Effect of the indentation process on fatigue life of drilled specimens

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4 Citazioni (Scopus)

Abstract

Design and manufacture of mechanical elements are strongly influenced by the evaluation of the residual stresses due to their effects on the material strength. This paper presents numerical and experimental results performed on AW 6082-T6 aluminum alloy drilled specimens when the hole is created after a bilateral indentation process. The plastic deformation induced by the indenters creates a compressive residual stress field around the hole, which persists after the drilling operation. Several numerical analysis have been carried out in ANSYS APDL explicit solver for different indentation depths and hole diameters in order to evaluate the compressive circumferential stresses, optimal process parameters and relevant geometric features. Fatigue tests are performed in order to determine the cycles to failure and the corresponding Wöhler diagram.
Lingua originaleEnglish
pagine (da-a)2847-2856
Numero di pagine10
RivistaJournal of Mechanical Science and Technology
Volume29
Stato di pubblicazionePublished - 2015

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Compressive stress
Indentation
Residual stresses
Fatigue of materials
Numerical analysis
Aluminum alloys
Plastic deformation
Drilling

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Mechanics of Materials

Cita questo

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title = "Effect of the indentation process on fatigue life of drilled specimens",
abstract = "Design and manufacture of mechanical elements are strongly influenced by the evaluation of the residual stresses due to their effects on the material strength. This paper presents numerical and experimental results performed on AW 6082-T6 aluminum alloy drilled specimens when the hole is created after a bilateral indentation process. The plastic deformation induced by the indenters creates a compressive residual stress field around the hole, which persists after the drilling operation. Several numerical analysis have been carried out in ANSYS APDL explicit solver for different indentation depths and hole diameters in order to evaluate the compressive circumferential stresses, optimal process parameters and relevant geometric features. Fatigue tests are performed in order to determine the cycles to failure and the corresponding W{\"o}hler diagram.",
author = "Antonino Pasta and Antonio Giallanza and Francesco Parrinello and Marannano, {Giuseppe Vincenzo}",
year = "2015",
language = "English",
volume = "29",
pages = "2847--2856",
journal = "KSME Journal",
issn = "1738-494X",
publisher = "Korean Society of Mechanical Engineers",

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AU - Pasta, Antonino

AU - Giallanza, Antonio

AU - Parrinello, Francesco

AU - Marannano, Giuseppe Vincenzo

PY - 2015

Y1 - 2015

N2 - Design and manufacture of mechanical elements are strongly influenced by the evaluation of the residual stresses due to their effects on the material strength. This paper presents numerical and experimental results performed on AW 6082-T6 aluminum alloy drilled specimens when the hole is created after a bilateral indentation process. The plastic deformation induced by the indenters creates a compressive residual stress field around the hole, which persists after the drilling operation. Several numerical analysis have been carried out in ANSYS APDL explicit solver for different indentation depths and hole diameters in order to evaluate the compressive circumferential stresses, optimal process parameters and relevant geometric features. Fatigue tests are performed in order to determine the cycles to failure and the corresponding Wöhler diagram.

AB - Design and manufacture of mechanical elements are strongly influenced by the evaluation of the residual stresses due to their effects on the material strength. This paper presents numerical and experimental results performed on AW 6082-T6 aluminum alloy drilled specimens when the hole is created after a bilateral indentation process. The plastic deformation induced by the indenters creates a compressive residual stress field around the hole, which persists after the drilling operation. Several numerical analysis have been carried out in ANSYS APDL explicit solver for different indentation depths and hole diameters in order to evaluate the compressive circumferential stresses, optimal process parameters and relevant geometric features. Fatigue tests are performed in order to determine the cycles to failure and the corresponding Wöhler diagram.

UR - http://hdl.handle.net/10447/138432

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JF - KSME Journal

SN - 1738-494X

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