Results 41 to 50 of about 2,431 (185)

In Vitro Mechanical Tests for Modern Dental Ceramics

open access: yesFrontiers in Dentistry, 2006
The fracture resistance of all-ceramic restorations is one of the major concerns in clinical applications of these materials. Before initiating a time-consuming and costly clinical investigation, an in vitro study can help to estimate the in vivo ...
L. Sadighpour   +2 more
doaj  

Crack Process Investigation in Gears Under Single Tooth Bending Fatigue Condition Using Infrared Thermography and 3D XFEM Numerical Models

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT The present study proposes a combined approach of infrared thermography and 3D XFEM numerical models for crack process investigation in mechanical components such as gears. Over the years, fatigue crack analysis based on energy dissipations in the form of heat generated during fatigue tests has been widely reported, although mainly limited to ...
Luca Corsaro   +3 more
wiley   +1 more source

Biography of Are Tsirk (1937-2015): Flintknapper and scholar

open access: yesJournal of Lithic Studies, 2015
Are Tsirk was as much a scholar as he was a flintknapper. These disciplines were intertwined and expressed in his experimental research, by way of his exploration of fractography, and his replication of stone tools which spanned the archaeological record
Steve Adams
doaj   +1 more source

Breakage Characterization of Magnetite under Impact Loads and Cyclic Impact Loading

open access: yesEnergies, 2020
A series of impact compression tests were conducted to study the breakage characteristics of magnetite, as well as the impact pressure on its strain rate and dynamic compressive strength.
Liang Si, Yijun Cao, Guixia Fan
doaj   +1 more source

Experimental Study on the Fatigue Behavior of Ti‐6Al‐4 V Bolted Joints Containing Burrs

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT One‐way assembly accelerates aerospace manufacturing operations but risks leaving drilling burrs within mechanical joints. The detrimental impact of burrs on fatigue strength is widely recognized in the literature, but the mechanisms driving this “knock‐down” remain unclear. This investigation focused on mechanically fastened Ti‐6Al‐4 V single‐
Santiago Frutos Taravillo   +6 more
wiley   +1 more source

Indirect Tensile Test of Layered Marble and Analysis of Fracture Morphology and Mechanism

open access: yes工程科学与技术, 2014
:With the aid of MTS815,large scale laser profilometer and SEM testing system,indirect tensile tests,fractography and meso fracture mechanism analysis were carried out on layered marbles taken from transportation tunnel of JinpinⅡ hydropower station ...
裴建良, 苏立, 刘建锋, 左建平
doaj  

Fractographic Analysis Of Selected Boron Steels Subjected To Impact Testing

open access: yesArchives of Metallurgy and Materials, 2015
In this paper dynamic properties of low-alloy boron steels – Hardox 500, B27 and HTK 900H in delivered state (after hardening and tempering) are considered.
Dudziński W.   +2 more
doaj   +1 more source

Effect of substructure fabrication method and design on the fracture resistance properties of metal–ceramic restorations

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose In metal–ceramic restorations, the substructure fabrication method and design may affect the prognosis of the prosthesis. This study evaluated and compared the fracture resistance of metal–ceramic restorations fabricated with different substructure fabrication methods using two different alloy powders and designs.
Young‐Hoon Lee   +4 more
wiley   +1 more source

Wood Sawdust as a Low‐Cost Filler in Whole‐Tire Reclaimed Rubber: Mechanical Characterization and Factory‐Scale Cost Analysis

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 41, November 5, 2026.
Whole‐tire reclaimed rubber is upgraded with wood sawdust, a carpentry by‐product available at no cost, across loadings from 0 to 20 wt%. At 5 wt%, tensile strength, elongation, hardness, viscosity, and water absorption all stay within commercial specification, and real factory data show an annual production saving near $62,000 with no capital ...
Mohammed S. Matar   +3 more
wiley   +1 more source

Nonwoven rCF/PA6 Thermoplastic Composites: Hybrid Commingled Fibers vs. Powder Impregnation—Effects on Microstructure and Mechanical Properties

open access: yesPolymer Composites, Volume 47, Issue 19, Page 17076-17090, 10 October 2026.
Comparison of powder impregnation and hybrid commingled non‐wovens for PA6/rCF nonwoven composites. The two‐step powder route gives lower voids and higher properties, while the single‐step hybrid route is limited by precursor inhomogeneity and high void content.
Gaia Francesca Lupia   +4 more
wiley   +1 more source

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