Results 11 to 20 of about 5,371,238 (109)

Influence of hard phase size and spacing on the fatigue crack propagation in tool steels—Numerical simulation and experimental validation

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, Dennis Wingender, Sebastian Weber, Daniel Balzani, Arne Röttger   +4 more
wiley   +1 more source

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
wiley   +1 more source

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, E. Moulas, B. J. P. Kaus, A. Spang   +3 more
wiley   +1 more source

Fluid boundary of a viscoplastic Bingham flow for finite solid deformations [PDF]

, 2010
The modelling of viscoplastic Bingham fluids often relies on a rheological constitutive law based on a "plastic rule function" often identical to the yield criterion of the solid state. It is also often assumed that this plastic rule function vanishes at
Thual, Olivier, Lacaze, Laurent
core   +1 more source

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, Hongyu Wang, Ya Wang, Valeria Vignali   +3 more
wiley   +1 more source

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, Yongjia Zhao, Guoqiang Li, Jose Antonio Fonseca de Oliveira Correia   +3 more
wiley   +1 more source

On the incorporation of a micromechanical material model into the inherent strain method—Application to the modeling of selective laser melting

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, Thorsten Bartel, Andreas Menzel   +2 more
wiley   +1 more source

Predictive potential of Perzyna viscoplastic modelling for granular geomaterials [PDF]

, 2018
This paper reappraises Perzyna‐type viscoplasticity for the constitutive modelling of granular geomaterials, with emphasis on the simulation of rate/time effects of different magnitude.
Lorenzo Sanavia, Pisanò, Federico, Lazari, Maria (author), di Prisco C., Maria Lazari, Sanavia, Lorenzo, Pisano, F., Pisano, F. (author), Pisano F., Sanavia, Lorenzo (author), Federico Pisanò, di Prisco, Claudio, di Prisco, Claudio (author), Lazari M., Claudio di Prisco, Lazari, Maria, Sanavia L.   +16 more
core   +2 more sources

Viscoplastic behavior of diamond die attach subjected to high temperature conditions [PDF]

, 2012
In power electronic applications, diamond based semi-conductors appears to be a new way to widely increase the capabilities of power electronic converters. The main prospective expected is an increasing in system integration and power capabilities.
Msolli, Sabeur, Baazaoui, Ahlem, Karama, Moussa, M. Karama, Alexis, Joël, J. Alexis, O. Dalverny, A. Baazaoui, Dalverny, Olivier, S. Msolli   +9 more
core   +1 more source

Implicit integration scheme for porous viscoplastic potential-based constitutive equations [PDF]

, 2011
This paper deals with a viscoplastic potential-based model allowing thermomechanical damage behavior modeling of porous materials. The model describes rate dependent effects, hardening, creep as well as defects coalescence and propagation.
Msolli, S., Msolli, Sabeur, Karama, Moussa, M. Karama, Alexis, Joël, J. Alexis, O. Dalverny, Dalverny, O., Alexis, J., Dalverny, Olivier, Karama, M., S. Msolli   +11 more
core   +1 more source