Results 71 to 80 of about 6,236,215 (252)

Research progress on multi-scale damage of rock

Meitan kexue jishu
Rock damage and rupture is a multi-scale chain damage rupture process from microscopic to mesoscopic to macroscopic. It is essential to clarify the damage characteristics of rock at different scales and establish the quantitative relationships of multi ...
Fengzhen HE, Guichen LI, Jiaguang KAN, Xingliang XU, Xiaowei FENG, Yuantian SUN   +5 more
doaj   +1 more source

Modification of Graphene Properties due to Electron-Beam Irradiation

, 2008
The authors report micro-Raman investigation of changes in the single and bilayer graphene crystal lattice induced by the low and medium energy electron-beam irradiation (5 and 20 keV).
A. A. Balandin, Baranov A. V., D. Teweldebrhan, Lin-Vien D.   +3 more
core   +1 more source

Estimating the fatigue law of asphalt mixtures using a strain sweep test (EBADE test) [PDF]

, 2013
Fatigue characterization of asphalt mixtures is a very important issue. However, existing techniques to that end are expensive and time consuming. For that reason the asphalt technicians have been studying several different methods to reduce the testing ...
Botella Nieto, Ramón, Martínez Reguero, Adriana Haydée, Miró Recasens, José Rodrigo, Pérez Jiménez, Félix Edmundo   +3 more
core  

Evaluation of the esthetic properties of developmental defects of enamel: a spectrophotometric clinical study [PDF]

, 2015
Objectives. Detailed clinical quantification of optical properties of developmental defect of enamel is possible with spectropho- tometric evaluation. Developmental defects of enamel (DDE) are daily encountered in clinical practice. DDE are an alteration
Corridore, Denise, Debora, Pasqualotto, Guerra, Fabrizio, Mazur, Marta Danuta, Nardi, Gianna Maria, Ottolenghi, Livia   +5 more
core   +4 more sources

Acoustic emission characterization of microcracking in laboratory-scale hydraulic fracturing tests

Journal of Rock Mechanics and Geotechnical Engineering, 2018
Understanding microcracking near coalesced fracture generation is critically important for hydrocarbon and geothermal reservoir characterization as well as damage evaluation in civil engineering structures.
Jesse Hampton, Marte Gutierrez, Luis Matzar, Dandan Hu, Luke Frash   +4 more
doaj   +1 more source

Interpreting fatigue tests in hot mix asphalt (HMA) using concepts from viscoelasticity and damage mechanics

Transportes, 2015
The upcoming Brazilian asphalt pavement design method is likely to recommend, in a more basic level, the controlled force indirect tensile fatigue test as a tool for asphalt mixture fatigue characterization.
Lucas Feitosa de Albuquerque Lima Babadopulos, Jorge Barbosa Soares, Verônica Teixeira Franco Castelo Branco   +2 more
doaj   +1 more source

In-situ characterization of radiation hardness of scintillating targets using heavy ion beams [PDF]

EPJ Web of Conferences
Scintillating materials are of interest for numerous applications related to ionizing radiation. Exposure to radiation induces damage in these materials, resulting in degradation of their scintillation properties.
Saifulin Maxim, Boutachkov Plamen, Kindler Birgit, Lommel Bettina, Walasek-Höhne Beata   +4 more
doaj   +1 more source

Cryo-focused ion beam preparation of perovskite based solar cells for atom probe tomography [PDF]

, 2013
Focused-ion beam lift-out and annular milling is the most common method used for obtaining site specific specimens for atom probe tomography (APT) experiments and transmission electron microscopy.
І.Г. Леонов, А.Є. Присяжний, В.А. Присяжний, Д.С. Сидоренко, И.Г. Леонов, А.Е. Присяжный, В.А. Присяжный, Д.С. Сидоренко, I.G. Leonov, A.Y. Prisyazhniy, V.A. Prisyazhniy, D.S. Sidorenko   +11 more
core   +2 more sources

Characterizing mechanical effects of aging damage [PDF]

, 1998
This is the final report of a two-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The goal was to develop and apply several different experimental and theoretical/computational tools to better understand physical and chemical aging phenomena in plastic-bonded high explosives, and to ...
Sewell, T. D., Chen, S. P., Schoonover, J. R., Trent, B. C., Howe, P. M., Hjelm, R. P., Browning, R. V.   +6 more
openaire   +2 more sources

Determination of Damage Constant and Critical Damage by the Combined Experiment and FEM Using the Reference Processes

Metals
The practical characterization algorithm is presented to find the optimized damage constants and critical damages of the traditional damage models formulated by some unknown damage constants. The flow characterization of the material SWCH45F is conducted
Boseung Hong, Hyeonmin Lee, Seokmoo Hong, Mansoo Joun   +3 more
doaj   +1 more source