Results 61 to 70 of about 4,588 (232)
Stress Barriers and Their Impact on Rupture Propagation
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 2, February 2026.Abstract Earthquake ruptures often exhibit complex behaviors, including abrupt arrest followed by delayed re‐nucleation. While on‐fault stress heterogeneity is a recognized contributing factor, as it can arrest or slow down rupture propagation, its interaction with propagating ruptures remains complex and not fully understood. Here, we study frictional
F. Paglialunga +2 more
wiley +1 more source
A Novel Approach for ∆K Estimation in the Fatigue Threshold Region Based on ΔKth and Kmax,th
Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 2, Page 653-662, February 2026.ABSTRACT A novel procedure, proposed by Kujawski and Vasudevan 1, has been evaluated as an alternative to the ASTM E647 standard for determining the ∆Kth and Kmax,th thresholds. This method relies solely on the actual propagation of cracks, which occurs only when both thresholds are satisfied simultaneously. For long cracks, a more efficient estimation
Pablo M. Cerezo +3 more
wiley +1 more source
Field Observations of Decreasing Rock Fracturing Rates Over Geologic Time
Journal of Geophysical Research: Earth Surface, Volume 131, Issue 1, January 2026.Abstract Rock fracturing regulates the topography, carbon cycle, geologic hazards, and infrastructure degradation of the Earth. Yet, there remains a paucity of constraints on long‐term fracturing behavior. Here we use field measurements of 2221 clasts across a range of environments and rock types to show that the number and total length of fractures in
M. Rasmussen +17 more
wiley +1 more source
Assessment of structural integrity of subsea wellhead system: analytical and numerical study [PDF]
Fracture and Structural Integrity, 2015 Subsea wellhead systems exposed to severe fatigue loading are becoming increasingly a significant problem in offshore drilling operations due to their applications in wells with higher levels of pressure and temperature, situated at larger depths and ...
A.R. Maligno +3 more
doaj +1 more source
Advances in Civil Engineering, Volume 2026, Issue 1, 2026.Traditional fracture criteria only consider the singular terms in the Williams expansion and neglect higher‐order term coefficients, resulting in significant discrepancies between predicted and measured values. To advance the understanding of rock fracture mechanisms, this study introduces a generalized maximum tangential stress (GMTS) criterion by ...
Yongfeng Liu +4 more
wiley +1 more source
Fracture and Structural Integrity, 2019 A study on the accuracy of the approximation of the displacement field around of crack tip in a sample made from bridge steel (S355) is main objective of contribution.
S. Seitl +5 more
doaj +3 more sources
A Stimulated Raman Scattering CMOS Pixel Using a High-Speed Charge Modulator and Lock-in Amplifier
Sensors, 2016 A complementary metal-oxide semiconductor (CMOS) lock-in pixel to observe stimulated Raman scattering (SRS) using a high speed lateral electric field modulator (LEFM) for photo-generated charges and in-pixel readout circuits is presented.
De Xing Lioe +6 more
doaj +1 more source
EFFECT OF PITTING CORROSION ON STRESS INTENSITY FACTORS OF SEMI-ELLIPTICAL SURFACE CRACKS ON THE OUTER WALL SURFACE OF A TUBULAR T-JOINT [PDF]
Trudy Odesskogo Politehničeskogo Universiteta, 2018 Fatigue and pitting corrosion are two important design considerations for strength assessment of steel structures of the offshore oil and gas industry.
Rahbar-Ranji Ahmad +3 more
doaj +1 more source
Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.Fracture mechanics investigates the behavior of materials containing cracks under applied loads, particularly in high‐strength aluminum alloys such as AA7075 used in aerospace and automotive structures. This study evaluates the fracture behavior of AA7075‐T6 through experimental testing, finite element analysis (FEA), and boundary element techniques ...
Tryphone Obuya Oloo +3 more
wiley +1 more source
A new proposal of effective stress and critical distance for fatigue at notches
MATEC Web of Conferences, 2014 The Theory of Critical Distance (TCD) and its associated methods have proved useful for predicting fatigue and fracture failure under stress gradients. This work reports the first analytical deduction of the effective stress and its critical distance in ...
Vallellano C., Navarro A., Chaves V.
doaj +1 more source