Results 251 to 260 of about 207,604 (309)

Study of fatigue damage to the cochlea

Computer Methods in Biomechanics and Biomedical Engineering, 2023
In order to explore the hearing loss resulting from exposure to continuous or intermittent loud noise. A three-dimensional liquid-solid coupling finite element model of spiral cochlea was established. The reliability of the model was verified, and the stress and amplitude of the basilar membrane of the pivotal structure in cochlea were analyzed.
Lei, Gao, Jiakun, Wang, Junyi, Liang, Wenjuan, Yao, Lei, Zhou, Xinsheng, Huang   +5 more
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Fatigue damage monitoring

Microprocessors and Microsystems, 1980
Abstract The instrument described is a battery operated fatigue damage indicator, designed for continuous field use, attached permanently to the structure being monitored. It is unique in its use of a CMOS microprocessor and continuous LCD display and uses a new algorithm which is a reformulation of an existing fatigue analysis technique so as to ...
Ian R. Whitworth, J. Thickpenny
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Fatigue damage mechanisms

, 2016
This chapter reviews the damage mechanisms operating in composite materials under repeated application of loads. Microscopic observations of the failure events are presented and the progression of damage is deduced. The effects of fiber stiffness, matrix
Talreja, Ramesh,, R. Talreja
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Damage and fatigue: Continuum damage mechanics modeling for fatigue of materials and structures

Revue européenne de génie civil, 2006
ABSTRACT Application of damage mechanics to fatigue is addressed in the present paper. The ability of Lemaitre's damage law to describe low and high cycle fatigue failure of metals is illustrated. Its generalization into an evolution law modeling a damage rate governed by the main dissipative mechanics applies to concrete, elastomers, rocks and to ...
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Fatigue damage of human tendons

Journal of Biomechanics, 2002
The study was designed to examine the effects of partial fatigue on specific mechanical parameters which characterise human tendons in vitro. Specimens prepared from 12 intact Extensor digitorum longus tendons of the foot were subjected to partial fatigue, equivalent to 25% of the median fatigue life, by a cyclic square tension-tension stress waveform ...
H, Schechtman, D L, Bader
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Fatigue Damage in Composite Materials

International Applied Mechanics, 2002
Summary: The paper deals with the problems of fatigue of laminated composite materials. The authors emphasize the necessity of calculation of the material microparameters together with the macroparameters of layers and the construction in the whole. The paper provides a survey of results.
Revuelta, D., Miravete, A.
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Exercise, Muscle Damage and Fatigue*

Sports Medicine, 1992
Fatigue as a functional sign and muscle damage as a structural sign can be observed after prolonged exercise like marathon running or after strenuous exercise, especially with the involvement of eccentric contractions. For fatigue due to prolonged exercise, hypoxic conditions and the formation of free oxygen radicals seem to be of aetiological ...
H J, Appell, J M, Soares, J A, Duarte
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Fatigue damage in GFRP

International Journal of Structural Integrity, 2012
PurposeComposite materials are increasingly used in the structural and mechanical fields, thanks to their high strength‐to‐weight ratios and the possibility of tailoring them to meet specific requirements. This study is focused on the damage to a glass fiber reinforced composite under different loading conditions.
COLOMBO, CHIARA, LIBONATI, FLAVIA, VERGANI, LAURA MARIA   +2 more
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Fatigue Damage Tolerant Analysis Using the Fatigue Damage Map

2006
Based on the principles of microstructural fracture mechanics the current work demonstrates the physical relationship between the size of crack plasticity and the five stages of crack growth from catastrophic crack initiation to failure. The relationship allows the continuous evaluation and distinction of the five stages of fatigue damage in the form ...
C. A. Rodopoulos, J. R. Yates
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Evolution of fatigue damage using the fatigue damage map method

Theoretical and Applied Fracture Mechanics, 2006
Using only readily available material properties and the concept of the fatigue damage map the work attends to develop a methodology able to predict crack tip propagation rates characterising each of the fatigue stages, namely crack arrest, microstructurally and physically short crack (Stage I), long crack growth (Stage II) and Stage III growth.
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