Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Sylvain Lacaze"'
Publikováno v:
Composite Structures. 179:695-704
This study deals with the influence of manufacturing-induced geometric variability on the identification of material properties of composite sandwich panels. The objective of this article is twofold. First, this work aims to demonstrate the marked in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4768c40600c93e054b2953b3fabebc50
https://doi.org/10.1016/j.compstruct.2017.07.020
https://doi.org/10.1016/j.compstruct.2017.07.020
Autor:
Sylvain Lacaze, Samy Missoum
Publikováno v:
Probabilistic Engineering Mechanics. 38:13-21
This paper introduces a new approach for parameter estimation and model update based on the notion of fidelity maps. Fidelity maps refer to the regions of the parameter space within which the discrepancy between computational and experimental data is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a29d4d9f2ae1c14157b082bdc3837f43
https://doi.org/10.1016/j.probengmech.2014.08.002
https://doi.org/10.1016/j.probengmech.2014.08.002
Autor:
Samy Missoum, Sylvain Lacaze
Publikováno v:
Structural and Multidisciplinary Optimization. 49:683-687
This brief note describes the generalization of the “max-min” sample that was originally used in the update of approximated feasible or failure domains. The generalization stems from the use of the random variables joint distribution in the sampl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6817049b0d434355fa66003f4215a4ba
https://doi.org/10.1007/s00158-013-1011-9
https://doi.org/10.1007/s00158-013-1011-9
Publikováno v:
Journal of Mechanical Design. 138
The design of complex systems often requires reliability assessments involving a large number of uncertainties and low probability of failure estimations (in the order of 10−4). Estimating such rare event probabilities with crude Monte Carlo (CMC)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef02532df5c5d7a978ec1bc8ec71f435
https://doi.org/10.1115/1.4034106
https://doi.org/10.1115/1.4034106
Complex simulation codes such as the ones used in aerospace industry are often computationally expensive and involve a large number of variables. These features significantly hamper the estimation of rare event probabilities. To reduce the computatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e107779f9d72ccc02346d8534b68eba
https://doi.org/10.1016/b978-0-08-100091-5.00008-3
https://doi.org/10.1016/b978-0-08-100091-5.00008-3
Publikováno v:
Structural and Multidisciplinary Optimization. 46:201-221
This paper presents a methodology for constrained efficient global optimization (EGO) using support vector machines (SVMs). While the objective function is approximated using Kriging, as in the original EGO formulation, the boundary of the feasible d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed60b7e527610cb226f72eecb0aba31f
https://doi.org/10.1007/s00158-011-0745-5
https://doi.org/10.1007/s00158-011-0745-5
Publikováno v:
Structural and Multidisciplinary Optimization
Structural and Multidisciplinary Optimization, Springer Verlag (Germany), 2015, 52, p. 375-381. ⟨10.1007/s00158-015-1232-1⟩
Structural and Multidisciplinary Optimization, Springer Verlag (Germany), 2015, 52, p. 375-381. ⟨10.1007/s00158-015-1232-1⟩
International audience; This note introduces a derivation of the sensitivities of a probability of failure with respect to decision variables. For instance, the gradient of the probability of failure with respect to deterministic design variables mig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6293ef749eebb0022ebed174fbc7f745
https://hal.archives-ouvertes.fr/hal-01232446
https://hal.archives-ouvertes.fr/hal-01232446
Autor:
Samy Missoum, Sylvain Lacaze
Publikováno v:
Volume 1A: 34th Computers and Information in Engineering Conference.
This paper introduces a novel approach for reliability assessment with dependent variables. In this work, the boundary of the failure domain, for a computational problem with expensive function evaluations, is approximated using a Support Vector Mach
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9158545c9694fd7226489288a41fbac
https://doi.org/10.1115/detc2014-34051
https://doi.org/10.1115/detc2014-34051
Publikováno v:
AIP Conference Proceedings.
ATHENA2D is a finite element code dedicated to the wave propagation simulation. The good agreement between experimental and simulated data necessitates the use of accurate input data. Generally the input data are provided by experimental measurements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::533f52255e6cd74d335b3acad221e1fc
https://doi.org/10.1063/1.4789164
https://doi.org/10.1063/1.4789164
Publikováno v:
Ultrasonics. 54(4)
For comprehension purpose, numerical computations are more and more used to simulate the propagation phenomena observed during experimental inspections. However, the good agreement between experimental and simulated data necessitates the use of accur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e01983f2f4346c753e20cf292ada84c
https://pubmed.ncbi.nlm.nih.gov/24434115
https://pubmed.ncbi.nlm.nih.gov/24434115