Documents disponibles écrits par cet auteur

Effect of domain perturbations on the critical condition for steady - state thermal explosions / W. R. Batson in Industrial & engineering chemistry research, Vol. 50 N° 23 (Décembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 23 (Décembre 2011) . - pp. 13244-13249 Titre : Effect of domain perturbations on the critical condition for steady - state thermal explosions Type de document : texte imprimé Auteurs : W. R. Batson, Auteur ; L. E. Johns, Auteur ; R. Narayanan, Auteur Année de publication : 2012 Article en page(s) : pp. 13244-13249 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Thermal  explosion  Steady  state  Critical  conditions Résumé : A region heated by a temperature-dependent source is said to be stable if the heat conducted to the surroundings can balance the heat generated in the region. The critical value of the Frank-Kamenetskii number gives the limit of stability, the point at which a steady temperature field is no longer possible. Assuming that the critical Frank-Kamenetskii number can be obtained for a symmetric region where the problem is one-dimensional, we present a method for determining how it changes as the region is displaced into a less-symmetric region. We find that the displacement can be either stabilizing or destabilizing. The case of exponential heat generation is fairly well-predicted by the case of linear heat generation. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25267480 [article] Effect of domain perturbations on the critical condition for steady - state thermal explosions [texte imprimé] / W. R. Batson, Auteur ; L. E. Johns, Auteur ; R. Narayanan, Auteur . - 2012 . - pp. 13244-13249. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 23 (Décembre 2011) . - pp. 13244-13249 Mots-clés : Thermal  explosion  Steady  state  Critical  conditions Résumé : A region heated by a temperature-dependent source is said to be stable if the heat conducted to the surroundings can balance the heat generated in the region. The critical value of the Frank-Kamenetskii number gives the limit of stability, the point at which a steady temperature field is no longer possible. Assuming that the critical Frank-Kamenetskii number can be obtained for a symmetric region where the problem is one-dimensional, we present a method for determining how it changes as the region is displaced into a less-symmetric region. We find that the displacement can be either stabilizing or destabilizing. The case of exponential heat generation is fairly well-predicted by the case of linear heat generation. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=25267480

Instability and strength of monosymmetric i beams / Mohamed Benchiha 

Public ISBD Titre : Instability and strength of monosymmetric i beams Type de document : texte imprimé Auteurs : Mohamed Benchiha, Auteur ; T. M. Roberts, Directeur de thèse ; R. Narayanan, Directeur de thèse Editeur : University College, Cardiff Année de publication : 1986 Importance : 87 f. Présentation : ill. Format : 27 cm. Note générale : Mémoire de Master : Civil and Structural Engineering : Angleterre, University College, Cardiff : 1986 Annexe f. 88 - 90 . Bibliogr. [4] f Langues : Anglais (eng) Mots-clés : Monosymmetric  I-beams Flexural-torsional  instability Pre-buckling  displacement Initial  imperfections Doubly  symmetric  I  beams Index. décimale : Ms00186 Résumé : This thesis is concerned with the problem of flexural-torsional or lateral instability of monosymmetric I-beams. A theoretical and experimental investigation on the subject has been carried out. The energy approach has been used to obtain solutions for the flexural-torsional instability of monosymmetric I beams, including the influence of pre-buckling displacement, and initial imperfections or pre-camber in the plane of major axis bending. Forty-six welded small-scale model beams, including fourteen doubly symmetric I beams, sixteen monosymmetric I beams and sixteen T beams have been tested. All the beams were simply supported and loaded by a central concentrated load applied on the top flange. The test results are compared with existing design curves for laterally unrestrained beams recommended by the European Convention for Constructional Steelwork (ECCS) and the British Standard Specification for the Structural Steelwork in Building. The lower bound design curve recommended by ECCS is in good agreement with the test data presented in this thesis. Instability and strength of monosymmetric i beams [texte imprimé] / Mohamed Benchiha, Auteur ; T. M. Roberts, Directeur de thèse ; R. Narayanan, Directeur de thèse . - [S.l.] : University College, Cardiff, 1986 . - 87 f. : ill. ; 27 cm. Mémoire de Master : Civil and Structural Engineering : Angleterre, University College, Cardiff : 1986 Annexe f. 88 - 90 . Bibliogr. [4] f Langues : Anglais (eng) Mots-clés : Monosymmetric  I-beams Flexural-torsional  instability Pre-buckling  displacement Initial  imperfections Doubly  symmetric  I  beams Index. décimale : Ms00186 Résumé : This thesis is concerned with the problem of flexural-torsional or lateral instability of monosymmetric I-beams. A theoretical and experimental investigation on the subject has been carried out. The energy approach has been used to obtain solutions for the flexural-torsional instability of monosymmetric I beams, including the influence of pre-buckling displacement, and initial imperfections or pre-camber in the plane of major axis bending. Forty-six welded small-scale model beams, including fourteen doubly symmetric I beams, sixteen monosymmetric I beams and sixteen T beams have been tested. All the beams were simply supported and loaded by a central concentrated load applied on the top flange. The test results are compared with existing design curves for laterally unrestrained beams recommended by the European Convention for Constructional Steelwork (ECCS) and the British Standard Specification for the Structural Steelwork in Building. The lower bound design curve recommended by ECCS is in good agreement with the test data presented in this thesis.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
Ms00186	Ms00186	Papier	Bibliothèque centrale	Mémoire de Master	Disponible

Documents numériques

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