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Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics最新文献

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Mise en évidence par granularité en lumière blanche de phénomènes de multilocalisation de la déformation pour les bétons de poudres réactives sollicités en traction 用白光粒度证明了受拉伸作用的活性粉末混凝土的多局部变形现象
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-12-01 DOI: 10.1016/S1620-7742(01)01416-7
Vincent Huon , Olivier Maisonneuve , Bertrand Wattrisse , Jean Michel Muracciole
{"title":"Mise en évidence par granularité en lumière blanche de phénomènes de multilocalisation de la déformation pour les bétons de poudres réactives sollicités en traction","authors":"Vincent Huon ,&nbsp;Olivier Maisonneuve ,&nbsp;Bertrand Wattrisse ,&nbsp;Jean Michel Muracciole","doi":"10.1016/S1620-7742(01)01416-7","DOIUrl":"10.1016/S1620-7742(01)01416-7","url":null,"abstract":"<div><p>From kinematic observations by granularity in whiting light mode based on a technique of digital speckle images correlation, the behaviour in tension of a reactive powders concrete is studied. The measures show several localisation areas of the deformation fields and the role of the fibres in the transmission of the stresses in the neighbourhood of a damaged area.</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 12","pages":"Pages 897-900"},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01416-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82650844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Deviation of the modal waves excited by an ultrasonic monochromatic beam in an anisotropic layer 超声单色光束在各向异性层中激发的模态波的偏差
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-11-01 DOI: 10.1016/S1620-7742(01)01404-0
Catherine Potel, Philippe Gatignol, Jean-François de Belleval
{"title":"Deviation of the modal waves excited by an ultrasonic monochromatic beam in an anisotropic layer","authors":"Catherine Potel,&nbsp;Philippe Gatignol,&nbsp;Jean-François de Belleval","doi":"10.1016/S1620-7742(01)01404-0","DOIUrl":"10.1016/S1620-7742(01)01404-0","url":null,"abstract":"<div><p>The aim of the Note is to describe the physical phenomenon of the excitation of modal waves, such as Lamb waves, in anisotropic media by a monochromatic incident beam, and to explain the deviation of the modal wave beam so created. Using a stationary phase approach, the modal wave beam is found to be deviated in the direction normal to the modal slowness curve. Due to the anisotropy, this direction is no longer in the sagittal plane.</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 11","pages":"Pages 815-822"},"PeriodicalIF":0.0,"publicationDate":"2001-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01404-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84829741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Evaluation de la fraction volumique locale de la phase solide dans un écoulement diphasique 两相流动中固相局部体积分数的评价
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-11-01 DOI: 10.1016/S1620-7742(01)01408-8
Corinne Bounhoure, Yves Brunet, Alain Merlen
{"title":"Evaluation de la fraction volumique locale de la phase solide dans un écoulement diphasique","authors":"Corinne Bounhoure,&nbsp;Yves Brunet,&nbsp;Alain Merlen","doi":"10.1016/S1620-7742(01)01408-8","DOIUrl":"10.1016/S1620-7742(01)01408-8","url":null,"abstract":"<div><p>Local particle volume fraction measurements in two-phase flows are rare. Generally, the concentration is supposed to be spatially homogeneous in the sedimentation flows fundamental experiments. This is far to be realistic in regimes different from Stokes' regime, particularly near the walls. This paper compares two methods of evaluation of the volume fraction in a three-dimensional two-phase flow.</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 11","pages":"Pages 829-834"},"PeriodicalIF":0.0,"publicationDate":"2001-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01408-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81720969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Sloshing problem in a half-plane covered by a dock with two gaps: monotonicity and asymptotics of eigenvalues 双间隙船坞覆盖半平面上的晃动问题:特征值的单调性和渐近性
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-11-01 DOI: 10.1016/S1620-7742(01)01399-X
Nikolay Kuznetsov, Oleg Motygin
{"title":"Sloshing problem in a half-plane covered by a dock with two gaps: monotonicity and asymptotics of eigenvalues","authors":"Nikolay Kuznetsov,&nbsp;Oleg Motygin","doi":"10.1016/S1620-7742(01)01399-X","DOIUrl":"10.1016/S1620-7742(01)01399-X","url":null,"abstract":"<div><p>The two-dimensional sloshing problem is considered in a half-plane covered by a rigid dock with two symmetric gaps. It is proved that the antisymmetric (symmetric) sloshing eigenvalues are monotonically decreasing (increasing) functions of spacing between gaps and formulae for their derivatives are obtained.</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 11","pages":"Pages 791-796"},"PeriodicalIF":0.0,"publicationDate":"2001-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01399-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74883722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Modelling an abrasive wear experiment by the boundary element method 用边界元法模拟磨料磨损实验
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-11-01 DOI: 10.1016/S1620-7742(01)01402-7
Ingrid Serre , Marc Bonnet , Radrel-Marie Pradeilles-Duval
{"title":"Modelling an abrasive wear experiment by the boundary element method","authors":"Ingrid Serre ,&nbsp;Marc Bonnet ,&nbsp;Radrel-Marie Pradeilles-Duval","doi":"10.1016/S1620-7742(01)01402-7","DOIUrl":"10.1016/S1620-7742(01)01402-7","url":null,"abstract":"<div><p>This Note presents a computational technique for simulating friction-induced wear in a tribology experiment on a plan/plan, ring-on-disc contact configuration. The boundary element method results in modest computing times and facilitates the mesh modifications used for tracking the wear profile evolution. A typical wear simulation result is presented and discussed.</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 11","pages":"Pages 803-808"},"PeriodicalIF":0.0,"publicationDate":"2001-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01402-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79668001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Approche statistique du tenseur des contraintes par le viriel généralisé 广义维里应力张量的统计方法
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-11-01 DOI: 10.1016/S1620-7742(01)01391-5
Paul Jouanna, Stéphane Brocas
{"title":"Approche statistique du tenseur des contraintes par le viriel généralisé","authors":"Paul Jouanna,&nbsp;Stéphane Brocas","doi":"10.1016/S1620-7742(01)01391-5","DOIUrl":"10.1016/S1620-7742(01)01391-5","url":null,"abstract":"<div><p>The classical virial theorem, applied to particles without internal structure, is used to make a direct statistical estimation of a fluid pressure avoiding a thermodynamical potential derivation. Generalising this theorem to structured media leads to a direct statistical estimation of the stress tensor.</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 11","pages":"Pages 775-782"},"PeriodicalIF":0.0,"publicationDate":"2001-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01391-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78666426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Fissuration multiple par corrosion sous contrainte : Modélisation du comportement mécanique par une méthode d'homogénéisation 应力腐蚀下的多裂:用均质化方法模拟力学行为
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-11-01 DOI: 10.1016/S1620-7742(01)01406-4
Marie Touzet , Isabelle Aubert , Franck Le Poulain , Monique Puiggali , Paul Lipinski
{"title":"Fissuration multiple par corrosion sous contrainte : Modélisation du comportement mécanique par une méthode d'homogénéisation","authors":"Marie Touzet ,&nbsp;Isabelle Aubert ,&nbsp;Franck Le Poulain ,&nbsp;Monique Puiggali ,&nbsp;Paul Lipinski","doi":"10.1016/S1620-7742(01)01406-4","DOIUrl":"10.1016/S1620-7742(01)01406-4","url":null,"abstract":"<div><p>Stress Corrosion Cracking (SCC) phenomenon is characterised by initiation and propagation of surface cracks frequently multiple. In order to model the mechanical behaviour of such materials we propose, as for composites, the use of homogenization techniques. Two materials are considered, first one corresponding to the cracked external volume and the second to the internal safe material. The cracked volume is considered as a two phase material, i.e., elastic matrix containing elliptical voids. The overall behaviour of the equivalent material is obtained applying the usual homogenization rules. Comparison between simulations and experimental results is done.</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 11","pages":"Pages 823-828"},"PeriodicalIF":0.0,"publicationDate":"2001-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01406-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74336724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Quadratic approximants in the asymptotic numerical method 渐近数值方法中的二次逼近
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-11-01 DOI: 10.1016/S1620-7742(01)01403-9
Rédouane Jamai, Noureddine Damil
{"title":"Quadratic approximants in the asymptotic numerical method","authors":"Rédouane Jamai,&nbsp;Noureddine Damil","doi":"10.1016/S1620-7742(01)01403-9","DOIUrl":"10.1016/S1620-7742(01)01403-9","url":null,"abstract":"<div><p>Quadratic approximants [5] are used to increase the range of validity of a vectorial series. We present an application in the framework of the asymptotic numerical method [1].</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 11","pages":"Pages 809-814"},"PeriodicalIF":0.0,"publicationDate":"2001-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01403-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87213895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Étude expérimentale des champs turbulents acoustiques à l'immédiat aval d'une onde de choc 激波直接下游声湍流场的实验研究
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-11-01 DOI: 10.1016/S1620-7742(01)01398-8
Bruno Auvity, Stéphane Barre, Patrick Braud, Jean-Paul Bonnet
{"title":"Étude expérimentale des champs turbulents acoustiques à l'immédiat aval d'une onde de choc","authors":"Bruno Auvity,&nbsp;Stéphane Barre,&nbsp;Patrick Braud,&nbsp;Jean-Paul Bonnet","doi":"10.1016/S1620-7742(01)01398-8","DOIUrl":"10.1016/S1620-7742(01)01398-8","url":null,"abstract":"<div><p>An original measurement technique based on Rayleigh scattering (Collective Light Scattering) was used in the flow conditions of a normal Mach 2.85 shock wave/homogeneous turbulence interaction. The experimental investigation was limited to the region just downstream of the shock. A non-dimensional attenuation law for the evanescent acoustic waves was found using CLS measurements. This law is significantly different from the one predicted by the Linear Interaction Analysis. However, it was confirmed by hot-wire measurements for which quite severe assumptions were used.</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 11","pages":"Pages 783-789"},"PeriodicalIF":0.0,"publicationDate":"2001-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01398-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76782813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A finite deformation second gradient theory of plasticity 有限变形的二次梯度塑性理论
Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics Pub Date : 2001-11-01 DOI: 10.1016/S1620-7742(01)01400-3
René Chambon , Denis Caillerie , Claudio Tamagnini
{"title":"A finite deformation second gradient theory of plasticity","authors":"René Chambon ,&nbsp;Denis Caillerie ,&nbsp;Claudio Tamagnini","doi":"10.1016/S1620-7742(01)01400-3","DOIUrl":"10.1016/S1620-7742(01)01400-3","url":null,"abstract":"<div><p>Extending the previous work by Chambon et al. [2] to the finite deformation regime, a local second gradient theory of plasticity for <em>isotropic</em> materials with microstructure is developed based on the <em>multiplicative</em> decomposition of the deformation gradient, the <em>additive</em> decomposition of the second deformation gradient and the principle of maximum dissipation.</p></div>","PeriodicalId":100302,"journal":{"name":"Comptes Rendus de l'Académie des Sciences - Series IIB - Mechanics","volume":"329 11","pages":"Pages 797-802"},"PeriodicalIF":0.0,"publicationDate":"2001-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1620-7742(01)01400-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74961701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 22
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