Results 51 to 60 of about 29,601 (260)

Numerical determination of shear stress relaxation modulus of polymer glasses [PDF]

The European Physical Journal E, 2017
5 pages, 2 figures.
Kriuchevskyi, Ivan, Wittmer, Joachim, Benzerara, Olivier, Meyer, Hendrik, Baschnagel, Jörg   +4 more
openaire   +5 more sources

Modeling Dislocation Cutting of γ′ Precipitates in Ni‐Base Superalloys: Linking Atomistic and Dislocation Dynamics Simulations

Advanced Engineering Materials, EarlyView.
Dislocation cutting of γ′ precipitates in Ni‐based superalloys is investigated by linking atomistic simulations with discrete dislocation dynamics. The critical cutting stress is shown to be governed by the antiphase boundary energy, while line tension effects promote edge‐preferred cutting.
Frédéric Houllé, Siwen Gao, Marc Fivel, Anxin Ma, Daria Smirnova, Sriram Anand, Arun Prakash, Julien Guénolé, Alexander Hartmaier, Erik Bitzek   +9 more
wiley   +1 more source

Viscoelastic Finite Line Contact of Thin Bonded Layered Solids of Low Elastic Modulus

Applied Sciences, 2020
A new finite element-based contact mechanics analysis of layered viscoelastic solids of low elastic modulus is presented. The methodology is based on the Maxwell viscoelastic element, with stress relaxation taken into account by the Prony series ...
Vasilis Votsios, Patricia Johns-Rahnejat, Homer Rahnejat   +2 more
doaj   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Rheology of biopolymer stabilized emulsions

Grasas y Aceites, 1997
In this work, the viscous and viscoelastic responses of food emulsions stabilized by proteins are studied. The damping function determined from the relaxation modulus, together with the relaxation spectrum calculated from the dynamic modulus, allowed a ...
J. M. Madiedo, C. Bower, M. R. Mackley, C. Gallegos   +3 more
doaj   +1 more source

New AI‐Assisted Approach for Expanding the Solution Space: Application to Lattice Structure Design

Advanced Engineering Materials, EarlyView.
This work introduces an innovative framework for designing structured materials by ex panding the design space through reparameterization of qualitative variables into continuous structural descriptors. Combined with machine‐learning‐based prediction and multi‐objective optimization, the approach enables the discovery of novel lattice architectures ...
G. H. Gahimbare, Y. Beideler, D. Chune, R. De Guio, T. Roland, H. Chibane   +5 more
wiley   +1 more source

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

Advanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara, Masahiro Kusano, Ayako Ikeda, Toshio Osada, Makoto Watanabe   +4 more
wiley   +1 more source

FEATURES OF THE SHEAR ELASTICITY RELAXATION OF METALLIC GLASSES

Конденсированные среды и межфазные границы, 2019
Purpose. The work is aimed at a determination of the regularities of the changes of the shear elasticity occurring upon structural relaxation of metallic glasses. Methods and methodology.
Mitrofanov Yuriy P.
doaj   +1 more source

Applying the fractional derivative Zener model to fitting the time-dependent material viscoelasticity tested by nanoindentation

Biosurface and Biotribology, 2018
Material viscoelasticity is of particular importance for polymers, biotissues and many others, due to the significant influence not only on the elastic response of structures, but also on their failure mechanism in actual applications. In this study, the
Long Fei Wei, Wei Li, Zhi Qiang Feng, Jian Tao Liu   +3 more
doaj   +1 more source

Spectroscopic analysis for electric and magnetic properties of manganese doped cobalt nanoferrite

Results in Physics, 2020
The investigated samples of manganese doped cobalt nanoferrites were prepared by the conventional solid-state reaction route using a planetary ball milling technique.
M.Z. Ahsan, M.A. Islam, A.A. Bally, F.A. Khan   +3 more
doaj   +1 more source