Results 11 to 20 of about 73 (70)
Fatigue &Fracture of Engineering Materials &Structures, Volume 46, Issue 10, Page 3872-3891, October 2023., 2023 Abstract In this study, the fatigue crack growth rate in four different tool steel microstructures (hot rolled, powdermetallurgically processed, as‐cast, and carbide‐free) is experimentally measured and correlated with hard phase size and spacing, as well as with the roughness of the fracture surface that is created by crack kinking.
Lukas Brackmann +4 more
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Material Testing 2.0: A brief review
Strain, Volume 59, Issue 3, June 2023., 2023 Abstract With the advent of camera‐based full‐field measurement techniques such as digital image correlation (DIC), researchers have been trying to exploit such rich data sets through the use of more complex test configurations than the standard ones (uniaxial tension/compression, bending etc.).
Fabrice Pierron
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Decompression and Fracturing Caused by Magmatically Induced Thermal Stresses
Journal of Geophysical Research: Solid Earth, Volume 128, Issue 3, March 2023., 2023 Abstract Studies of host rock deformation around magmatic intrusions usually focus on the development of stresses directly related to the intrusion process. This is done either by considering an inflating region that represents the intruding body, or by considering multiphase deformation.
D. Kiss +3 more
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An EVP Double‐Yield Nonstationary Flow Surface Model for Soft Clay
Advances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022 According to experimental findings, soft clay has compression and shear creep. The goal of the study is to develop an elastic‐viscoplastic (EVP) model for the viscous behavior of soft clay. The new EVP model is deduced from the associated flow rule, Yin’s double‐yield surface theory, and the critical state soil mechanics. The nonstationary flow surface
Liucheng Chang +3 more
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Analysis of Damage Constitutive Model for Frozen Red Clay under Uniaxial Compression
Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022 At present, it is in the peak period of infrastructure construction in western China, and due to the natural climate, the soil has been frozen for a long time, but there is little research on frozen red clay at present. Therefore, it is necessary to further study the mechanical properties of frozen red clay.
Bin Lin +3 more
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GAMM-Mitteilungen, Volume 44, Issue 3, September 2021., 2021 Abstract When developing reliable and useful models for selective laser melting processes of large parts, various simplifications are necessary to achieve computationally efficient simulations. Due to the complex processes taking place during the manufacturing of such parts, especially the material and heat source models influence the simulation ...
Isabelle Noll +2 more
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An anisotropic viscoplasticity model for shale based on layered microstructure homogenization
International Journal for Numerical and Analytical Methods in Geomechanics, Volume 45, Issue 4, Page 502-520, March 2021., 2021 Abstract Viscoplastic deformation of shale is frequently observed in many subsurface applications. Many studies have suggested that this viscoplastic behavior is anisotropic—specifically, transversely isotropic—and closely linked to the layered composite structure at the microscale.
Jinhyun Choo +2 more
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Model for (De)Compaction and Porosity Waves in Porous Rocks Under Shear Stresses
Journal of Geophysical Research: Solid Earth, Volume 125, Issue 8, August 2020., 2020 Abstract An understanding of instantaneous and long‐term compaction of porous rocks is important for reservoir engineering and Earth sciences. Experience from laboratory triaxial compression tests and from subsurface operations indicates that shear and volumetric deformations are interdependent.
V. M. Yarushina +2 more
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Variational eigenerosion for rate‐dependent plasticity in concrete modeling at small strain
International Journal for Numerical Methods in Engineering, Volume 121, Issue 7, Page 1388-1409, 15 April 2020., 2020 Summary In the context of eigenfracture scheme, the work at hand introduces a variational eigenerosion approach for inelastic materials. The theory seizes situations where the material accumulates large amounts of plastic deformations. For these cases, the surface energy entering the energy balance equation is rescaled to favor fracture, thus energy ...
Aurel Qinami +2 more
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Journal of Geophysical Research: Solid Earth, Volume 125, Issue 1, January 2020., 2020 Abstract The long‐term strength of the lithosphere is controled by two different modes of deformation: a brittle‐like, effective pressure‐sensitive behavior at shallow crustal depth, which gradually transits to a thermally activated ductile flow rheology with increasing depth.
Antoine B. Jacquey, Mauro Cacace
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