Results 271 to 280 of about 69,238 (318)

A digital twin feasibility study (Part I): Non-deterministic predictions of fatigue life in aluminum alloy 7075-T651 using a microstructure-based multi-scale model

, 2020
The Digital Twin (DT) concept has the potential to revolutionize the way systems and their components are designed, managed, maintained, and operated across a vast number of fields from engineering to healthcare.
Saikumar R. Yeratapally, P. Leser, J. D. Hochhalter, W. Leser, T. J. Ruggles   +4 more
semanticscholar   +1 more source

A coupled crack initiation and propagation numerical procedure for combined fretting wear and fretting fatigue lifetime assessment

Theoretical and applied fracture mechanics (Print), 2019
This work presents a numerical procedure for combined fretting wear and fretting fatigue problems. It combines the Archard wear model and the Smith-Watson-Topper fatigue indicator parameter with the Miner damage rule for crack nucleation estimation.
I. Llavori, A. Zabala, M. A. Urchegui, W. Tato, X. Gómez   +4 more
semanticscholar   +1 more source

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

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

Modelling of automotive steel fatigue lifetime by machine learning method

International Workshop on Information Technologies: Theoretical and Applied Problems
In the current study, the fatigue life of QSTE340TM steel was modelled using a machine learning method, namely, a neural network. This problem was solved by a Multi-Layer Perceptron (MLP) neural network with a 3-75-1 architecture, which allows the ...
O. Yasniy, Dmytro Tymoshchuk, I. Didych, Nataliya Zagorodna, Olha Malyshevska   +4 more
semanticscholar   +1 more source

Application of Steinberg Model for Vibration Lifetime Evaluation of Sn-Ag-Cu-Based Solder Joints in Power Semiconductors

IEEE Transactions on Components, Packaging, and Manufacturing Technology, 2021
Steinberg-equation-based vibration mechanical fatigue lifetime estimation of the Sn-Ag-Cu-based solder joints was extracted for the power semiconductor modules. In this model, maximum displacement of the printed circuit board (PCB) is used as the failure
M. Kavitha, Z. H. Mahmoud, K. Kishore, A. Petrov, A. Lekomtsev, Pavel Iliushin, A. Zekiy, M. Salmani   +7 more
semanticscholar   +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

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

A stress‐based method to predict lifetime under multiaxial fatigue loadings

Fatigue & Fracture of Engineering Materials & Structures, 2003
ABSTRACTThis paper extends to low/medium‐cycle fatigue a stress‐based method recently proposed by the same authors for high‐cycle multiaxial fatigue assessments. By considering the plane of maximum shear stress amplitude coincident with the microcrack initiation plane, the method requires the calculation both of the maximum shear stress amplitude and ...
LAZZARIN P., SUSMEL, Luca
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