Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Jean-François Debongnie"'
Publikováno v:
International Journal for Numerical Methods in Engineering. 81:513-536
This study presents a general procedure of creating pure equilibrium tetrahedral finite elements for use under the elastostatic hypothesis. These pure equilibrium elements are of the Fraeijs de Veubeke type and the degree of the polynomial approximat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7818b22ba7fc625e6fd03d146481bfa
https://doi.org/10.1002/nme.2703
https://doi.org/10.1002/nme.2703
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 197:1184-1203
A quadrilateral element with smoothed curvatures for Mindlin–Reissner plates is proposed. The curvature at each point is obtained by a non-local approximation via a smoothing function. The bending stiffness matrix is calculated by a boundary integr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ee4c1753664d67dea73e446dbaad3176
https://doi.org/10.1016/j.cma.2007.10.008
https://doi.org/10.1016/j.cma.2007.10.008
Publikováno v:
International Journal of Machine Tools and Manufacture. 47:1493-1496
This article presents a new stability prediction tool. The method is based on the dynamic behaviour of both milling tool and workpiece, computed using finite element method. Dynamic behaviour is expressed under the form of transfer functions and used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38aac654901f3a5bf6677816e909032c
https://doi.org/10.1016/j.ijmachtools.2006.09.026
https://doi.org/10.1016/j.ijmachtools.2006.09.026
Autor:
Jean-François Debongnie, Luc Masset
Publikováno v:
Journal of Computational and Applied Mathematics. 168:309-320
The paper presents a simulation tool designed to predict form errors of part surfaces obtained by face milling and turning processes. For these operations, the form error is often due to the flexibility of the workpiece and its supports. The finite e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf89f82eb9f960f738c21bc5af843099
https://doi.org/10.1016/j.cam.2003.06.010
https://doi.org/10.1016/j.cam.2003.06.010
Publikováno v:
Revue Européenne des Éléments Finis. 13:547-558
L'estimation d'erreur par analyse duale pure necessite un double calcul par elements finnis base sur des approches de types deplacement et equilibre d'un meme probleme. Elle permet d'obtenir la valeur de l'erreur de discretisation globale cumulee des
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac981c927ea58309b66a0684c86015ae
https://doi.org/10.3166/reef.13.547-558
https://doi.org/10.3166/reef.13.547-558
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 122:183-192
The dual analysis concept was introduced by Fraeijs de Veubeke [1] as a consequence of upper and lower bounds of the energy. As such bounds exist only in those cases where one type of condition is homogeneous, it is commonly admitted that a dual erro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f563b1d61a54ea1c6c359024347e819a
https://doi.org/10.1016/0045-7825(94)00726-4
https://doi.org/10.1016/0045-7825(94)00726-4
Autor:
Jean-François Debongnie
Publikováno v:
Volume 2: 26th Design Automation Conference.
The gradient method, often used in design against fatigue, is analyzed from the point of view of its link with fracture mechanics. By a logical step, a law is deduced for the variation of the endurance limit in terms of the relative stress gradient.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c21193c24e7a9da699a5243fdde527a5
https://doi.org/10.1115/detc2000/dac-14500
https://doi.org/10.1115/detc2000/dac-14500
Publikováno v:
Volume 1: 25th Design Automation Conference.
A method is proposed for predicting form errors due to both clamping and cutting forces in face milling and turning. It allows complex tool trajectories and workpiece geometries. Error computation is performed by the finite element method. An experim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::013b92aa11a4b232e6b17f4e2bd4f1af
https://doi.org/10.1115/detc99/dac-8692
https://doi.org/10.1115/detc99/dac-8692
Autor:
Luc Masset, Jean-François Debongnie
Publikováno v:
Volume 1: 25th Design Automation Conference.
Owing to the fact that a correct evaluation of form errors is particularly difficult by the classical ways, it seems more efficient to develop numerical algorithms from 3D measures. Several methods are described, including direct and iterative ones.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7156b21405c552610f90218d70d1338
https://doi.org/10.1115/detc99/dac-8693
https://doi.org/10.1115/detc99/dac-8693
Autor:
Jean-François Debongnie
Publikováno v:
International Journal of Engineering Science. 17:387-399
Marguerre's shallow shell theory is interpreted by the means of the introduction of a “fictitious initial displacement”. A logical interpretation of Marguerre's equilibrium equations follows directly from this point of view. The introduction of f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::774170a7166a3dd2625e87f2ed1eaf4d
https://doi.org/10.1016/0020-7225(79)90075-2
https://doi.org/10.1016/0020-7225(79)90075-2