Results 51 to 60 of about 37,853 (293)

An Enhanced Random Vibration and Fatigue Model for Printed Circuit Boards

Latin American Journal of Solids and Structures
Aerospace vehicles are mostly exposed to random vibration loads during its operational lifetime. These harsh conditions excites vibration responses in the vehicles printed circuit boards, what can cause failure on mission functionality due to fatigue ...
Bruno de Castro Braz, Flávio Luiz de Silva Bussamra   +1 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

Multiaxial Fatigue Lifetime Estimation Based on New Equivalent Strain Energy Damage Model under Variable Amplitude Loading

Crystals
The largest normal stress excursion during contiguous turn time instants of the maximum torsional stress is presented as an innovative path-independent fatigue damage quantity upon the critical plane, which is further employed for characterizing fatigue ...
Zhi-Qiang Tao, Xiangnan Pan, Zi-Ling Zhang, Hong Chen, Li-Xia Li   +4 more
doaj   +1 more source

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

Soft Ionic and Electronic Triboelectric Nanogenerators: Toward Attachable and Implantable Biomedical Applications

Advanced Materials, EarlyView.
This review provides an overview of triboelectric nanogenerator (TENG)–based biomedical applications by classifying studies into electronic and ionic systems across attachable and implantable platforms. It summarizes key material choices, device structures, and working mechanisms that characterize current TENG‐based research, and outlines six future ...
Kyongtae Choi, Jimin Park, Won Jun Song, Soohwan An, Seonggyu Choe, Byeong‐Rak Keum, Min Young Kim, Dae Hee Hwang, Young‐Geun Park, Sung‐Won Kim, Sangyul Baik, Gwang‐Bum Im, Younghoon Lee   +12 more
wiley   +1 more source

Stress and Fatigue Simulation of Structural Blades in Mechanical Clearing Operations

The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science
This study presents a numerical investigation into the structural performance of the cutting blades used in vegetation-clearing operations, particularly within mechanical systems designed for demining or land maintenance.
Florin-Bogdan MARIN, Iulian CONSTANTIN, Mihaela MARIN   +2 more
doaj   +1 more source

Xfem VS Fem: application to fretting fatigue 2D crack propagation [PDF]

, 2013
C
Abdel Wahab, Magd, De Pauw, Jan, Hojjati Talemi, Reza, Sadeghi, Mohammadzamaan, Yue, Tongyan   +4 more
core   +1 more source

Light‐Programmable Interfaces: From Molecular Photoswitching to Adaptive Membrane Separations

Advanced Materials Interfaces, EarlyView.
This review advances an interface‐centered framework for light‐responsive membranes, linking molecular photoswitches (azobenzene (AZO), spiropyran (SP), diarylethene (DAE), donor–acceptor Stenhouse adducts (DASA), photoacid) to integration strategies in polymeric, porous, self‐assembled, and mixed‐matrix systems.
Liangliang Zhang, Senlin Gu, Jianyang Zhao, Xiaojuan Hao, Lu Hua Li, Jihua Li, Lingxue Kong   +6 more
wiley   +1 more source

Fatigue Test and Lifetime Prediction of Implantable Biocomposite Materials

Chemical Sciences Journal, 2018
Biocomposite materials consisting of Poly-L-Lactic-Co-Glycolic Acid (PLGA) and Hydroxyapatite (HA) were synthesized and mechanical properties have been observed by carrying out the fatigue test, for which accelerated tests have been conducted such that 20%, 30% and 40% of the yield strength have been applied in a repeated mode until a crack occurred on
Jin Young Choi, Jisoo Kim, Jinyong Shin, Minsu Lee, Tae Ho Yoon, Sunmook Lee   +5 more
openaire   +1 more source