Article
Engineering, Multidisciplinary
Ankang Cheng, Nian-Zhong Chen
Summary: This paper discusses the structural integrity and engineering critical assessment of deep-water subsea pipelines under high pressure/high temperature conditions. A new specified ECA scheme is developed, considering corrosion fatigue and low-cycle fatigue.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2022)
Article
Materials Science, Multidisciplinary
Hsiao Wei Lee, Hamidreza Fakhri, Ravi Ranade, Cemal Basaran, Halina Egner, Adam Lipski, Michal Piotrowski, Stanislaw Mrozinski
Summary: The study developed a model based on Unified Mechanics Theory to predict the fatigue life of pre-corroded steel samples with BCC structure. Experimental verification demonstrated the accuracy of the model in predicting high cycle fatigue life.
MATERIALS & DESIGN
(2022)
Review
Physics, Multidisciplinary
Arieh Ben-Naim
Summary: Time never decreases, but irreversible processes can be reversed with extremely low probability; entropy and the Second Law are timeless.
Review
Engineering, Marine
Baran Yeter, Yordan Garbatov
Summary: This study provides a review of the structural integrity of fixed support structures for offshore wind turbines. It covers the history of fatigue and fracture phenomena, modelling techniques, crack estimation methods, and life prediction models. The study also reviews influential research on structural integrity and reliability, and discusses a risk-based assessment framework.
Article
Multidisciplinary Sciences
J. Ricardo Arias-Gonzalez
Summary: Information theory and thermodynamics have been closely connected in recent years, utilizing the formal equivalence between Shannon entropy and Gibbs entropy. We analyze information transfer in chain-like systems and discover the emergence of reversible and irreversible information through the principle of microscopic reversibility. Our findings have important applications in nanoscale chains and other communication systems.
SCIENTIFIC REPORTS
(2022)
Article
Engineering, Marine
A. Yosri, H. Leheta, S. Saad-Eldeen, A. Zayed
Summary: The fatigue life of structural details in the double side of a tanker ship was investigated using spectral fatigue analysis approach. Stochastic environmental loads were derived and mapped onto a structural finite element model. Stress response and accumulated damage were extracted and estimated using Palmgren-Miner's rule. Effects of various factors such as wave scatter diagrams, reduction of hull girder section modulus, stress concentration factor, corrosion, wave direction, wave spectrum, and operational profile on the accumulated fatigue damage were studied.
Article
Thermodynamics
Tayebeh Modaresi Movahed, Hamed Jalaly Bidgoly, Mohammad Hassan Khoshgoftar Manesh, Hamid Reza Mirzaei
Summary: The study investigates the dynamic changes in volume, temperature gradient, and entropy generation during cancer cell growth, highlighting their correlation with cancer progression. The accuracy of predicting these variables increases when using the ARMA model.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Engineering, Civil
Xu Han, Dan M. Frangopol
Summary: Fatigue cracking is a common issue for steel bridges. Structural health monitoring techniques can provide reliable information on stress states at fatigue-prone details. However, when considering corrosion, relying solely on monitoring information may not be enough to accurately estimate the impact of corrosion on fatigue damage.
ENGINEERING STRUCTURES
(2022)
Article
Chemistry, Physical
Hsiao Wei Lee, Milos B. Djukic, Cemal Basaran
Summary: The fatigue life estimation of metals in hydrogen-rich environments is crucial due to various hydrogen embrittlement mechanisms. The synergistic effects of hydrogen-enhanced localized plasticity (HELP) and hydrogen-enhanced decohesion (HEDE) in steel depend on the hydrogen concentration level, resulting in different fracture modes. This study derives the thermodynamic fundamental equation of pre-hydrogen embrittled steel and proposes a novel model for fatigue life estimation, considering the synergistic interaction of hydrogen embrittlement mechanisms. The unified mechanics theory (UMT) is used, which is based on the second law of thermodynamics and the universal laws of motion of Newton.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Thermodynamics
Alexander Karpov, Alexei Kudrin, Michael Y. Alies
Summary: In this study, a numerical algorithm based on non-equilibrium thermodynamics is proposed to predict the stationary flame propagation velocity in premixed gas mixtures. By considering combustion as a series of irreversible processes and using a variational statement, an integral relationship for the flame propagation velocity is obtained. The calculations show that the proposed algorithm converges faster in the initial iteration steps and eventually satisfies the general mass balance.
CASE STUDIES IN THERMAL ENGINEERING
(2022)
Article
Engineering, Industrial
Elizabeth Bismut, Daniel Straub
Summary: This paper presents a heuristic-based approach using simple decision rules to optimize inspection and maintenance plans for large structures. The method involves adaptive planning to continuously adjust the initial I&M plan throughout the service life based on past inspection and monitoring results.
RELIABILITY ENGINEERING & SYSTEM SAFETY
(2021)
Article
Materials Science, Multidisciplinary
J. Y. Jang, M. M. Khonsari
Summary: Fracture due to cyclic actuation occurs when the accumulated entropy generation reaches a critical threshold known as the fracture fatigue entropy (FFE). The study examines the contribution of mechanisms such as supplied work, damage energy, cold work, and internal friction to fatigue damage using an irreversible thermodynamic framework and provides experimental evidence for the validity of the formulations. The formulations accurately capture the evolution of temperature and reveal that the experimentally observed abrupt temperature rise just before fracture is due to the rapid increase in damage and can be predicted.
MECHANICS OF MATERIALS
(2021)
Article
Astronomy & Astrophysics
Nikolay Bobev, Vasil Dimitrov, Valentin Reys, Annelien Vekemans
Summary: Using recent results in four-derivative 5d N = 2 minimal gauged supergravity, the regularized on-shell action of the Euclidean solution in this theory that admits a Lorentzian continuation to an AdS(5) black hole with one electric charge and two angular momenta is evaluated. It is shown that the supersymmetric limit of this solution can be described purely in terms of angular momentum fugacities and the 't Hooft anomalies for the U(1)(R) R symmetry of the dual 4d N = 1 superconformal field theory using holography. This holographic calculation is in perfect agreement with recent studies of the 4d N = 1 superconformal index on the second sheet. Additionally, the leading four-derivative corrections to the Bekenstein-Hawking entropy are explicitly calculated for the black hole solution.
Article
Engineering, Mechanical
Wangwen Zhao
Summary: This study investigates the uncertainties in fatigue design of offshore structures and recalibrates the Design Fatigue Factors through a detailed reliability analysis. The results show that the Design Fatigue Factors vary for different environmental conditions while maintaining the same target reliability.
INTERNATIONAL JOURNAL OF FATIGUE
(2021)
Article
Physics, Multidisciplinary
Jae Sung Lee, Sangyun Lee, Hyukjoon Kwon, Hyunggyu Park
Summary: Landauer's bound is the minimum thermodynamic cost for erasing one bit of information. Finite-time operation incurs additional energetic costs, with different scaling behavior depending on the degree of irreversibility of the process. Optimal dynamics can lead to the equality of the bound.
PHYSICAL REVIEW LETTERS
(2022)
Review
Engineering, Multidisciplinary
Anahita Imanian, Mohammad Modarres
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
(2018)
Article
Engineering, Multidisciplinary
Amin Aria, Enrique Lopez Droguett, Shapour Azarm, Mohammad Modarres
STRUCTURAL HEALTH MONITORING-AN INTERNATIONAL JOURNAL
(2020)
Article
Mechanics
Seyed Fouad Karimian, Mohammad Modarres, Hugh A. Bruck
ENGINEERING FRACTURE MECHANICS
(2020)
Article
Engineering, Industrial
Taotao Zhou, Enrique Lopez Droguett, Mohammad Modarres
RELIABILITY ENGINEERING & SYSTEM SAFETY
(2020)
Article
Chemistry, Analytical
David Verstraete, Enrique Droguett, Mohammad Modarres
Article
Nuclear Science & Technology
Mohammad Modarres, Steven Krahn, James O'Brien
Summary: This paper outlines research on understanding, characterizing, and managing conservatisms in safety analyses, proposing a probabilistic approach to reducing conservatism while maintaining safety margins. The research demonstrates that conservative estimates could lead to excessive safety margins compared to best-estimate values in two case studies.
NUCLEAR TECHNOLOGY
(2021)
Article
Mechanics
Seyed Fouad Karimian, Mohammad Modarres
Summary: Acoustic emission (AE) for FRP structural health monitoring has been extensively studied, with recent focus on waveform analysis and selection of an optimum bin width which correlates well with conventional features, outperforming clustering performance.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Industrial
Jonathan DeJesus Segarra, Michelle Bensi, Mohammad Modarres
Summary: The importance of modeling the dependency between seismic failures of multiple components in a nuclear power plant probabilistic risk assessment has been discussed since the 1980s. The proposed Bayesian network approach provides better results in staying within the lower and upper bounds of system fragility compared to the Reed-McCann method, and it performs similarly to the First-Order Reliability Method and Monte Carlo simulation.
RELIABILITY ENGINEERING & SYSTEM SAFETY
(2021)
Review
Engineering, Industrial
Taotao Zhou, Mohammad Modarres, Enrique Lopez Droguett
Summary: The growing concern over probabilistic risk assessments (PRA) has led to active developments in multi-unit probabilistic risk assessment (MUPRA) post the Fukushima Daiichi accident in 2011. However, technical issues and challenges have arisen due to possible inter-unit dependencies in MUPRA. Further research and exploration are needed in areas such as accident sequences, risk metrics, and site-based models to address these challenges and gaps for future developments.
RELIABILITY ENGINEERING & SYSTEM SAFETY
(2021)
Article
Acoustics
Sergio Cofre-Martel, Enrique Lopez Droguett, Mohammad Modarres
Summary: Researchers have used deep learning algorithms to predict the health state of a system and proposed an open-box method to study the physical degradation process of complex systems through partial differential equations. Results show that the latent variable can capture the failure modes of the system and perform well as a health state estimator through a random forest classifier.
SHOCK AND VIBRATION
(2021)
Article
Chemistry, Analytical
Sergio Cofre-Martel, Enrique Lopez Droguett, Mohammad Modarres
Summary: This paper discusses the impact of sensor monitoring networks and big data analytics on reliability engineering, as well as the application of data-driven models for diagnostics and prognostics in complex systems. It also highlights the lack of attention to data preprocessing steps in current research for real operating systems.
Article
Chemistry, Analytical
Hamidreza Habibollahi Najaf Abadi, Mohammad Modarres
Summary: Evaluating the physical degradation behavior and estimating the lifetime of engineering systems and structures is crucial. This paper proposes a data-driven framework for time-efficient modeling of field degradation using sensor measurements. The framework consists of two neural networks: a physics discovery neural network and a predictive neural network. The results show the proposed framework's effectiveness in predicting the lifetime of steel test samples in a marine environment.
Article
Green & Sustainable Science & Technology
Hamidreza Habibollahi Najaf Abadi, Jeffrey W. Herrmann, Mohammad Modarres
Summary: This paper reviews past research on measuring product durability and proposes an overall framework for assessing durability. The framework can help manufacturers improve product design, communicate durability information, and promote sustainability.
Article
Computer Science, Information Systems
Amin Aria, Shapour Azarm, Mohammad Modarres
Review
Engineering, Multidisciplinary
Roohollah Heidary, Steven A. Gabriel, Mohammad Modarres, Katrina M. Groth, Nader Vahdati
INTERNATIONAL JOURNAL OF PROGNOSTICS AND HEALTH MANAGEMENT
(2018)
