Results 211 to 220 of about 174,013 (259)
Some of the next articles are maybe not open access.
Remodeling and the repair of fatigue damage
Calcified Tissue International, 1993This paper reviews the direct and indirect evidence for and against the idea that bone remodeling repairs fatigue damage. It defines experiments that should be performed to determine whether the accumulation and repair of fatigue damage is relevant to the pathogenesis of osteoporotic fracture.
openaire +2 more sources
Fatigue Damage Map as a Virtual Tool for Fatigue Damage Tolerance
2009Using only readily available material properties and the concept of dislocation density evolution ahead of the crack tip, the fatigue damage map attends to develop a virtual tool able to predict the limits and the corresponding crack tip propagation rates characterising each of the fatigue stages, namely crack arrest, microstructurally and physically ...
openaire +1 more source
Journal of Engineering Mechanics, 1992
Three‐point bending fatigue tests are performed on two types of concrete using two different R ratios. The maximum strain is recorded during the tests. A damage mechanics model for the fatigue of concrete is proposed. It is based on a damage parameter proportional to the irreversible increment per cycle of the largest principal positive strain.
A. Alliche, D. Frangois
openaire +1 more source
Three‐point bending fatigue tests are performed on two types of concrete using two different R ratios. The maximum strain is recorded during the tests. A damage mechanics model for the fatigue of concrete is proposed. It is based on a damage parameter proportional to the irreversible increment per cycle of the largest principal positive strain.
A. Alliche, D. Frangois
openaire +1 more source
The summation of fatigue damage
Strength of Materials, 19751. Using the energy approach here proposed, we have derived an equation for the summation of fatigue damage. As rupture criterion we take part of the total energy dissipated by unit volume of the materials. 2. The linear hypothesis and the hypothesis of Cortain and Dollan represent limiting forms of the resultant equation for materials ...
A. I. Makeev +2 more
openaire +1 more source
Dissipation and fatigue damage
Materials Testing, 2004Abstract The discussion of fatigue damage is generally separated in two domains: Low Cycle Fatigue (LCF) and High Cycle Fatigue (HCF). The transition zone concerns the case of limited endurance, while the unlimited endurance is generally assimilated with HCF.
Eric Charkaluk, Andrei Constantinescu
openaire +1 more source
1986
The plane frame version of a steel jacket platform is analysed by mode acceleration method. The local stresses in the joints of an offshore structure subjected to random wave/current load are derived from the nominal stress response of the structural members using the stress concentration factors.
Ashok Gupta, Ramesh Prasad Singh
openaire +1 more source
The plane frame version of a steel jacket platform is analysed by mode acceleration method. The local stresses in the joints of an offshore structure subjected to random wave/current load are derived from the nominal stress response of the structural members using the stress concentration factors.
Ashok Gupta, Ramesh Prasad Singh
openaire +1 more source
Materials Science and Engineering: A, 1988
Abstract In this paper the problem of cumulative fatigue damage is considered. On the basis of the invariable succession postulate and the invariable damage postulate, a general form for a one-damage-parameter cumulative-damage model is developed. It has been shown that some of the models previously proposed can be obtained as a particular case of ...
openaire +1 more source
Abstract In this paper the problem of cumulative fatigue damage is considered. On the basis of the invariable succession postulate and the invariable damage postulate, a general form for a one-damage-parameter cumulative-damage model is developed. It has been shown that some of the models previously proposed can be obtained as a particular case of ...
openaire +1 more source
Creep Damage and Creep-Fatigue Damage
2011A time-dependent deformation occurring in a material subject to load for a prolonged period of time is called creep. In a narrower sense, creep means a time-dependent deformation caused by a constant stress or a constant load. Materials undergoing creep for long time are often accompanied by time dependent internal deterioration.
openaire +1 more source
1956
Cumulative damage in fatigue is a problem which in recent years has become of interest to designers in almost all branches of structural engineering. To the aircraft designer however — especially under present-day conditions of operation — it is of paramount importance.
openaire +1 more source
Cumulative damage in fatigue is a problem which in recent years has become of interest to designers in almost all branches of structural engineering. To the aircraft designer however — especially under present-day conditions of operation — it is of paramount importance.
openaire +1 more source
1982
A conceptual definition of fatigue damage is proposed to assist in the selection of measurement techniques and parameters for correlating damage with fatigue life. To illustrate the concept, a critical review of some typical damage parameters for composite materials is given.
openaire +1 more source
A conceptual definition of fatigue damage is proposed to assist in the selection of measurement techniques and parameters for correlating damage with fatigue life. To illustrate the concept, a critical review of some typical damage parameters for composite materials is given.
openaire +1 more source