Results 1 to 10 of about 69,238 (318)

Novel Methodology for Fatigue Lifetime Prediction

1993
A unique fatigue lifetime equation offers the possibility of predicting residual fatigue lifetime of a material. Derivation of this lifetime equation is based on a correlation between the total and plastic strain amplitude during cyclic loading. A ratio determined as the reciprocal value of the elasticity modulus degradation is evaluated from the ...
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Fatigue crack initiation behaviour of notched 34CrNiMo6 steel bars under proportional bending-torsion loading

, 2020
Fatigue crack initiation behaviour of notched 34CrNiMo6 high-strength steel bars with transverse blind holes and lateral U-shaped notches subjected to proportional bending-torsion loading is studied.
R. Branco, J. Costa, F. Berto, A. Kotousov, F. Antunes   +4 more
semanticscholar   +1 more source

Lifetime Prediction of Thermo-Mechanical Fatigue for Exhaust Manifold

Advanced Materials Research, 2012
In this research, the non-linear thermo-mechanical simulation, experimental study and lifetime prediction of engine exhaust manifold were systematically analyzed. Fluid-structure coupled method was employed in the simulation. Heat transfer analysis simultaneous considered radiation, convection and conduction.
Chang Liu, Wei Zheng Zhang
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Fatigue lifetime prediction model for spot welded structures

Revue de Métallurgie, 2000
Structural components in the car industry are often assembled by resistance welding. Submitted in service to multiaxial loading, those components have to meet fatigue resistance requirements (amongst others). The aim of the proposed model is to predict the lifetime of spot welded structural components. It also allows to optimize the position and number
H. Di Fant-Jaeckels, A. Galtier
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Advances in Fatigue Lifetime Predictive Techniques: Second Volume

1993
Description 15 papers cover: • fundamental issues in damage development and crack growth • behavior in both low- and high-cycle regimes, under constant amplitude and spectrum loading conditions • performance of advanced materials in hostile environments, including creep-fatigue and ...
MR Mitchell, RW Landgraf
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Predicting Thermal Fatigue Lifetimes for SMT Solder Joints

Journal of Electronic Packaging, 1992
A power-law type creep equation has been added to finite element models to calculate solder joint response to time, temperature, and stress level. The ability of the models to predict solder joint behavior was verified by running a series of creep tests.
J. Sauber, J. Seyyedi
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Advances in Fatigue Lifetime Predictive Techniques: 3rd Volume

1996
Description The latest information on methods for predicting and understanding fatigue failures in materials and structures. 17 peer-reviewed papers cover: • metal matrix composite complexities; • analysis methods for multiple failure mechanisms; • cyclic and creep loading ...
MR Mitchell, RW Landgraf
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Prediction and measurement of fatigue of lifetime distributions for elastomeric biomaterials

Journal of Applied Polymer Science, 1984
AbstractSynthetic polymer biomaterials being considered for cardiovascular applications must perform under conditions of large cyclic deformations for long lifetimes. In designing with these materials and eventually qualifying them clinically, it would be extremely helpful to be able to predict the fatigue lifetimes accurately and reliably.
K. P. Gadkaree, J. L. Kardos
openaire   +1 more source

Lifetime prediction for thermal fatigue: development of a stochastic model

1992
Crack patterns originating from thermal fatigue loading of an austenitic steel plate are evaluated in order to obtain characteristics which allow a model-based stochastic simulation of the developing crack patterns. As a first step, it is shown in this paper how crack geometries can be derived from the experimental results.
Kullig, E., Riesch-Oppermann, H., Winkler, T., Brueckner-Foit, A.   +3 more
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A method of lifetime prediction in the creep-fatigue interaction regime

1997
The application of the rule of linear accumulation of strain rate modified creep damage (the SRM rule) for lifetime prediction in the creep-fatigue interaction regime requires the knowledge of stress and inelastic strain rate during a load cycle. This may be simulated by a suitable constitutive model, thus avoiding the need to perform tests. Chaboche's
Rubeša, Domagoj, Danzer, Robert
openaire   +2 more sources