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Stress Analysis and Stiffness Degradation of Open Cracks Composite Laminates Subjected to External Loads [PDF]

open access: yesBiomimetics
Composite laminated structures have extensive applications in the field of bionic engineering. Proficient comprehension of the mechanical properties of these structures is instrumental in the advancement of bionic composite materials.
Zhicheng Huang   +3 more
doaj   +2 more sources

Fatigue damage stiffness degradation modeling of right circular flexure hinges

open access: yesAIP Advances, 2023
Flexure hinges are susceptible to fatigue damage under cyclic loading, resulting in performance degradation. This paper investigates the stiffness degradation of the right circular flexure hinges (RCFHs) under cyclic loading.
Qiliang Wang, Yiping Long, Jianming Wei
doaj   +2 more sources

A Review of Mechanical Degradation, Interfacial Nonlinear Dynamics and Multi-Bolt Coupling Degradation Mechanisms of Flange-Bolted Joints [PDF]

open access: yesSensors
Bolted flange joints are critical load-bearing connection components of complex mechanical equipment, whose service performance is dominated by the coupled evolution of bolt preload relaxation and interfacial stiffness degradation under long-term cyclic ...
Xiaofei Feng   +8 more
doaj   +2 more sources

Structural Optimization and Finite Element Analysis of Variable-Stiffness Biodegradable Vascular Stents [PDF]

open access: yesJournal of Functional Biomaterials
Premature structural failure of biodegradable vascular stents (BVSs) induced by stress corrosion cracking (SCC) remains a critical challenge. Heterogeneous plaques compress the stent, leading to inadequate expansion and inducing stress concentration that
Hanbing Zhang   +5 more
doaj   +2 more sources

Residual stiffness characterization of FRP laminates under random block spectrum

open access: yesPolymer Testing, 2021
The fiber reinforced polymer/plastic (FRP) laminates are often subjected to random block spectrum loading in engineering. The simplified regular load in the laboratory fatigue tests is not sufficient to describe the actual fatigue damage history of FRP ...
Piao Li   +3 more
doaj   +1 more source

Study of stiffness and bearing capacity degradation of reinforced concrete beams under constant-amplitude fatigue. [PDF]

open access: yesPLoS ONE, 2018
For a reinforced concrete beam subjected to fatigue loads, the structural stiffness and bearing capacity will gradually undergo irreversible degeneration, leading to damage.
Fangping Liu, Jianting Zhou, Lei Yan
doaj   +1 more source

Structural Behavior of Concrete Beams Reinforced with Biaxial Geogrid

open access: yesBuildings, 2023
In recent decades, corrosion in steel reinforcement has been one of the fundamental risks in steel-reinforced concrete (RC) structures. Geosynthetics can be an alternative approach to solve corrosion problems.
K. Rajesh Kumar   +3 more
doaj   +1 more source

Restoring Force Model for Composite-Shear Wall with Concealed Bracings in Steel-Tube Frame

open access: yesBuildings, 2022
Establishing a restoring force model is a fundamental yet critical task for the analysis of structural responses to earthquakes. Such a model has a substantial impact on the structural analysis results.
Ding Wei, Jia Suizi
doaj   +1 more source

Experimental Study of the Influence of Extremely Repeated Thermal Loading on a Ballastless Slab Track-Bridge Structure

open access: yesApplied Sciences, 2020
To study the initiation and expansion of the interlayer gap of the China Railway Track System Type II (CRTS-II) ballastless slab track structure under the action of repeated thermal loading as well as the influence of the interlayer gap on the ...
Lingyu Zhou   +6 more
doaj   +1 more source

Cyclic threshold shear strain for pore water pressure generation and stiffness degradation in marine clays at Yangtze estuary

open access: yesFrontiers in Marine Science, 2023
Cyclic threshold shear strain is a fundamental property of saturated soils under cyclic loading. To investigate the cyclic threshold shear strain for pore water pressure generation (γtp) and stiffness degradation (γtd), a series of strain-controlled ...
Xing Xiao   +8 more
doaj   +1 more source

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