Results 51 to 60 of about 401,588 (285)

Dynamic Precipitation during High‐Pressure Torsion of a Magnesium–Manganese Alloy

Advanced Engineering Materials, EarlyView.
An ultrafine‐grained alloy is produced by high‐pressure torsion of solutionized Mg–1.35 wt% Mn. Precipitation of nanometer‐scale Mn particles during deformation provides pinning sites. This prevents the formation of a bimodal grain structure and results in a finer grain size than for pure Mg.
Julian M. Rosalie, Anton Hohenwarter
wiley   +1 more source

HYBRID TECHNIQUES TO SOLVE OPTIMIZATION PROBLEMS IN EIT

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2017
This paper presents the hybrid algorithm for identification the unknown shape of an interface to solve the inverse problem in electrical impedance tomography. The conductivity values in different regions are determined by the finite element method.
Tomasz Rymarczyk, Paweł Tchórzewski
doaj   +1 more source

Maximum principle for the finite element solution of time dependent anisotropic diffusion problems

, 2013
Preservation of the maximum principle is studied for the combination of the linear finite element method in space and the $\theta$-method in time for solving time dependent anisotropic diffusion problems. It is shown that the numerical solution satisfies
Huang, Weizhang, Li, Xianping
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Recursive integral method for transmission eigenvalues

, 2015
Recently, a new eigenvalue problem, called the transmission eigenvalue problem, has attracted many researchers. The problem arose in inverse scattering theory for inhomogeneous media and has important applications in a variety of inverse problems for ...
Huang, Ruihao, Struthers, Allan A., Sun, Jiguang, Zhang, Ruming   +3 more
core   +1 more source

On the Impact Energy Absorption of an Advanced High‐Strength Bilayer Steel Composite Consisting of Carbide‐Free Bainitic Steel and High‐Mn Twinning‐Induced Plasticity Steel

Advanced Engineering Materials, EarlyView.
Excellent combinations of strength and impact toughness are obtained in a bilayer composite of high‐strength carbide‐free bainitic (CFB) steel and high‐ductility twinning‐induced plasticity (TWIP) steel. The composite absorbs energy at small strains when the notch is placed on the TWIP side and at high strains when the notch is placed on the CFB side ...
Kendra Hawke, Xiaogang Li, Amir Partovi, Colin Scott, Fateh Fazeli, Hatem Zurob   +5 more
wiley   +1 more source

Finite Element Method on Shape Memory Alloy Structure and Its Applications

Chinese Journal of Mechanical Engineering, 2019
It is significant to numerically investigate thermo-mechanical behaviors of shape memory alloy (SMA) structures undergoing large and uneven deformation for they are used in many engineering fields to meet special requirements.
Bo Zhou, Zetian Kang, Zhiyong Wang, Shifeng Xue   +3 more
doaj   +1 more source

Research on inverse identification of johnson-cook constitutive parameters for turning 304 stainless steel based on coupling simulation

Journal of Materials Research and Technology, 2023
The constitutive model plays a decisive role in the accuracy and reliability of the simulation results. Because the material flow characteristics obtained by the traditional experimental method are difficult to describe thermoplastic deformation behavior
Zichuan Zou, Lin He, Tao Zhou, Wenqian Zhang, Pengfei Tian, Xiaorong Zhou   +5 more
doaj   +1 more source

Numerical studies of the Lagrangian approach for reconstruction of the conductivity in a waveguide

, 2017
We consider an inverse problem of reconstructing the conductivity function in a hyperbolic equation using single space-time domain noisy observations of the solution on the backscattering boundary of the computational domain.
A. N. Tikhonov, Bjorn Engquist, C Bellis, Gary C. Cohen, HD Bui, HD Bui, Heinz W. Engl, L Beilina, L Beilina, L Beilina, L Beilina, L Beilina, M Cristofol, MV Klibanov, O Pironneau, OA Ladyzhenskaya, SC Brenner, SN Fata, YT Chow   +18 more
core   +1 more source

Identification of plastic constitutive parameters at large deformations from three dimensional displacement fields [PDF]

, 2012
The aim of this paper is to provide a general procedure to extract the constitutive parameters of a plasticity model starting from displacement measurements and using the Virtual Fields Method.
A Bertram, A Germaneau, A Gorry, A Savitzky, AJ Romano, AJ Romano, AP Karafillis, B Plunkett, BK Bay, C Franck, D Banabic, D Mohr, E Verhulp, F Barlat, F Barlat, F Latourte, F Pierron, F Pierron, FA Nichols, Fabrice Pierron, G Dhondt, G Losilla, GZ Voyiadjis, H Tao, H Vegter, HP Feigenbaum, J Kajberg, KS Zhang, M Brunet, M Darrieulat, M Gates, M Grédiac, M Grédiac, M Rossi, Marco Rossi, MHH Meuwissen, N Tvergaard, O Cazacu, OC Zienkiewicz, R Fletcher, R Hill, R Hill, R Mahnken, S Atay, S Avril, S Avril, S Avril, S Avril, S Avril, S Cooreman, S Roux, T Guélon, T Wierzbicki, TS Smith, V Laws, WT Lankford, Y Bai, Y Hwang, Y Ling, YM Hwang   +59 more
core   +5 more sources