Numerical and Experimental Investigation of SS304L Cylindrical Shell with Cutout Under Uniaxial Cyclic Loading

Hatami, Hossein; Shariati, Mahmoud

doi:10.1007/s40997-017-0120-2

Cited by 12 publications

(4 citation statements)

References 45 publications

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“…To clarify this issue, this paper intends to combine experiment with the numerical analysis method. [20][21][22] Systematic detection and analysis of the THz spectrum of different textiles were carried out, and then the targeted wrapped objects were tested by using amino acid (AA) to reveal the effect of fabric packaging on absorption characteristics. Moreover, a preliminarily finite-difference time-domain (FDTD) simulation was performed to calculate the electromagnetic field distribution of the THz wave after passing through the reticular structure of cloth using an adaptive mesh.…”

Section: Introductionmentioning

confidence: 99%

Study on terahertz spectrum variation of inner package with different wrapped objects

Wang

Yan

Liang³

et al. 2023

Journal of Industrial Textiles

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Terahertz (THz) nondestructive testing has emerged as a promising tool for public security check due to its superior detection accuracy and sensitivity for hidden objects under clothing. However, it is unknown if material composition and textile structure of clothing will influence the THz spectrum of the hidden objects. In this paper, the THz time domain spectroscopy (THz-TDS) was used to detect several natural and artificial fabrics containing pure amino acids with characteristic absorption peaks between 0.2 and 1.6 THz. The results show that the absorption peaks of AAs of various cloth materials have different degrees of decrease and redshift. In addition, the absorption peaks of the THz spectrum disappear when the textile structure is destroyed. Moreover, the simulation results also verify that the textile structure has an obvious effect on the THz field distribution. In this sense, it is necessary to analyze the material composition and textile structure when detecting hidden objects under clothing using the THz signal.

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Section: Introductionmentioning

confidence: 99%

Study on terahertz spectrum variation of inner package with different wrapped objects

Wang

Yan

Liang³

et al. 2023

Journal of Industrial Textiles

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“…Numerous studies have been conducted on the mechanical performance of corrugated steel plates in shear walls [22], including the use of novel materials [23] and the investigation of dynamic responses [24,25]. Similar research has also been performed on underground pipes or tunnels that use stiffened steel plates [26].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Corrugated Steel Concrete Prefabricated Support Structure for Underground Engineering

Guo,

Wang,

Zhao

et al. 2023

Sustainability

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The spray anchor system is commonly used for primary support in underground projects due to its advantages such as fast closure of excavation surfaces, tight connection with the surrounding rock, and high early strength. However, this system has several drawbacks, such as severe pollution, poor working conditions, long construction periods, and high labor costs. In response to the concepts of green construction and prefabrication, this study proposes an innovative composite structure consisting of corrugated steel plates and concrete, namely, corrugated steel–concrete (CSC), which is a prefabricated support structure for underground engineering. The proposed system involves on-site corrugated steel plates and concrete, and the concrete is poured into the corrugated steel plates without using shotcrete. This approach mitigates pollution and improves working conditions. After the introduction to the novel structural system, elaborate Abaqus numerical models are developed to investigate the mechanical performance considering full elastoplastic response until failure. The steel–concrete interfacial connections, as a major factor in composite structures, are carefully studied and discussed based on the delicate interfacial contact model. The deformations, stress distributions, and failure types are analyzed. A parametric analysis is also conducted to expand the efficient range. Theoretical analysis is further carried out, and design expressions are proposed, which are verified to be suitable for design considerations.

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“…Results indicated that depth and axial length had greater effects on the ratcheting strain than that of the influence of circumferential angle. Hatami and Shariati 19 evaluated performance of different cyclic hardening models for simulating cyclic behavior of 304L stainless steel cylindrical shells under uniaxial loading. They concluded that, the nonlinear isotropic/kinematic (combined) hardening reasonably simulated the softening behavior of specimens, while the isotropic hardening and linear kinematic hardening were not suitable for simulating ratcheting and softening behavior.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of ratcheting behavior of A234 WPB steel elbow joints including corrosion defects

Moradi

Shariati

Zamani

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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In this paper, ratcheting behavior of intact and corroded 90o elbow pipe specimens of A234 WPB steel is investigated at intrados, crown, and extrados positions. A special fixture was designed and constructed to carry out the fatigue experiments. Then, the effects of fatigue loading parameters (mean and amplitude) and defect depth were examined on ratcheting responses of intact and corroded specimens at intrados, crown, and extrados positions. To simulate the ratcheting behavior of specimens, a finite element analysis was performed based on the combined nonlinear isotropic/kinematic hardening model. As a reasonable agreement was found between the finite element (FE) simulation results and experimental data, the influence of constant internal pressure during the cyclic loading was examined on ratcheting responses through FE simulation. Results indicated that decreasing the load amplitude was more effective on decreasing the ratcheting strain than that of the mean fatigue load. Moreover, the most critical ratcheting response was associated with the intrados location of the pipe. For defective specimens, decreasing fatigue loading parameters resulted in a shakedown behavior for a defect placed at extrados, while, for the defects at intrados and crown, an increasing behavior was observed for the ratcheting strain. It was revealed that, at extrados position, the ratcheting behavior was arrested up to 1 mm defect depth. The ratcheting strains were increased at intrados and crown by increasing the internal pressure, while they were decreased at extrados.

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Numerical and Experimental Investigation of SS304L Cylindrical Shell with Cutout Under Uniaxial Cyclic Loading

Cited by 12 publications

References 45 publications

Study on terahertz spectrum variation of inner package with different wrapped objects

Study on terahertz spectrum variation of inner package with different wrapped objects

Numerical Simulation of Corrugated Steel Concrete Prefabricated Support Structure for Underground Engineering

Experimental and numerical analysis of ratcheting behavior of A234 WPB steel elbow joints including corrosion defects

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