Results 151 to 160 of about 1,020,842 (201)

Experimental and micro-mechanical analysis of the mechanical and transport properties of mortar containing heat-induced micro-cracks

Cement and Concrete Composites, 2010
International audienceThis paper focuses on the effect of micro-cracks induced by a slow heating/cooling process (also called heat-treatment) in a mortar, upon its poro-elastic properties under drained hydrostatic compression, and upon its intrinsic ...
Catherine A Davy, J F Shao, Frédéric Skoczylas   +2 more
exaly   +2 more sources

Micro cracks distribution and power degradation of polycrystalline solar cells wafer: Observations constructed from the analysis of 4000 samples [PDF]

Renewable Energy, 2020
In this paper, the impact of Photovoltaic (PV) micro cracks is assessed through the analysis of 4000 polycrystalline silicon solar cells. The inspection of the cracks has been carried out using an electron microscopy, which facilitate the detection of ...
Mahmoud Dhimish
exaly   +2 more sources

Nonlinear effects of micro-cracks on long-wavelength symmetric Lamb waves

Ultrasonics, 2018
For an elastic medium containing a homogeneous distribution of micro-cracks, an effective one-dimensional stress-strain relation has been determined with finite element simulations.
Marek Rjelka, Bernd Kohler
exaly   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

Transformation toughening in ceramic with martensites or micro-cracks

International Journal of Engineering Science, 1991
We present a method of calculating the decrease of stress intensity factor without considering the microstructural details or performing an incremental analysis. Regardless of the history of loading and unloading, the current crack opening displacement is all the information needed for the calculation.
Gao, Zhanjun, Mura, Toshio
openaire   +1 more source

Influence of initial micro-crack damage on strength and micro-cracking behavior of an intrusive crystalline rock

Bulletin of Engineering Geology and the Environment, 2018
Rocks inherently contain some micro-cracks. The existence of initial micro-cracks introduces weakness to the rock specimen and hence affects the strength and deformation behavior of rocks. This paper numerically investigates the influence of initial micro-crack damage on the strength and deformation behavior and the associated micro-cracking process of
Peng, Jun, Wong, Louis Ngai Yuen, Liu, Guang, Teh, Cee Ing   +3 more
openaire   +2 more sources

Simulation of Polycrystalline Ceramics with Micro-Cracks

MRS Proceedings, 2002
AbstractThe micro FEM model, which was considered in the middle bottom of a four-point bending macro FEM model, was constructed from a SEM micrograph of an Al2O3-10vol%ZrO2 ceramic, in which the crystallographic information was given to each grain randomly. One micro-crack was introduced in the micro FEM model as a basic case to simulate the four-point
Jianwu Cao, Yoshihisa Sakaida, Yasuo Nagano, Hiroshi Kawamoto   +3 more
openaire   +1 more source

Ultrasonic Evaluation of Ceramics With Micro-Cracks

Emerging Technology in Fluids, Structures, and Fluid Structure Interactions, 2003
Materials used in high-pressure vessels may be subjected to rapid temperature change, which may induce micro-cracks on the surface and into material. The growth of micro-cracks is detrimental to facility life. Chromium carbide (Cr3C2) has been proved to be a potential structural material for toughening alumina in biomedical and industrial applications ...
Shih-Jeh Wu, Ching-An Jeng, Chen-Ming Kuo   +2 more
openaire   +1 more source

A continuum model of micro-cracks in concrete

Continuum Mechanics and Thermodynamics, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bongué Boma, Malika, Brocato, Maurizio
openaire   +2 more sources

On the sink strength and permeability of micro-cracked arrays

Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2003
Summary: The effective absorption coefficient (the sink strength or the trapping constant) \(\gamma\) of a statistically isotropic random array of penny-shaped cracks is considered. The cracks are treated as oblate spheroids with vanishing aspect ratio.
openaire   +2 more sources

Hydrogen in steel—the stability of micro-cracks

Acta Metallurgica, 1962
Abstract The stability of a wedge shaped microcrack under constant external stress and internal pressure is examined. Some modifications are found necessary in the original analysis of the stability under external stress only; these reinforce the conclusion that a crack formed under tension by the pile-up mechanism will grow unless damped by plastic ...
B.A Bilby, J Hewitt
openaire   +1 more source