Results 241 to 250 of about 38,668 (294)

Advances in Fatigue Lifetime Predictive Techniques

Materials & Design, 1992
Description Papers from fatigue researchers and practitioners review recent progress in the development of methods to predict fatigue performance of materials and structures and to assess the extent to which these new methods are finding their way into practice.
MR Mitchell, RW Landgraf
openaire   +2 more sources

Lifetime prediction of fatigue sensitive structural elements

Structural Safety, 1993
Abstract The propagation of uncertainty from the mechanical and geometrical properties of a structural element to fracture mechanics parameters, as the stress intensity factor and the J integral, is studied using a stochastic finite element method.
F. Casciati, COLOMBI, PIERLUIGI, L. Faravelli   +2 more
openaire   +3 more sources

Alternative Fatigue Lifetime Prediction Formulations for Variable-Amplitude Loading

Journal of Solar Energy Engineering, 2002
Accurate prediction of lifetime is an increasingly important issue for wind turbine rotor blade materials. Coupon tests with the variable-amplitude standard loading sequences for wind turbines known as WISPER and WISPERX have indicated that the coupon lifetime can be overestimated by one or two orders of magnitude using conventional lifetime prediction
R. P. L. Nijssen, D. R. V. van Delft, A. M. van Wingerde   +2 more
openaire   +1 more source

Isothermal Fatigue Lifetime Prediction of Solder Materials

Mechanics and Materials for Electronic Packaging: Volume 1 — Design and Process Issues in Electronic Packaging, 1994
Abstract Accurate prediction of fatigue lifetime is an essential ingredient in the assessment of structural reliability of existing solder materials and in the design of new ones. A micromechanical method for the prediction of fatigue life of solder was developed by Zubelewicz et al. (1989,1990).
Hareesh Mavoori, Semyon Vaynman, Jason Chin, Brian Moran, Leon M. Keer, Morris E. Fine   +5 more
openaire   +1 more source

Fatigue Lifetime Prediction for Uncertain Systems

1994
Fatigue life prediction deals with factors which can be modeled as random variables, random processes or stochastic fields. Given a probabilistic definition of these factors, the life distribution results from a reliability analysis. The advanced mean value first order (AMVFO) method was suggested to minimize the number of functions to be evaluated in ...
F. Casciati, COLOMBI, PIERLUIGI
openaire   +2 more sources

Lifetime Prediction for Fatigue Damage in Bonded Joints

Key Engineering Materials, 2003
A procedure is outlined and programmed in software in order to predict the fatigue threshold in composite adhesively bonded joints. Two different joint configurations are considered in this study, namely, Double Lap (DL) and Lap Strap (LS). The substrates are made of either uni-directional (UD) or multi-directional (MD) composite laminates and bonded ...
M.M. Abdel Wahab, Ian A. Ashcroft, A.D. Crocombe, L. Joussot   +3 more
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source

Lifetime Prediction Under Creep-Fatigue Conditions

1987
A model for predicting low-cycle fatigue life under creep-fatigue interaction is suggested. The reduction in fatigue life in this region is caused by the nucleation and growth of grain boundary cavities. The crack advance will be unstable if the crack tip opening displacement becomes equal to a critical cavity configuration.
K.-T. Rie, R.-M. Schmidt
openaire   +1 more source

Relating fracture mechanics and fatigue lifetime prediction

Materials Science and Engineering: A, 2016
This article presents how to link together the results of fatigue crack growth tests, analytic fracture mechanics and experimental methods of fatigue lifetime predictions. The study at the beginning investigates the effect of mechanical load redistribution among failed and intact micro-structural bonds along fatigue crack growth to final crack at ...
openaire   +2 more sources