Results 1 to 10 of about 46,341 (265)
Damage severity for cracked simply supported beams
Fracture and Structural Integrity, 2021 This paper investigated the static and dynamic behaviors of isotropic cracked simply supported beam using finite element analysis (FEA), ANSYS software.
Ehab Samir Mohamed Mohamed Soliman
doaj +4 more sources
Localization of Transversal Cracks in Sandwich Beams and Evaluation of Their Severity [PDF]
Shock and Vibration, 2014 An algorithm to assess transversal cracks in composite structures based on natural frequency changes due to damage is proposed. The damage assessment is performed in two steps; first the crack location is found, and afterwards an evaluation of its ...
G. R. Gillich +3 more
doaj +4 more sources
Experimental study on the inhibitory effect of bolting position on crack propagation in cavity-containing sandstone. [PDF]
PLoS ONEThis study systematically investigated the effects of seven bolt anchorage positions on the mechanical behavior and failure of single-hole sandstone specimens using uniaxial compression tests and PFC2D simulations, with emphasis on crack-propagation ...
Dong Zhu +4 more
doaj +2 more sources
Modal displacement vs Curvature functions as damage identifier for masonry structures
Alexandria Engineering Journal, 2023 Identification of crack location and severity is a vital step in assessment of deteriorated structures. The current research addresses the sensitivity of using modal displacement, modal curvature, and modal strain energy functions as Damage Indices (D.I ...
A.M. Anwar, A.M.A. Abd Elwaly
doaj +1 more source
Research on Damage Identification of Nonuniform Microcrack in Beam Structures
Advances in Civil Engineering, 2021 Nonuniform microcrack identification is of great significance in mechanical, aerospace, and civil engineering. In this study, the nonuniform crack is simplified as a semielliptical crack, and simplified calculation methods are proposed for damage ...
Jia Guo, Deqing Guan, Yanran Pan
doaj +1 more source
Adaptive Probabilistic Optimization Approach for Vibration-Based Structural Health Monitoring
Signals, 2021 This paper presents a novel adaptive probabilistic algorithm to identify damage characteristics by integrating the use of the frequency response function with an optimization approach.
Hussain Altammar, Sudhir Kaul
doaj +1 more source
DIM for Detecting Cracks in Masonry Piers with Different Crack Patterns [PDF]
JES: Journal of Engineering Sciences, 2022 In the Framework of identifying defects in structures, Damage Index Method (DIM) is considered one of the trustable tools used intensively. In the present research, DIM – modal displacement based - was applied on experimental data to detect damage for ...
Ahmed Anwar +2 more
doaj +1 more source
Developments in the Built Environment, 2023 Beginning and development of cracks reduce the structural performance and durability, thus a novel strategy is required to prevent such kind of occurrence. The incorporation of bacteria in the concrete system is likewise a technique to prevent the growth
Krishna Kumar Maurya +2 more
doaj +1 more source
Mode I stress intensity factor with various crack types
Fracture and Structural Integrity, 2022 Presence of cracks in mechanical components needs much attention, where the stress field is affected by cracks and the propagation of cracks may be occurred causing the damage.
Ehab Samir Mohamed Mohamed Soliman
doaj +1 more source
Beam Damage Assessment Using Natural Frequency Shift and Machine Learning
Sensors, 2022 Damage detection based on modal parameter changes has become popular in the last few decades. Nowadays, there are robust and reliable mathematical relations available to predict natural frequency changes if damage parameters are known.
Nicoleta Gillich +6 more
doaj +1 more source