Results 1 to 10 of about 1,842 (115)

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

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

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

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

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   +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

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

Nonlinear Lamb Wave Micro-Crack Direction Identification in Plates with Mixed-Frequency Technique

open access: yesApplied Sciences, 2020
This paper investigates the direction identification of micro-cracks with nonlinear components generated by Lamb wave with frequency-mixing technique. Three-dimensional finite element simulations were carried out to investigate the interaction mechanism ...
Liqiang Guan   +3 more
doaj   +1 more source

Crack source and propagation of AZ91-0.9Gd alloy

open access: yesJournal of Materials Research and Technology, 2022
Formation process of main compounds in AZ91-0.9Gd alloy was studied, and main crack sources and fracture mechanism were analyzed. Experimental results show that AZ91-0.9Gd alloy is mainly composed of α-Mg, Mg17Al12, bulk Al2Gd compound and a small amount
Huisheng Cai   +5 more
doaj   +1 more source

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