Results 61 to 70 of about 32,098 (294)

Experimental and Numerical Analysis of Fracture in 41Cr4 Steel – Issues of the Stationary Cracks

International Journal of Applied Mechanics and Engineering, 2018
This paper analyzes the process of fracture in 41Cr4 steel on the basis of experimental and numerical data obtained for non-propagating cracks. The author’s previous and latest experimental results were used to determine the apparent crack initiation ...
M. Graba
doaj   +1 more source

Determination of CTOD C in Fibre Metal Laminates by ASTM and Schwalbe Methods [PDF]

Materials Research, 2002
Fibre Metal Laminates (FMLs) have arisen as a demand of the aeronautical industry to use thin sheets with high resistance to fatigue crack growth, high damage tolerance, corrosion resistance and high specific strength.
E.M. Castrodeza, J.M. Rodrigues Touça, J.E. Perez Ipiña, F.L. Bastian   +3 more
doaj   +1 more source

Determination of Mode I Fracture Toughness of Cortical Human Bone using the DCB Test [PDF]

, 2015
The fracture behaviour of human cortical bone was analysed considering a miniaturized version of theDouble Cantilever Beam (DCB) test. A specific data reduction scheme based on crack equivalentconcept was used to obtain the resistance curves.
F. A. M. Pereira, F. G. A. Silva, F. M.Judas, J. J. L. Morais, J. Xavier, M. F. S. F. de Moura, M. I. R. Dias, N. Dourado, P. J. Lourenço   +8 more
core  

Phase Field Modeling of Fracture and Stress Induced Phase Transitions [PDF]

, 2007
We present a continuum theory to describe elastically induced phase transitions between coherent solid phases. In the limit of vanishing elastic constants in one of the phases, the model can be used to describe fracture on the basis of the late stage of ...
A. A. Griffith, B. Nestler, C. Müller-Gugenberger, E. Brener, I. A. Privorotskii, L. B. Freund, M. A. Grinfeld, R. Spatschek   +7 more
core   +2 more sources

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Simulation of fatigue crack opening in alloy D16T under constant amplitude loading using finite element method [PDF]

, 2013
Створено модель плоского зразка з центральною тріщиною в пружно-пластичній постановці за допомогою методу скінченних елементів. Обґрунтовано вибір розмірів скінченних елементів в околі вістря тріщини.
Fostyk, V., Galushchak, O., Pyndus, Y., Yasniy, P., Галущак, О., Пиндус, Юрій Іванович, Фостик, Василь Богданович, Ясній, Петро Володимирович   +7 more
core  

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

High-cycle fatigue fracture of structural materials under elastic-plastic deformation [PDF]

, 2006
The developed method of recording current values of crack tip opening displacement made it possible to reliably establish the instant when the “material” contact between the borders of a fatigue crack near its tip in a tension half-cycle ceases and the ...
Pinyak, I. S., Піняк, І. С.
core