Results 101 to 110 of about 11,713 (257)

The Impact of Cracked Microparticles on the Mechanical and the Fracture Behavior of Particulate Composite [PDF]

open access: yesЖурнал нано- та електронної фізики, 2015
In this investigation a metallic composite with a cracked micro has been investigated using finite element method. Particulate reinforced composite is one of the most favorite composite due to it quit isotopic properties.
Waleed K. Ahmed, Wail N. Al-Rifaie
doaj  

Fracture mechanics of micro samples: Fundamental considerations

open access: yesMaterials & Design, 2018
In this review article we consider the crack growth resistance of micrometer and sub-micrometer sized samples from the fracture mechanics point of view. Standard fracture mechanics test procedures were developed for macro-scale samples, and reduction of ...
R. Pippan, S. Wurster, D. Kiener
doaj   +1 more source

Crack Propagation Model for Reproduction of Crack Paths in Micro-Solder Joints

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 2006
We investigated the mechanism of crack propagation in micro-solder joints in a semiconductor structure and developed a new crack propagation model. In micro-solder joints, solder crack might propagate not only at the interface itself but also near the solder and land interfaces. Conventional crack propagation models based on fracture mechanics, however,
TANTE, Hisashi, TERASAKI, Takeshi
openaire   +2 more sources

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi   +5 more
wiley   +1 more source

Analysis of microstructure and fatigue micromechanisms in cast aluminium piston alloys

open access: yes, 2011
Light vehicle engine pistons have traditionally been cast from near eutectic Al-Si cast alloys due to several favourable functional and processing attributes.
Mbuya, Thomas O, Mbuya, Thomas O.
core  

Micro-crack Growth Mode and Chipping Behavior of HIP Ferrite

open access: yes, 1999
Magnetic head made of polycrystalline ferrite sintered by HIP method is widely used in an audio and video installation. Work damage such as a chipping induced by slicing of ferrite gives rise to the deterioration of an electro-magnetic property of the ...
13084   +6 more
core   +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

Micro-crack Initiation Mechanism of DZ125 Ni-based Alloy During Very High Cycle Fatigue

open access: yes工程科学与技术, 2018
The DZ125 alloy has excellent mechanical, fatigue, and high-temperature behaviors. It has been widely used in high-temperature gas turbine components. Although a lot of researches have been carried out on the fatigue problem of the DZ125 alloy, there are
Luopeng XU, Min ZHOU, Qingyuan WANG
doaj  

Evaluation of Shear-Punched Surface Layer Damage in Three Types of High-Strength TRIP-Aided Steel

open access: yesMetals
The damage properties in the shear-punched surface layer, such as the strain-hardening increment, strain-induced martensite fraction, and initiated micro-crack/void characteristics at the shear and break sections, were experimentally evaluated to relate ...
Koh-ichi Sugimoto   +2 more
doaj   +1 more source

Defect Evolution and Mechanical Performance of Fused Filament Fabrication‐Manufactured 17‐4PH Stainless Steel Revealed by X‐Ray Computed Tomography

open access: yesAdvanced Engineering Materials, EarlyView.
X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky   +3 more
wiley   +1 more source

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