Results 1 to 10 of about 24,785 (260)

Experimental and Numerical Investigation of the Micro-Crack Damage in Elastic Solids by Two-Way Collinear Mixing Method [PDF]

open access: yesSensors, 2021
This study experimentally and numerically investigated the nonlinear behavior of the resonant bulk waves generated by the two-way collinear mixing method in 5052 aluminum alloy with micro-crack damage.
Hongjun Liu   +5 more
doaj   +2 more sources

Characterization of Micro-Crack Orientation in a Thin Plate Using Quasi-Static Component Generated by Incident Ultrasonic Lamb Waves [PDF]

open access: yesSensors
The directivity of the quasi-static component (QSC) is quantitatively investigated for evaluating the orientation of a micro-crack buried in a thin solid plate using the numerical simulation method. Based on the bilinear stress–strain constitutive model,
Liang Zhao   +9 more
doaj   +2 more sources

Research on Synthetic Data Methods and Detection Models for Micro-Cracks [PDF]

open access: yesSensors
Micro-crack detection on concrete surfaces is challenging because labeled micro-crack data are scarce, crack cues are extremely weak (often only a few pixels wide), and complex backgrounds (e.g., non-uniform illumination, shadows, and stains) degrade ...
Yaotong Jiang   +3 more
doaj   +2 more sources

Crack Contour Modeling Based on a Metaheuristic Algorithm and Micro-Laser Line Projection [PDF]

open access: yesBiomimetics
Currently, bio-inspired metaheuristic algorithms play an important role in computer vision for assessing surface cracks. Also, manufacturing industries need non-destructive technologies based on biomimetics theory for characterizing micro-crack contours ...
J. Apolinar Muñoz Rodríguez
doaj   +2 more sources

Analisis Efektivitas Kemampuan Pulih Mandiri Micro Crack pada Self-Healing Concrete

open access: yesRekayasa Sipil, 2023
The development of Self-Healing Concrete technology is a solution to overcome anomalies in concrete structures such as Micro Crack and is a preventive measure to prevent concrete damage.
Erfin Setiawan   +2 more
doaj   +1 more source

Buckling of cracked micro- and nanocantilevers

open access: yesActa Mechanica, 2022
AbstractThe size-dependent buckling problem of cracked micro- and nanocantilevers, which have many applications as sensors and actuators, is studied by the stress-driven nonlocal theory of elasticity and Bernoulli–Euler beam model. The presence of the crack is modeled by assuming that the sections at the left and right sides of the crack are connected ...
Darban, H, Luciano, R, Darban, R
openaire   +2 more sources

Influence of crack micro-roughness on the plasticity-induced fatigue propagation in high strength steel [PDF]

open access: yesFracture and Structural Integrity, 2017
This article deals with the locally multiaxial fatigue behaviour of high strength steel. To this end, the influence of the cracking path deflections (at the micro level) on the plasticity-induced fatigue crack growth is analyzed.
J. Toribio, J.C. Matos, B. González
doaj   +2 more sources

Theoretical and Numerical Study of Eddy Current Pulsed Thermography to Detect Damage of Deep-Sea Manned Pressure Hull

open access: yesJournal of Marine Science and Engineering, 2023
At present, research on pressure hull safety is mainly focused on the constitutive model of material properties and the evaluation model of structural parameters aiming at fatigue life prediction.
Yu Wu   +3 more
doaj   +1 more source

Influences of normal fault dislocation on response of surrounding rock and lining system based on discrete-continuous coupling simulation

open access: yesYantu gongcheng xuebao, 2020
The seismic damage records show that the destruction of tunnel structure mostly occurs in the fault zone with surrounding rock mass of poor quality and great changes in stratigraphic conditions.
MA Ya-lina 1, 2, CUI Zhen 1, 2, SHENG Qian 1, 2, ZHOU Guang-xin 1, 2, WANG Tian-qiang 3
doaj   +1 more source

A research on the mechanism and model of surface micro-damage in grinding hardening

open access: yesAdvances in Mechanical Engineering, 2021
Grinding hardening can obtain hardening effect besides fine machining effect on the surface of workpiece. A certain degree of surface micro-damage will be formed during grinding hardening process which mainly contains micro-crack, melting coating ...
Xiaoliang Shi   +2 more
doaj   +1 more source

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