Results 21 to 30 of about 37,565 (257)

Effect of Aluminized Modified PS - PVD 7YSZ Thermal Barrier Coating on the Mechanical Properties of DZ125 Alloy [PDF]

open access: yesCailiao Baohu, 2022
Plasma spraying-physical vapor deposition(PS-PVD) process was applied to prepare aluminized modified thermal barrier coatings(TBCs) on the DZ125 superalloy substrate.
LUO Na, HE Bing, ZHANG Xiao-feng
doaj   +1 more source

Nonlocal Criteria for Brittle and Quasi-Brittle Fracture of Geomaterials and Rocks

open access: yesE3S Web of Conferences, 2018
Nonlocal criteria are used for prediction materials and rock mass failure near stress concentrations (pores, faults, openings, excavations). A common property of nonlocal fracture criteria is the introduction of the intrinsic material length ...
Suknev Sergey
doaj   +1 more source

Grouting mechanism in fractured rock considering slurry-rock stress coupling effects

open access: yesYantu gongcheng xuebao, 2018
The slurry-rock stress coupling effects have a great influence on the grouting process in fractured rock. In order to describe the dynamic grouting process, a piecewise equation is used to govern the deformation process of rock fissure, and a theoretical
ZHANG Lian-zhen 1, ZHANG Qing-song 2, LIU Ren-tai 2, LI Shu-cai 2
doaj   +1 more source

Molecular Dynamics-Based Cohesive Zone Model for Mg/Mg17Al12 Interface

open access: yesMetals, 2020
The fracture of the Mg/Mg17Al12 interface was investigated by molecular dynamics simulations. The interface crack extends in a brittle manner without noticeable plasticity.
Xiao Ru Zhuo, Aibin Ma
doaj   +1 more source

A nonlinear hydraulic fracture propagation criterion considering the fracture process zone

open access: yesInternational Journal of Mining Science and Technology
The linear elastic hydraulic fracture criterion is not applicable to deep reservoirs when nonlinear behavior is present over an extensive zone at the fracture tip.
Senlin Luo   +5 more
doaj   +1 more source

Light‐Assisted 3D Printing Techniques and Photocrosslinking Strategies: Recent Advances in Musculoskeletal Tissue Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
In this review, the current state of light‐assisted 3D printing as it pertains to engineering musculoskeletal tissues including bone, cartilage, skeletal muscle, tendon, and ligaments is summarized. Common printing techniques, photoreactive materials, and study design choices are compiled and reviewed.
Meagan Morgan, Bin Zhang, Roger Narayan
wiley   +1 more source

Identifying the real fracture hidden in rock microcrack zone by acoustic emission energy

open access: yesInternational Journal of Mining Science and Technology
Identifying the real fracture of rock hidden in acoustic emission (AE) source clusters (AE-depicted microcrack zone) remains challenging and crucial. Here we revealed the AE energy (representing dissipated energy) distribution rule in the rock microcrack
Yuekun Xing   +8 more
doaj   +1 more source

Water Inrush Mechanism in Fault Fracture Zone Based on a Nonlinear Mechanical Model of Three Flow Fields

open access: yesGeofluids, 2023
Water inrush in the working face caused by seepage instability of fault fracture zone is a major disaster which threatens the safety production in a coal mine. Based on the principle of fluid mechanics, a nonlinear mechanical model with three flow fields
Hou Dian-chen   +4 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

open access: yesAdvanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora   +4 more
wiley   +1 more source

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