Specifications

Corresponding author: Luo, S.-J. ([e-mail])
Source title: Cailiao Gongcheng/Journal of Materials Engineering
Abbreviated source title: Cailiao Gongcheng
Issue: 1
Issue date: January 2013
Publication year: 2013
Pages: 40-44
Language: Chinese
ISSN: 10014381
CODEN: CAGOEW
Document type: Journal article (JA)
Publisher: Beijing Institute of Aeronautical Materials (BIAM), P.O. Box 81, Beijing, 100095, China
Abstract: Biaxial fatigue behavior under combined axial and torsional loading for S135 drill pipe
steel was investigated by means of fatigue tests and data regression analysis methods, and the
fracture surfaces were observed through scanning electron microscopy. The results show that
when τa/σeq is 0.7 the fatigue life regulation of S135 drill pipe steel under combined axial and
torsional loading can be represented well by the fatigue life equation, which is expressed by
equivalent stress of tension-torsion stress amplitude. The fracture surfaces are mainly divided
into three regions such as the crack initiation, steady crack propagation and instantaneous
fracture. Fatigue cracks mainly initiate at the specimen surface and propagate rapidly in specimen.
Fatigue cracks are multiple source and the so-called ridge patterns were formed by connecting
the different fatigue source and combined loading. The fracture surfaces are characteristic of
river patterns at crack initiation region, the fracture surfaces are characteristic of fatigue striation
and rippled patterns at crack propagation region.
Number of references: 13
Main heading: Drill pipe
Controlled terms: Crack initiation - Cracks - Fatigue crack propagation - Fatigue of
materials - Fatigue testing - Fracture - Loading - Regression analysis - Scanning
electron microscopy - Steel pipe - Structural loads - Tensile strength
Uncontrolled terms: Axial-torsional loading - Biaxial fatigue - Combined loading -
Data regression - Equivalent stress - Fatigue cracks - Fatigue striations - Fracture
surfaces - In-phase - Multiple source - Ridge patterns - River pattern -
Specimen surfaces - Stress amplitudes - Torsional loadings
Classification code: 741.1 Light/Optics - 672 Naval Vessels - 545.3 Steel - 922.2
Mathematical Statistics - 511.2 Oil Field Equipment - 421 Strength of Building Materials;
Mechanical Properties - 408.1 Structural Design, General - 422.2 Strength of Building
Materials : Test Methods
DOI: 10.3969/j.issn.1001-4381.2013.01.009
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
11.
Accession number: 20131016077821
Title: Experiment on salt exchange between sediments and ponding water in drainage ditches
of saline farmland