Results 51 to 60 of about 9,925 (261)

Using Cohesive Zone Model to Simulate the Hydraulic Fracture Interaction with Natural Fracture in Poro-Viscoelastic Formation

Energies, 2019
Hydraulic fracturing is a widely used production stimulation technology for conventional and unconventional reservoirs. The cohesive element is used to explain the tip fracture process.
Yu Suo, Zhixi Chen, Hao Yan, Daobing Wang, Yun Zhang   +4 more
doaj   +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

INVESTIGATION ON FINITE ELEMENT MODELING METHOD OF WITH TRIPLE JUNCTION POLYCRYSTALLINE INTERGRANULAR FRACTURE

Jixie qiangdu, 2018
Cohesive zone model was used to simulate polycrystalline intergranular fracture at the grain level model,the finite element model build-ing reflected the actual situation is a difficult point.In this paper,Mixed Programming of Matlab,Python and Abaqus,An
SHI JunLin, ZHAO JianPing
doaj  

Numerical simulation of chopped fiber interlaminar toughening of flax fiber/epoxy composites

Journal of Aeronautical Materials
Flax fiber/epoxy composites have attracted extensive attention in aviation applications due to the advantages of low density，remarkable mechanical properties and environmental friendliness.
YU Benze, LI Yan, TU Haoyun, ZHANG Zhongsen   +3 more
doaj   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Dataset on simulated microbond tests using finite element method: Simulation cases about different geometrical influences, material behavior, damage evolution, and element meshes

Data in Brief
This data article provides an extensive dataset obtained from finite element (FE) simulations of microbond (MB) tests. The simulations cover a wide range of structural effects and artifacts that influence the results of the MB tests.
Royson Donate Dsouza, Donato Di Vito, Jarno Jokinen, Mikko Kanerva   +3 more
doaj   +1 more source

Cohesive zone modeling of interfacial stresses in plated beams

International Journal of Solids and Structures, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
DE LORENZIS, Laura, ZAVARISE, Giorgio
openaire   +3 more sources

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

A plastic analysis of Griffith crack problem in 1D hexagonal piezoelectric quasicrystals

Scientific Reports
The elastic–plastic fracture mechanics of one-dimensional (1D) hexagonal piezoelectric quasicrystals (QCs) Griffith crack under a small-scale yielding is studied.
Jing Zhang, Guanting Liu, Haitao Liao
doaj   +1 more source

Development of a Fatigue Model for Low Alloy Steels Using a Cycle-Dependent Cohesive Zone Law

Advances in Mechanical Engineering, 2014
A fatigue model for SAE 4130 steels is developed using a cycle-dependent cohesive zone law. Reduction of fracture energy and degradation of stiffness are considered to describe failure resistance after certain number of cycles.
Kyungmok Kim, Jaewook Lee, Joo-Ho Choi
doaj   +1 more source