Journal ArticleDOI
Fatigue crack growth acceleration in S355 steel under a single and periodic underload
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In this article , the acceleration effect induced by the underloads in the design stage, the fatigue crack growth rates in S355 steel were measured based on the compliance method, and three different load sequences, constant amplitude loading (CAL), single underload (UL), and periodic underloads (PULs), were tested.About:
This article is published in International Journal of Fatigue.The article was published on 2022-01-01. It has received 7 citations till now. The article focuses on the topics: Acceleration & Crack closure.read more
Citations
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Journal ArticleDOI
Fatigue crack growth under overload/underload in different strength structural steels
TL;DR: In this article , the effects of various baseline loading stress ratios on the fatigue crack growth rate (FCGR) were considered under a series of loading conditions, i.e., constant amplitude load (CAL), single overload (OL), single underload (UL), or periodic underloads (PULs).
Journal ArticleDOI
An Automated Optical Strain Measurement System for Estimating Polymer Degradation under Fatigue Testing
Alexey Bogdanov,Sergey V. Panin,P. S. Lyubutin,Alexander Eremin,D. G. Buslovich,A. V. Byakov +5 more
TL;DR: In this article , an automated laboratory facility based on a servo-hydraulic testing machine for estimating parameters of mechanical hysteresis loops by means of the digital image correlation (DIC) method is presented.
Journal ArticleDOI
Microstructural and Defect Evolution during WAAM Resulting in Mechanical Property Differences for AA5356 Component
TL;DR: In this paper , a quasi-in situ approach was proposed to investigate the microstructures, defects evolution, and mechanical property differences during successive deposition of AA5356 components in wire arc additive manufacturing (WAAM).
Journal ArticleDOI
Fatigue failure modes of rib‐to‐deck joints under the multiaxial stress states caused by various wheel loading characteristics
TL;DR: In this article , a full-scale Orthotropic steel bridge deck (OSBD) model was established and six loading cases were applied, and the multiaxial fatigue deviation was calculated to represent the multi-xial stress state of the bridge deck.
Journal ArticleDOI
The Relationship Between Surface Roughness and Fatigue Crack Growth Rate in AA7050-T7451 Subjected to Periodic Underloads
TL;DR: In this article , the effects of underloads on fatigue crack growth were investigated in AA7050-T7451 and showed that there is little correlation between small-scale surface roughness and the observed acceleration from underloads.
References
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Journal ArticleDOI
Time-independent constitutive theories for cyclic plasticity
TL;DR: In this paper, three different approaches are considered for the description of kinematic behavior: (i) the use of independent multi-yield surfaces, (ii) models with two surfaces only, (iii) the so-called "nonlinear-kinematic hardening rule" defined by a differential equation.
Book
Recommendations for Fatigue Design of Welded Joints and Components
TL;DR: In this paper, the authors present safety considerations for fatigue actions and fatigue assessment in a safety consideration framework, including fatigue actions, fatigue resistance, fatigue assessment, and fatigue resistance assessment.
Journal ArticleDOI
The effect of dislocation contrast on x‐ray line broadening: A new approach to line profile analysis
Tamás Ungár,András Borbély +1 more
TL;DR: In this article, the x-ray line profiles of an ultrafine grained copper crystal, produced by equal-channel angular pressing, were measured by a special high resolution diffractometer with negligible instrumental line broadening.
Journal ArticleDOI
High dislocation density–induced large ductility in deformed and partitioned steels
TL;DR: The deformed and partitioned (D and P) process produced dislocation hardening but retained high ductility, both through the glide of intensive mobile dislocations and by allowing us to control martensitic transformation.
Journal ArticleDOI
Wide range stress intensity factor expressions for ASTM E 399 standard fracture toughness specimens
TL;DR: In this paper, a polynominal expression is given for the stress intensity factor, K, from the applied force, P, and the specimen dimensions, which is explicitly stated that these expressions should not be used outside the range of relative crack length, a/W.
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