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Experimental validation of the new modular application of the upper bound theorem in indentation.

Bermudo C, Martín F, Martín MJ, Sevilla L - PLoS ONE (2015)

Bottom Line: The analytical model is originated from the Upper Bound Theorem application by means of its new modular distribution.The experimental validation is performed through a series of indentation tests with work-pieces of annealed aluminium EN AW-2030 and punches of steel AISI 304, under plane strain conditions.The results are compared with the ones obtained from the application of this new modular distribution of the Upper Bound Theorem, showing a good approximation and suitability of the model developed for an indentation-based process.

View Article: PubMed Central - PubMed

Affiliation: Department of Civil, Material and Manufacturing Engineering, University of Malaga, Malaga, Spain.

ABSTRACT
Nowadays, thanks to the new manufacturing processes, indentation is becoming an essential part of the new arising processes such as the Incremental Forming Processes. This work presents the experimental validation of the analytical model developed for an indentation-based process. The analytical model is originated from the Upper Bound Theorem application by means of its new modular distribution. The modules considered are composed of two Triangular Rigid Zones each. The experimental validation is performed through a series of indentation tests with work-pieces of annealed aluminium EN AW-2030 and punches of steel AISI 304, under plane strain conditions. The results are compared with the ones obtained from the application of this new modular distribution of the Upper Bound Theorem, showing a good approximation and suitability of the model developed for an indentation-based process.

No MeSH data available.


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Optimal configuration.
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pone.0122790.g001: Optimal configuration.

Mentions: The modular application of the UBT, implemented by F. Martín in 2009 [13], shows an improved approximation to the real effort values that are needed in the deformation processes studied [14,15]. After the appropriate model review for an indentation process, the optimal model is the one in Fig 1, being 2L the total width of the punch, HT the total height of a quarter of the work-piece studied, h the modules, height, V the punch speed and θ the modules optimal angle.


Experimental validation of the new modular application of the upper bound theorem in indentation.

Bermudo C, Martín F, Martín MJ, Sevilla L - PLoS ONE (2015)

Optimal configuration.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4380347&req=5

pone.0122790.g001: Optimal configuration.
Mentions: The modular application of the UBT, implemented by F. Martín in 2009 [13], shows an improved approximation to the real effort values that are needed in the deformation processes studied [14,15]. After the appropriate model review for an indentation process, the optimal model is the one in Fig 1, being 2L the total width of the punch, HT the total height of a quarter of the work-piece studied, h the modules, height, V the punch speed and θ the modules optimal angle.

Bottom Line: The analytical model is originated from the Upper Bound Theorem application by means of its new modular distribution.The experimental validation is performed through a series of indentation tests with work-pieces of annealed aluminium EN AW-2030 and punches of steel AISI 304, under plane strain conditions.The results are compared with the ones obtained from the application of this new modular distribution of the Upper Bound Theorem, showing a good approximation and suitability of the model developed for an indentation-based process.

View Article: PubMed Central - PubMed

Affiliation: Department of Civil, Material and Manufacturing Engineering, University of Malaga, Malaga, Spain.

ABSTRACT
Nowadays, thanks to the new manufacturing processes, indentation is becoming an essential part of the new arising processes such as the Incremental Forming Processes. This work presents the experimental validation of the analytical model developed for an indentation-based process. The analytical model is originated from the Upper Bound Theorem application by means of its new modular distribution. The modules considered are composed of two Triangular Rigid Zones each. The experimental validation is performed through a series of indentation tests with work-pieces of annealed aluminium EN AW-2030 and punches of steel AISI 304, under plane strain conditions. The results are compared with the ones obtained from the application of this new modular distribution of the Upper Bound Theorem, showing a good approximation and suitability of the model developed for an indentation-based process.

No MeSH data available.


Related in: MedlinePlus