
• Sheet Metal

Digital Object Identifier (DOI)

• 10.1016/j.promfg.2015.09.072

URI

• https://hdl.handle.net/1969.1/ETD-TAMU-1818

start page

• 828

end page

• 839

volume

• 1

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.promfg.2015.09.072