Results 11 to 20 of about 34,155 (263)

Characterization of Shock Wave Damages in Explosion Welded Mo/Cu Clads

open access: yesMetals, 2021
The shock wave damage during explosive welding has not been reported in a flyer Mo plate of the Mo/Cu clads. However, it would be an inevitable problem in group VI elements. This study was aimed to characterize the shock wave damage in the Mo plate, that
Pradeep Kumar Parchuri   +6 more
doaj   +1 more source

Characterization of surface and subsurface defects induced by abrasive machining of optical crystals using grazing incidence X-ray diffraction and molecular dynamics

open access: yesJournal of Advanced Research, 2022
Introduction: Surface and subsurface defects were easily induced during abrasive machining process of optical crystals due to their high brittleness. Accurate characterization of these defects is the prerequisite for obtaining optical components with ...
Yong Zhang   +5 more
doaj   +1 more source

Propagation of Non-Linear Lamb Waves in Adhesive Joint with Micro-Cracks Distributing Randomly

open access: yesApplied Sciences, 2020
With the advantages of uniform stress transfer and weight reduction, adhesive joints are widely used in engineering. The propagation of non-linear Lamb waves in an adhesive joint with micro-cracks distributing in a random way is systematically ...
Xiaoyang Li   +3 more
doaj   +1 more source

Size effects for micro-fractured bodies under compressive loading [PDF]

open access: yesTheoretical and Applied Mechanics, 2011
A two-scale damage model for micro-fractured media is constructed using the asymptotic homogenization method. At the small-scale level, we consider locally periodic microstructures of two-types: micro-cracks nucleating from pores and wing-type micro ...
Dobrovat A.M.   +3 more
doaj   +1 more source

Particle flow simulation of deformation and failure process of defective rock samples under triaxial compression

open access: yesShuili Shuiyun Gongcheng Xuebao, 2021
To study the influence of dip angle of rock bridge on rock mechanical behavior and crack propagation mechanism, the particle parallel bonding model in the PFC3D code was used to obtain a group of microscopic parameters, which could reflect the ...
WANG Haoran   +2 more
doaj   +1 more source

Dynamic Crack Propagation and Its Interaction With Micro-Cracks in an Impact Problem [PDF]

open access: yesJournal of Engineering Materials and Technology, 2020
AbstractThe dynamic fracture behavior of brittle materials that contain micro-level cracks should be examined when material subjected to impact loading. We investigated the effect of micro-cracks on the propagation of macro-cracks that initiate from notch tips in the Kalthoff–Winkler experiment, a classical impact problem.
Candaş, Adem   +2 more
openaire   +3 more sources

The Influence of Micro Cracks Appearing During Concreting of Road Viaducts and Their Impact on a Frost-Thaw Resistance [PDF]

open access: yesArchives of Civil Engineering, 2020
In the latest period hundreds of concrete viaducts were built in Poland within a short time range. The cases of destruction of concrete road viaducts described by the author in the article concern in the construction of such structures in various parts ...
Józef Jasiczak
doaj   +1 more source

Influence of defects on high-temperature oxidation performance of GH3536 superalloys fabricated by laser powder bed fusion

open access: yesAdditive Manufacturing Letters, 2022
This study investigates the formation of defects and their impact on oxidation behaviour of GH3536 superalloys fabricated by laser powder bed fusion (LPBF).
Shiling Min   +5 more
doaj   +1 more source

Modeling and Experimental Analysis of Roughness Effect on Ultrasonic Nondestructive Evaluation of Micro-crack

open access: yesChinese Journal of Mechanical Engineering, 2021
A high-precision evaluation of ultrasonic detection sensitivity for a micro-crack can be restricted by a corroded rough surface when the surface microtopography is of the same order of magnitude as the crack depth.
Zhe Wang   +5 more
doaj   +1 more source

Source analysis of acoustic emissions during granite strain burst

open access: yesGeomatics, Natural Hazards & Risk, 2019
The acoustic emission (AE) location technique and fault-plane solution method were used to evaluate the temporal-spatial evolution, released energy variation of micro-cracks, and the difference in b-values for different types of micro-cracks during ...
Yang Wang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy