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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.


Related in: MedlinePlus

Punch fastening tool.Tool parts for the punch fastening (A); and the tool assembled (B).
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pone.0122790.g003: Punch fastening tool.Tool parts for the punch fastening (A); and the tool assembled (B).

Mentions: Thus, a clamp system was needed. A stabilizing system for the indenter (Fig 3A) was manufactured to prevent the slippage of the punch along the compression plates and achieve a complete and proper deformation of the work-piece. The designed tool is composed of two clamping screws that push a horizontal steel bar, called clamping bar, which, in turn, performs a uniform pressure over the indenter. This support (Fig 3B) provides a wider base to the indenter, avoiding leaning.


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)

Punch fastening tool.Tool parts for the punch fastening (A); and the tool assembled (B).
© Copyright Policy
Related In: Results  -  Collection

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

pone.0122790.g003: Punch fastening tool.Tool parts for the punch fastening (A); and the tool assembled (B).
Mentions: Thus, a clamp system was needed. A stabilizing system for the indenter (Fig 3A) was manufactured to prevent the slippage of the punch along the compression plates and achieve a complete and proper deformation of the work-piece. The designed tool is composed of two clamping screws that push a horizontal steel bar, called clamping bar, which, in turn, performs a uniform pressure over the indenter. This support (Fig 3B) provides a wider base to the indenter, avoiding leaning.

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