Abstract
| Original language | English |
|---|---|
| Number of pages | 9 |
| Journal | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY |
| Publication status | Published - 2016 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
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Effects of the indentation process on fatigue life of drilled specimens: optimization of the distance between adjacent holes. / Parrinello, Francesco; Giallanza, Antonio; Marannano, Giuseppe Vincenzo.
In: JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, 2016.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Effects of the indentation process on fatigue life of drilled specimens: optimization of the distance between adjacent holes
AU - Parrinello, Francesco
AU - Giallanza, Antonio
AU - Marannano, Giuseppe Vincenzo
PY - 2016
Y1 - 2016
N2 - The generation of permanent compressive stresses around the holes is recognized as a valuable mean to delay the onset and propagation of the defects and to extend the fatigue life of the mechanical components. In the work, a bilateral indentation process, performed on each side of the component, is widely used in order to create a residual circumferential stress field around the area to be drilled and that persists after the drilling operation. In order to evaluate the process parameters and to identify optimal geometric solutions, several static and fatigue tests are conducted on AW 6082-T6 aluminum alloy specimen where two holes are created. In particular, experimental tests on only drilled specimens (OD) and specimens subjected to Indentation process (IP) varying the indentation depth and the center-tocenter distance of the holes are performed. Several numerical analyses, conducted in ANSYS APDL environment with explicit solver, allow to determine the influence of the distance between two adjacent holes and the effect of the indentation depth on the residual stress distribution.
AB - The generation of permanent compressive stresses around the holes is recognized as a valuable mean to delay the onset and propagation of the defects and to extend the fatigue life of the mechanical components. In the work, a bilateral indentation process, performed on each side of the component, is widely used in order to create a residual circumferential stress field around the area to be drilled and that persists after the drilling operation. In order to evaluate the process parameters and to identify optimal geometric solutions, several static and fatigue tests are conducted on AW 6082-T6 aluminum alloy specimen where two holes are created. In particular, experimental tests on only drilled specimens (OD) and specimens subjected to Indentation process (IP) varying the indentation depth and the center-tocenter distance of the holes are performed. Several numerical analyses, conducted in ANSYS APDL environment with explicit solver, allow to determine the influence of the distance between two adjacent holes and the effect of the indentation depth on the residual stress distribution.
KW - Cold working
KW - FE analysis
KW - Fatigue
KW - Indentation process
KW - Residual stress
UR - http://hdl.handle.net/10447/181731
M3 - Article
JO - JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
JF - JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
SN - 1976-3824
ER -