Results 61 to 70 of about 29,288 (264)

Review of the fracture toughness approach

open access: yesDental Materials, 2010
Dental adhesives are usually tested in shear or tension even though neither of these approaches measures the local stress triggering failure. Because the stress level varies extensively over the bonded surface, it seems as a fracture mechanics approach would be more appropriate.
College of Dentistry, Department of Operative Dentistry, University of Florida, Box-J-100405 JHMHC, Gainesville, FL 32610-0405, United States ( host institution )   +1 more
openaire   +3 more sources

A Dislocation Perspective on Strength and Toughness in Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Dislocations in ceramics enjoy a long but yet under‐appreciated history. The three research waves for dislocations in ceramics highlight the topic evolution over the last 90 years. This review focuses on the impact of dislocation on strength and toughness in ceramics.
Xufei Fang
wiley   +1 more source

STUDY ON THE DETERMINATION METHOD OF CONSTRAINT DEPENDENT FRACTURE TOUGHNESS OF STRUCTURE

open access: yesJixie qiangdu, 2017
The fracture toughness of material are affected by the constraint at crack tip. In order to assess the structural integrity of cracked structure accurately,it needs to obtain the constraint dependent fracture toughness. In this paper,based on the unified
YANG Jie, WANG Lei
doaj  

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

open access: yesAdvanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim   +3 more
wiley   +1 more source

In vitro comparative evaluation of the effect of two different fiber reinforcements on the fracture toughness of provisional restorative resins

open access: yesIndian Journal of Dental Research, 2012
Background: Fracture of provisional fixed partial denture (FPD) may jeopardize the success of provisional prosthodontic treatment phase and cause patient discomfort.
Vaibhav D Kamble, Rambhau D Parkhedkar
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

open access: yesAdvanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal   +3 more
wiley   +1 more source

Electrified Damage in Motion Systems

open access: yesAdvanced Engineering Materials, EarlyView.
The electrified damage in motion systems is a fundamental framework presenting the degradation pathway arising from the coupling of electrical energy transport with mechanical contact and interfacial chemistry. The framework positions electrified damage as a distinct degradation regime with unique characteristic surface morphologies and failures of ...
M. Humaun Kabir   +2 more
wiley   +1 more source

Experimental Study of Size Dependence of Fracture Toughness of PMMA

open access: yes工程科学与技术, 2006
:In order to study the size dependence of the fracture toughness, pure mode I and pure model Ⅱ fracture tests for polymethyl methacrylate (PMMA) were performed under quasi static loading by using central cracked circular disk specimen.
doaj  

Mechanical Behavior and Fracture Mechanisms of MXene/PVDF Nanocomponsites: In Situ Characterization and Multiscale Analysis

open access: yesAdvanced Functional Materials, EarlyView.
Multiscale experiments and modeling reveal how Ti3C2Tx MXene nanosheets reinforce PVDF nanocomposites. An optimal MXene loading (∼1 wt.%) nearly doubles tensile strength through efficient stress transfer, flake alignment, and crack‐deflection mechanisms, transforming ductile polymer behavior into a controlled multi‐stage fracture pathway which aligns ...
Bita Soltan Mohammadlou   +5 more
wiley   +1 more source

Fabrication and comparison of interlaminar fracture toughness behaviour of glass epoxy composites with recycled milled Kevlar-carbon hybrid fillers

open access: yesHeliyon
Current research uses a novel recycled milled carbon (rmCF), recycled milled Kevlar (rmKF), and innovative Hybrid fillers (rmHF) of both to increase glass/epoxy composite laminate delamination resistance.
Indhumathi Elango   +2 more
doaj   +1 more source

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