Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue
In the present paper, the multiaxial fatigue life assessment of notched structural components is performed by employing a strain-based multiaxial fatigue criterion. Such a criterion, depending on the critical plane concept, is extended by implementing the control volume concept reated to the Strain...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Gruppo Italiano Frattura
2017-06-01
|
| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/1865 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841562838244524032 |
|---|---|
| author | Andrea Carpinteri Giovanni Fortese Camilla Ronchei Daniela Scorza Sabrina Vantadori Filippo Berto |
| author_facet | Andrea Carpinteri Giovanni Fortese Camilla Ronchei Daniela Scorza Sabrina Vantadori Filippo Berto |
| author_sort | Andrea Carpinteri |
| collection | DOAJ |
| description | In the present paper, the multiaxial fatigue life assessment of notched structural components is performed by employing a strain-based multiaxial fatigue criterion. Such a criterion, depending on the critical plane concept, is extended by implementing the control volume concept reated to the Strain Energy Density (SED) approach: a material point located at a certain distance from the notch tip is assumed to be the verification point where to perform the above assessment. Such a distance, measured along the notch bisector, is a function of both the biaxiality ratio (defined as the ratio between the applied shear stress amplitude and the normal stress amplitude) and the control volume radii under Mode I and Mode III. Once the position of the verification point is determined, the fatigue lifetime is assessed through an equivalent strain amplitude, acting on the critical plane, together with a unique material reference curve (i.e. the Manson-Coffin curve). Some uniaxial and multiaxial fatigue data related to V-notched round bars made of titanium grade 5 alloy (Ti-6Al-4V) are examined to validate the present criterion. |
| format | Article |
| id | doaj-art-43123be16e054ab995514e9bc17d65f3 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2017-06-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-43123be16e054ab995514e9bc17d65f32025-01-03T00:39:57ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932017-06-011141Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigueAndrea CarpinteriGiovanni ForteseCamilla RoncheiDaniela ScorzaSabrina VantadoriFilippo BertoIn the present paper, the multiaxial fatigue life assessment of notched structural components is performed by employing a strain-based multiaxial fatigue criterion. Such a criterion, depending on the critical plane concept, is extended by implementing the control volume concept reated to the Strain Energy Density (SED) approach: a material point located at a certain distance from the notch tip is assumed to be the verification point where to perform the above assessment. Such a distance, measured along the notch bisector, is a function of both the biaxiality ratio (defined as the ratio between the applied shear stress amplitude and the normal stress amplitude) and the control volume radii under Mode I and Mode III. Once the position of the verification point is determined, the fatigue lifetime is assessed through an equivalent strain amplitude, acting on the critical plane, together with a unique material reference curve (i.e. the Manson-Coffin curve). Some uniaxial and multiaxial fatigue data related to V-notched round bars made of titanium grade 5 alloy (Ti-6Al-4V) are examined to validate the present criterion.https://www.fracturae.com/index.php/fis/article/view/1865Critical plane approachControl volumeNotched componentsMultiaxial low-cycle fatigueStrain-based criterion |
| spellingShingle | Andrea Carpinteri Giovanni Fortese Camilla Ronchei Daniela Scorza Sabrina Vantadori Filippo Berto Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue Fracture and Structural Integrity Critical plane approach Control volume Notched components Multiaxial low-cycle fatigue Strain-based criterion |
| title | Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue |
| title_full | Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue |
| title_fullStr | Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue |
| title_full_unstemmed | Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue |
| title_short | Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue |
| title_sort | joined application of a multiaxial critical plane criterion and a strain energy density criterion in low cycle fatigue |
| topic | Critical plane approach Control volume Notched components Multiaxial low-cycle fatigue Strain-based criterion |
| url | https://www.fracturae.com/index.php/fis/article/view/1865 |
| work_keys_str_mv | AT andreacarpinteri joinedapplicationofamultiaxialcriticalplanecriterionandastrainenergydensitycriterioninlowcyclefatigue AT giovannifortese joinedapplicationofamultiaxialcriticalplanecriterionandastrainenergydensitycriterioninlowcyclefatigue AT camillaronchei joinedapplicationofamultiaxialcriticalplanecriterionandastrainenergydensitycriterioninlowcyclefatigue AT danielascorza joinedapplicationofamultiaxialcriticalplanecriterionandastrainenergydensitycriterioninlowcyclefatigue AT sabrinavantadori joinedapplicationofamultiaxialcriticalplanecriterionandastrainenergydensitycriterioninlowcyclefatigue AT filippoberto joinedapplicationofamultiaxialcriticalplanecriterionandastrainenergydensitycriterioninlowcyclefatigue |