Results 21 to 30 of about 121 (98)
Dislocation toughening in single‐crystal KNbO3
Journal of the American Ceramic Society, Volume 106, Issue 7, Page 4371-4381, July 2023., 2023 Abstract The growing research interest in dislocation‐tuned functionality in ceramics is evident, with the most recent proofs‐of‐concept for enhanced ferroelectric properties, electrical conductivity, and superconductivity via dislocations. In this work, we focus on dislocation‐tuned mechanical properties and demonstrate that, by engineering high ...
Oliver Preuß +7 more
wiley +1 more source
Using 3D Digital Image Correlation (3D-DIC) to Measure CTOD in a Semi-Elliptical Surface Crack
Proceedings, 2018 The subsurface nature of Crack Tip Opening Displacement (CTOD) makes its direct measurement very difficult, if not impossible. During fracture toughness testing, CTOD is commonly calculated by applying a plastic hinge model using externally applied clip ...
Kaveh Samadian +2 more
doaj +1 more source
Fatigue Crack Growth in Maraging Steel Obtained by Selective Laser Melting
Applied Sciences, 2019 Selective Laser Melting (SLM) is an additive manufacturing technology, ideal for the production of complex-shaped components. Design against fatigue is fundamental in the presence of cyclic loads, particularly for these materials which typically have ...
Fernando Antunes +6 more
doaj +1 more source
Influence of Material Thickness on the Ductile Fracture of Steel Plates for Shipbuilding
Polish Maritime Research, 2022 In the shipbuilding industry, the risk of brittle fractures is relatively high because some units operate in arctic or subarctic zones and use high thickness (up to 100 mm) steel plates in their structures.
Kowalski Jakub, Kozak Janusz
doaj +1 more source
Fatigue crack growth in notched specimens: a numerical analysis
Fracture and Structural Integrity, 2019 Fatigue crack growth (FCG) is linked to irreversible and non-linear processes happening at the crack tip, which explains different problems observed in the use of da/dN-?K curves. The replacement of ?K by non-linear crack tip parameters, namely the crack
F.V. Antunes +3 more
doaj +3 more sources
Fracture and Structural Integrity, 2022 The third generation Al-Li alloy AA2050-T84 is widely used in aircraft applications due to its lightweight and significant mechanical properties. The anisotropic variations of tensile and compression properties of this alloy at various temperatures are ...
Nagaraj Ekabote +2 more
doaj +1 more source
Scientific Reports, 2023 This paper presents a novel method that uses the cold metal transfer based wire arc additive manufacturing process to fabricate functionally graded Inconel 825–SS316L walls.
T. S. Senthil +2 more
doaj +1 more source
Effect of yield stress on fatigue crack growth
Fracture and Structural Integrity, 2019 Fatigue crack growth (FCG) depends on loading, geometry and also material properties. Since FCG is supposedly linked to crack tip plastic deformation, material s yield stress, Y0, is an important parameter.
M.F. Borges +4 more
doaj +3 more sources
Geomechanics and Geophysics for Geo-Energy and Geo-ResourcesA new CTOD calculation method is investigated in this study, considering the FPZ and the effective Young’s modulus. The calculated CTOD values from four theoretical models are compared with the measured CTOD values from the three-point beam experiments ...
Yang Qiao, Zong-Xian Zhang, Jun Zhou
doaj +1 more source
Hierarchical Twin Networks Enable Exceptional Strength and Fracture Toughness in Titanium
Advanced Science, Volume 13, Issue 46, 17 August 2026.A commercial‐purity titanium with hierarchical ultrafine twin structures delivers an exceptional combination of fracture toughness (KJIc) of 187 MPa·m1/2 and specific yield strength of 140 MPa·cm3·g−1, in which pre‐engineered high‐density twin boundaries stimulate massive and
Xiao‐Wei Zou +3 more
wiley +1 more source