Crack growth studies in biaxial fatigue.

H. Sehitoglu; D. F. Socie; D. Worthem

Crack growth studies in biaxial fatigue.

H. Sehitoglu, D. F. Socie, D. Worthem

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

The influence of strain state on the nucleation and early growth of fatigue cracks was investigated. Thin walled tubular specimens of Inconel 718 were subjected to combinations of axial and torsional loading in the low cycle fatigue regime. The changes in crack growth rates as a function of crack size were examined at effective strain amplitudes of 0.01 and 0.005. The crack growth rates under pure torsion, combined loading and axial loading were found to be similar for the same crack size. Crack growth rates were interpreted based on an elastoplastic fracture mechanics characterization. A strain intensity range parameter was defined based on the shear and normal strain calculated on the crack plane. For mixed mode loading conditions, similar crack growth rates were observed at a given range of strain intensity.

Original language	English (US)
Title of host publication	Unknown Host Publication Title
Publisher	Am. Soc. Test. & Mater
ISBN (Print)	0803109253, 9780803109254
State	Published - Jan 1 1988
Externally published	Yes

ASJC Scopus subject areas

Engineering(all)

Access to Document

Fingerprint Dive into the research topics of 'Crack growth studies in biaxial fatigue.'. Together they form a unique fingerprint.

Cite this

Sehitoglu, H., Socie, D. F., & Worthem, D. (1988). Crack growth studies in biaxial fatigue. In Unknown Host Publication Title Am. Soc. Test. & Mater.

@inbook{ff559846844148458f791e449e189e8e,

title = "Crack growth studies in biaxial fatigue.",

abstract = "The influence of strain state on the nucleation and early growth of fatigue cracks was investigated. Thin walled tubular specimens of Inconel 718 were subjected to combinations of axial and torsional loading in the low cycle fatigue regime. The changes in crack growth rates as a function of crack size were examined at effective strain amplitudes of 0.01 and 0.005. The crack growth rates under pure torsion, combined loading and axial loading were found to be similar for the same crack size. Crack growth rates were interpreted based on an elastoplastic fracture mechanics characterization. A strain intensity range parameter was defined based on the shear and normal strain calculated on the crack plane. For mixed mode loading conditions, similar crack growth rates were observed at a given range of strain intensity.",

author = "H. Sehitoglu and Socie, {D. F.} and D. Worthem",

year = "1988",

month = jan,

day = "1",

language = "English (US)",

isbn = "0803109253",

booktitle = "Unknown Host Publication Title",

publisher = "Am. Soc. Test. & Mater",

}

TY - CHAP

T1 - Crack growth studies in biaxial fatigue.

AU - Sehitoglu, H.

AU - Socie, D. F.

AU - Worthem, D.

PY - 1988/1/1

Y1 - 1988/1/1

N2 - The influence of strain state on the nucleation and early growth of fatigue cracks was investigated. Thin walled tubular specimens of Inconel 718 were subjected to combinations of axial and torsional loading in the low cycle fatigue regime. The changes in crack growth rates as a function of crack size were examined at effective strain amplitudes of 0.01 and 0.005. The crack growth rates under pure torsion, combined loading and axial loading were found to be similar for the same crack size. Crack growth rates were interpreted based on an elastoplastic fracture mechanics characterization. A strain intensity range parameter was defined based on the shear and normal strain calculated on the crack plane. For mixed mode loading conditions, similar crack growth rates were observed at a given range of strain intensity.

AB - The influence of strain state on the nucleation and early growth of fatigue cracks was investigated. Thin walled tubular specimens of Inconel 718 were subjected to combinations of axial and torsional loading in the low cycle fatigue regime. The changes in crack growth rates as a function of crack size were examined at effective strain amplitudes of 0.01 and 0.005. The crack growth rates under pure torsion, combined loading and axial loading were found to be similar for the same crack size. Crack growth rates were interpreted based on an elastoplastic fracture mechanics characterization. A strain intensity range parameter was defined based on the shear and normal strain calculated on the crack plane. For mixed mode loading conditions, similar crack growth rates were observed at a given range of strain intensity.

UR - http://www.scopus.com/inward/record.url?scp=85040898270&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85040898270&partnerID=8YFLogxK

M3 - Chapter

AN - SCOPUS:85040898270

SN - 0803109253

SN - 9780803109254

BT - Unknown Host Publication Title

PB - Am. Soc. Test. & Mater

ER -