Results 31 to 40 of about 6,236,215 (252)

Characterization of mechanical damage in granite [PDF]

open access: yesFracture and Structural Integrity, 2014
This paper aims to illustrate the use of infrared thermography as a non-destructive and non-contact technique to observe the phenomenological manifestation of damage in granite under unconfined compression. It allows records and observations in real time
Minh-Phong Luong, Mehrdad Emami
doaj   +1 more source

Quantitative characterization of coal mining damage and its application in numerical simulation

open access: yes矿业科学学报, 2023
Coal seam mining causes deformation, fracture and migration of overlying rock, further leading to the surface subsidence and ecological damage, which are the main manifestations of mining damage.Quantitatively characterize mining damage is the key to ...
Zhang Cun   +5 more
doaj   +1 more source

Experimental characterization and numerical modeling of micromechanical damage under different stress states [PDF]

open access: yes, 2013
The use of HSLA steels for the manufacture of automotive components is interesting from an engineering point of view. This family of steels, while possessing high strength, also has good formability and can be used in forming manufacturing processes.
ACHOURI, Mohamed   +3 more
core   +5 more sources

Development and Production of Artificial Test Swarf to Examine Wear Behavior of Running Engine Components—Geometrically Derived Designs

open access: yesJournal of Manufacturing and Materials Processing, 2022
Subtractive manufacturing processes are usually accompanied by the occurrence of tiny flakes and swarf, which later on cause severe wear and damage, especially in moving components such as rolling or sliding bearings, pistons, etc. However, up until now,
Patrick Brag   +5 more
doaj   +1 more source

Damage characterization in waveguides with ultrasonic shear waves [PDF]

open access: yes, 2015
Damage can be viewed as a continuum discontinuity. In order to identify and quantify damage, the present study investigates the dependence of reflection and transmission coefficients from a discontinuity in a waveguide using a finite element model.
ACHILLOPOULOU, DIMITRA   +2 more
core   +1 more source

Ductile damage evolution law for proportional and non-proportional loading conditions [PDF]

open access: yesFracture and Structural Integrity, 2019
The characterization of ductile damage evolution, and its description, have been the object of extensive research in the continuum damage mechanic field.
Riccardo Fincato   +2 more
doaj   +1 more source

A novel damage characterization approach for laminated composites in the absence of material and structural information

open access: yes, 2020
Laminated composites have been increasingly used in structural components. However, transverse impact to a composite laminate can cause initial damage such as notches and delamination, jeopardizing the integrity and safety of composite laminated ...
M. Cao   +5 more
semanticscholar   +1 more source

Reducing AC impedance measurement errors caused by the DC voltage dependence of broadband high-voltage bias-tees [PDF]

open access: yes, 2007
During the AC impedance characterization of devices, from the kHz-range up to the GHz-range, accuracy can be lost when a DC voltage is applied. Commercial high-voltage broadband bias-tees are often voltage-dependent, which can cause inaccuracies at low ...
Reimann, K.   +2 more
core   +2 more sources

High temperature fatigue of carbon/polyimide 8-harness satin woven composites. Part I: Digital Image Correlation and Micro-Computed Tomography damage characterization

open access: yes, 2020
This paper focuses on the experimental high temperature fatigue of Carbon/polyimide 8-harness satin woven composite materials. Traction-traction (R = 0.1) fatigue tests at 250 °C are carried out on Carbon/polyimide [45]6 8-harness satin woven composites ...
Yannick Pannier, F. Foti, M. Gigliotti
semanticscholar   +1 more source

Mechanical characterization of defects in slickline units (LSUs) operating in oil wells [PDF]

open access: yesCientífica
Oil well activities are affected with catastrophic failures triggered by the deterioration of slickline in different mechanical, inspection and tracing operations. That is why in this work different types of steel line damage (with depths of 0.5, 1 and 1.
Mauricio Arellano Pastrana   +4 more
doaj   +1 more source

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