Results 41 to 50 of about 564 (199)

Fatigue Crack Modeling of Railheads Using a Nonlinear Cohesive Zone Model

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT Subsurface fatigue crack growth within railheads can be deleterious leading to catastrophic failures in rails. This study aims to model the fatigue crack growth originating at the subsurface level within railheads. Towards that end, a finite element modeling approach is utilized wherein complex crack growth is explicitly modeled using a ...
Santosh Reddy Kommidi, Hesam Mortazavi, Yong‐Rak Kim, David H. Allen   +3 more
wiley   +1 more source

Structural integrity assessment of superheater outlet penetration tubeplate

, 2009
In recent years, the Linear Matching Method (LMM) has been well developed for the integrity assessment of the component subjected to cyclic thermal and mechanical loads.
Haofeng Chen, Chen, Haofeng, Ponter, Alan R.S., Alan R.S. Ponter   +3 more
core   +1 more source

Self‐Expanding Cardiovascular Stents: Potentials and Challenges of Shape Memory Biomaterials

Journal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 114, Issue 6, June 2026.
ABSTRACT Cardiovascular diseases affect a large portion of the global population and remain leading causes of morbidity and mortality. Endovascular stenting, a minimally invasive procedure, enables the insertion and deployment of stents to restore arterial patency without open surgery.
Luci R. Duncan, Josiah S. Owusu‐Danquah   +1 more
wiley   +1 more source

Electrocatalytic Reduction of CO2 to Ethylene: Catalyst Design and Synchrotron‐Based Characterizations

Advanced Functional Materials, Volume 36, Issue 35, 30 April 2026.
This review evaluates strategies for electrochemical CO2 reduction to ethylene, focusing on copper‐based catalyst design and microenvironment modulation to achieve industrial‐grade performance. By leveraging operando synchrotron‐based characterizations, we provide a multiscale understanding of dynamic structural transformations and key reaction ...
Meng Zhang, Zuolong Chen, Yimin A. Wu
wiley   +1 more source

Shakedown analysis under stochastic uncertainty by chance constrained programming

, 2017
Summarization: In this paper we propose a stochastic programming method to analyse limit and shakedown of structures under uncertainty condition of strength.
Trần Thanh Ngoc, Matthies Hermann Georg, Staat M., Σταυρουλακης Γεωργιος(http://users.isc.tuc.gr/~gestavroulakis), Trân Ngoc Trình, Stavroulakis Georgios(http://users.isc.tuc.gr/~gestavroulakis)   +5 more
core   +2 more sources

Kuhn-tucker conditions in shakedown problems

Journal of Civil Engineering and Management, 1996
An elastic perfectly plastic structure at shakedown to given cyclić loading is under consideration. The stress-strain field of dissipative system in general is related to the history of loading. And only in a particular case, i.e.
Juozas Atkočiūnas
doaj   +1 more source

Research on High-Speed Railway Subgrade Design Method Based on Energy Dissipation and Dynamic Stability Characteristics

Applied Sciences
The subgrade structure of high-speed railways is an important foundation for the safe and smooth operation of high-speed trains, and the scientific design of the subgrade structure provides a fundamental guarantee of its durability and technical economy.
Zongqi Bi, Yangsheng Ye, Degou Cai, Hongye Yan, Mingzhe Ouyang, Ke Su   +5 more
doaj   +1 more source

Mathematical programming applications peculiarities in shakedown problem/Matematinio programavimo taikymo konstrukcijų prisitaikymo uždaviniuose ypatumai

Journal of Civil Engineering and Management, 2001
The theory of mathematical programming widely spread as a method of a solution of extreme problems. It accompanies the study of plastic theory problem from its posing up to final solution.
Ela Chraptovič, Juozas Atkočiūnas
doaj   +1 more source

Methodology for Multiaxial Fatigue Assessment of 2024‐T351 Aluminum Alloy Under Load Paths Representative of Aeronautical Structures

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 3, Page 979-997, March 2026.
ABSTRACT Bolted assemblies are widely used in aerospace, automotive, and railway industries, where they experience complex multiaxial loadings. Understanding the multiaxial fatigue behavior of materials in such joints is essential for ensuring structural durability.
Maxime Nutte, Pascale Kanouté, Vincent Bonnand, Benjamin Delpuech, Serge Kruch   +4 more
wiley   +1 more source

Calculation of a lower bound ratchet limit part 1 – Theory, numerical implementation and verification

, 2013
It is important to be able to calculate the ratchet limit of a component when performing integrity assessments of plant components. This paper details the addition of a lower bound ratchet limit calculation to the Linear Matching Method. The extension of
Tipping, David, Ure, James Michael, Chen, Haofeng   +2 more
core   +1 more source