On the connection between mode II and mode III effective thresholds in metals [PDF]
Fracture and Structural Integrity, 2017 Closure-free long cracks under the remote mode III loading grow in a more complicated way than those under the remote mode II. For bcc metals, a coplanar in-plane spreading of tongues driven by the local mode II loading components at crack-front ...
Tomas Vojtek +2 more
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Crack front segmentation under combined mode I - and mode III - loading [PDF]
Fracture and Structural Integrity, 2016 ABSTRACT. This article approaches the topic of crack initiation and crack growth behaviour under combined mode I- and mode III-loading conditions. Such loading combinations especially lead to a crack, which unscrew out of its initial orientation
A. Eberlein , H. A. Richard
doaj +9 more sources
Effects of microstructure and crystallography on crack path and intrinsic resistance to shear-mode fatigue crack growth [PDF]
Fracture and Structural Integrity, 2015 The paper focuses on the effective resistance and the near-threshold growth mechanisms in the ferritic-pearlitic and the pure pearlitic steel. The influence of microstructure on the shear-mode fatigue crack growth is divided here into two factors: the ...
J. Pokluda +3 more
doaj +11 more sources
Analysis of Mixed-Mode I/II/III Fracture Toughness Based on a Three-Point Bending Sandstone Specimen with an Inclined Crack [PDF]
Applied Sciences, 2021 The crack-propagation form may appear as an arbitrary mixed-mode fracture in an engineering structure due to an irregular internal crack. It is of great significance to research the mixed-mode fracture of materials with cracks.
Xin Pan +4 more
doaj +2 more sources
Averaged strain energy density estimated rapidly from the nodal stresses by FEM for cracks under mixed mode loadings including the T-stress contribution [PDF]
Fracture and Structural Integrity, 2019 The present contribution reviews a recently proposed method to rapidly estimate the averaged SED at the tip of short as well as long cracks under in-plane I+II and long cracks under out-of-plane I+III mixed mode loadings.
Giovanni Meneghetti +2 more
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3D Analyses of crack propagation in torsion [PDF]
Fracture and Structural Integrity, 2015 The initiation and propagation of fatigue cracks during cyclic torsion loading was studied in a cast Al alloy (A357) with a relatively large (~500 ?m) grain size.
D. Shiozawa +5 more
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Variable mode-mixity during fatigue cycles – crack tip parameters determined from displacement fields measured by digital image correlation [PDF]
Fracture and Structural Integrity, 2017 This paper focusses on discussing equivalent stress intensity factors and kink angles after a change of mode-mixity from one cycle to the next and when the mode-mixity changes continuously during the fatigue cycles.
Michael Vormwald +4 more
doaj +3 more sources
Deep Underground Science and Engineering, 2023 Fractures are widely present in geomaterials of civil engineering and deep underground engineering. Given that geomaterials are usually brittle, the fractures can significantly affect the evaluation of underground engineering construction safety and the ...
Jiyun Xu +3 more
doaj +1 more source
Fatigue crack path and threshold in Mode II and Mode III loadings
Engineering Fracture Mechanics, 2008 Abstract In order to investigate the crack path under Mode II or Mode III loadings, reversed torsion tests were carried out on SAE52100 and Mode II fatigue crack growth tests were carried out on 0.47% carbon steel specimens. In the torsional fatigue test (SAE52100), the type of inclusion at the torsional fatigue fracture origin was slender MnS ...
Y. Murakami +3 more
openaire +2 more sources
Cracking Characteristics and Mechanism of Internal Components of Large-Span Shield Tunnel
Advances in Civil Engineering, 2023 With the ever-increasing number of large-span shield tunneling projects and the extended operational time, their distinctive internal component issues are becoming more pronounced and exhibiting unique characteristics.
Fei Dong +4 more
doaj +1 more source