Results 101 to 110 of about 48,809 (312)

A two-dimensional in situ fatigue cohesive zone model for crack propagation in composites under cyclic loading [PDF]

open access: yes, 2016
•Formulate, implement, and validate a new non-Paris-Law-based fatigue CZM.•Provide an efficient cycle jump strategy for high-cycle fatigue simulation.•Demonstrate the fatigue CZM can be calibrated from simple fatigue fracture tests.•Demonstrate the ...
Yang, Q.D, Schesser, D, Nojavan, S
core   +1 more source

All‐Polyimide‐Mediated Liquid Metal Assembly on Aerogels for Breathable and Robust Electronic Skins

open access: yesAdvanced Materials, EarlyView.
An all‐polyimide‐mediated assembly strategy resolves the fundamental conflict between physiological breathability and electromechanical robustness in wearable electronics. By integrating a polyamic acid‐encapsulated liquid metal ink onto an ultralight polyimide aerogel, imidization‐induced contraction enables low‐temperature conductive activation and ...
Haijun Zhu   +18 more
wiley   +1 more source

On the Role of Entropy Generation in Processes Involving Fatigue

open access: yesEntropy, 2011
In this paper we describe the potential of employing the concept of thermodynamic entropy generation to assess degradation in processes involving metal fatigue.
M. M. Khonsari, Mehdi Amiri
doaj   +1 more source

Mechanical Fatigue in Liquid‐Metal Interconnects: Failure Mechanism Analysis and Validation of Improvement Strategies

open access: yesAdvanced Materials Technologies, EarlyView.
Multi‐million cycle reliability for liquid metal stretchable electronics is achieved through a continuous cycle of mechanical testing, failure mode and mechanism analysis and implementing subsequent mitigation strategies. ABSTRACT Stretchable electronics that combine mechanical compliance with reliable electrical performance are essential for ...
Lennert Purnal   +8 more
wiley   +1 more source

Effect of Humidity on The Fatigue Behaviour of Adhesively Bonded Aluminium Joints

open access: yesLatin American Journal of Solids and Structures
The present work focuses on the effects of water degradation on the fatigue behaviour of adhesive joints bonded with aluminium adherends. The objective of this study is to measure the influence that humidity has on the fatigue crack growth velocity of ...
M. Costa   +3 more
doaj   +1 more source

Reliability-based fatigue assessment of steel bridges using LEFM - A sensitivity analysis [PDF]

open access: yes, 2016
The lack of an established safety format prohibits a widespread use of linear elastic fracture mechanics (LEFM) for the fatigue assessment of steel bridges. The aim of this study is to facilitate a future development of a deterministic design approach. A
Leander, J.   +4 more
core   +1 more source

Additive‐Manufactured, Multifunctional Bioreactor Technology for Dynamic Culture of 3D Bioprinted Tissue Models

open access: yesAdvanced Materials Technologies, EarlyView.
We introduce an additively manufactured bioreactor with a perfusion flow system and integrated temperature and pH sensors for skeletal muscle tissue biofabrication. The bioreactor's performance was evaluated by assessing the viability, spreading of the myoblast cells in a printed scaffold, and contraction of the isolated murine musculi interossei ...
Lys Sprenger   +9 more
wiley   +1 more source

Probabilistic Fatigue Crack Growth Prediction for Pipelines with Initial Flaws

open access: yesBuildings
This paper presents a probabilistic method to predict fatigue crack growth for surface flaws in pipelines using a particle filtering method based on Bayes theorem.
Youngjin Choi, Seung-Jung Lee
doaj   +1 more source

Influence of the microstructure and defects on the high cycle fatigue strength of 316L stainless steel under multiaxial loading [PDF]

open access: yes, 2014
In the present study, the effects of both the microstructure and defects on the high cycle fatigue behavior of the 316L austenitic stainless steel are investigated thanks to finite element simulations of polycrystalline aggregates. The numerical analysis
MOREL, Franck   +3 more
core  

Morphology‐Driven Electromechanical Performance of Graphene‐Based Electrofluids for Emerging Soft Electronic Systems

open access: yesAdvanced Materials Technologies, EarlyView.
Here, two types of electronic components are presented: a strain sensor and a stable resistor. Electrofluids properties are tuned to match these behaviors by selecting the type of filler. We show that the morphology of the filler together with its oxygen content are the key parameters to create electrical and mechanical networks with distinct responses.
Dominik S. Schmidt   +4 more
wiley   +1 more source

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