Results 41 to 50 of about 38,668 (294)

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Fatigue in the core of aluminum honeycomb panels: Lifetime prediction compared with fatigue tests

International Journal of Damage Mechanics, 2013
In comparison to their weight, honeycomb composite structures have a high bending stiffness, which makes them very suited for every application such as airplanes, railway-cars and vehicles, where little weight is important. The sandwich panels consist of two thin and stiff aluminum face sheets, which are bonded to a thick and lightweight aluminum ...
Wahl, Laurent, Maas, Stefan, Waldmann, Danièle, Zürbes, Arno, Frères, Patrick   +4 more
openaire   +2 more sources

MODELLING OF STRESS GRADIENT EFFECT ON FATIGUE LIFE USING WEIBULL BASED DISTRIBUTION FUNCTION [PDF]

, 2013
In the present paper, a new approach is developed in order to take into account the stress gradient effect on fatigue life of structural components. The proposed approach is based on the weakest link concept in which the shape coefficient of the Weibull ...
KAROLCZUK, Aleksander, PALIN-LUC, Thierry   +1 more
core   +3 more sources

From Mechanics to Electronics: Influence of ALD Interlayers on the Multiaxial Electro‐Mechanical Behavior of Metal–Oxide Bilayers

Advanced Functional Materials, EarlyView.
Ultrathin AlOxHy interlayers between aluminum films and polymer substrates significantly improve electro‐mechanical properties of flexible thin film systems. By precisely controlling interlayer thickness using atomic layer deposition, this study identifies an optimal interlayer thickness of 5–10 nm that enhances ductility and delays cracking.
Johanna Byloff, Vivek Devulapalli, Daniele Casari, Thomas E. J. Edwards, Claus O. W. Trost, Megan J. Cordill, Shuhel Altaf Husain, Pierre‐Olivier Renault, Damien Faurie, Barbara Putz   +9 more
wiley   +1 more source

A multiscale finite element approach to analyse the effect of shot peening-induced surface roughness on fretting fatigue crack initiation

Results in Engineering
Shot peening (SP) is a widely used surface treatment technique that enhances the mechanical performance of materials, notably improving fatigue resistance by inducing compressive residual stresses (RS) and modifying surface characteristics.
Chao Li, Sutao Han, Can Wang, Auezhan Amanov, Lihua Wang, Magd Abdel Wahab   +5 more
doaj   +1 more source

The linear matching method applied to the high temperature life integrity of structures. Part 1. Assessments involving constant residual stress fields [PDF]

, 2006
Design and life assessment procedures for high temperatures are based on 'expert knowledge' in structural mechanics and materials science, combined with simplified methods of structural analysis. Of these R5 is one of the most widely used life assessment
Ainsworth, R.A., Chen, Haofeng, Ponter, Alan R.S.   +2 more
core   +1 more source

Bone Healing Around Implants in Normal and Medically Compromised Conditions: Osteoporosis and Diabetes

Advanced Healthcare Materials, EarlyView.
xx xx. ABSTRACT Osseointegration of orthopedic and dental implants is influenced by local and systemic factors, including their physicochemical surface properties and the patient's overall health status. Titanium and its alloys have been a longstanding standard for bone implants due to their innate biocompatibility and mechanical properties.
Dainelys Guadarrama Bello, Fabio Variola, Antonio Nanci   +2 more
wiley   +1 more source

Fatigue and short crack assessment of powder bed fusion laser-based fabricated AlSi10Mg miniature specimens under alternating bending load

Materials & Design
Al-Si alloys are commonly used in the automotive and aircraft industry because of their excellent strength-to-weight ratio. Due to the laser powder bed fusion manufacturing process, inhomogeneous cooling affects the microstructure as well as defect ...
Sebastian Stammkötter, Jochen Tenkamp, Mirko Teschke, Kai Donnerbauer, Alexander Koch, Timo Platt, Dirk Biermann, Frank Walther   +7 more
doaj   +1 more source

Fatigue Lifetime Prediction Method for Ceramics with Defects.

Journal of the Society of Materials Science, Japan, 1994
A new method of predicting the fatigue lifetime of ceramics with various sizes of defects has been developed. In this method, first, specimens each of which has an artificial crack of constant size are used to estimate fatigue crack propagation parameters.
Hiroshi HOHJO, Katsushi SARUKI, Akira YAMADA   +2 more
openaire   +2 more sources

Fluid-structure interaction on the combustion instability [PDF]

, 2012
The multi-domain problem, the limit cycle behaviour of unstable oscillations in the LIMOUSINE model combustor has been investigated by numerical and experimental studies.
Altunlu, A.C., Boer, A de, Hoogt, P.J.M. van der, Kok, J.B.W., Pozarlik, A.K., Shahi, M.   +5 more
core   +1 more source