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Author : Ellis L. Krinitzsky
Publisher :
ISBN 13 :
Total Pages : 178 pages
Book Rating : 4.3/5 (91 download)
Download or read book Geology and Geotechnical Properties of Laterite Gravel written by Ellis L. Krinitzsky and published by . This book was released on 1976 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bo Song
Publisher : Springer
ISBN 13 : 3319224522
Total Pages : 265 pages
Book Rating : 4.3/5 (192 download)
Download or read book Dynamic Behavior of Materials, Volume 1 written by Bo Song and published by Springer. This book was released on 2015-10-23 with total page 265 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dynamic Behavior of Materials, Volume 1 represents the first of nine volumes of technical papers presented at the Society for Experimental Mechanics SEM 15th International Congress & Exposition on Experimental and Applied Mechanics, held at Costa Mesa, California, June 8-11, 2015. The full set of proceedings also includes volumes on: Challenges in Mechanics of Time Dependent Materials, Advancement of Optical Methods in Experimental Mechanics, Experimental and Applied Mechanics 16th International Symposium on MEMS and Nanotechnology, 5th International Symposium on the Mechanics of Biological Systems and Materials, International Symposium on the Mechanics of Composite and Multi-functional Materials, Fracture, Fatigue, Failure and Damage Evolution; and Residual Stress, Thermomechanics & Infrared Imaging, Hybrid Techniques and Inverse Problems.
Author : Ladislas Kubin
Publisher : OUP Oxford
ISBN 13 : 0191664545
Total Pages : 320 pages
Book Rating : 4.1/5 (916 download)
Download or read book Dislocations, Mesoscale Simulations and Plastic Flow written by Ladislas Kubin and published by OUP Oxford. This book was released on 2013-04-18 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past twenty years, new experimental approaches, improved models and progress in simulation techniques brought new insights into long-standing issues concerning dislocation-based plasticity in crystalline materials. During this period, three-dimensional dislocation dynamics simulations appeared and reached maturity. Their objectives are to unravel the relation between individual and collective dislocation processes at the mesoscale, to establish connections with atom-scale studies of dislocation core properties and to bridge, in combination with modelling, the gap between defect properties and phenomenological continuum models for plastic flow. Dislocation dynamics simulations are becoming accessible to a wide range of users. This book presents to students and researchers in materials science and mechanical engineering a comprehensive coverage of the physical body of knowledge on which they are based. It includes classical studies, which are too often ignored, recent experimental and theoretical advances, as well as a discussion of selected applications on various topics.
Author : Édouard Parant
Publisher : LCPC
ISBN 13 : 9782720803789
Total Pages : 245 pages
Book Rating : 4.8/5 (37 download)
Download or read book Mécanismes d'endommagement et comportements mécaniques d'un composite cimentaire fibré multi-échelles sous sollicitations sévères written by Édouard Parant and published by LCPC. This book was released on 2004 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce travail porte sur l'étude du comportement mécanique et des mécanismes d'endommagement d'un composite cimentaire fibré multi-échelles soumis à des sollicitations sévères : fatigue, choc et fluage en ambiance agressive. L'analyse des mécanismes de fissuration des matrices cimentaires conduit à l'utilisation de trois dimensions de fibres métalliques afin d'intervenir à chaque étape du processus de fissuration. La matrice cimentaire est ultra-compacte et résistante (sbc > 200 MPa) et la fraction volumique du renfort atteint 11 %. Le renfort multi-échelles se caractérise par la mise en action graduelle et continue des différentes échelles de fibres jusqu'au pic d'effort. Une détermination de la résistance en traction uniaxiale (> 20 MPa) à partir d'essais de flexion 4 points sur dalles minces en utilisant une approche inverse est validée. Il est montré que le matériau étudié est élasto-plastique avec écrouissage positif en traction. Le renfort multi-échelles, et particulièrement les micro-fibres, amplifient les phénomènes visqueux dans la matrice cimentaire en y améliorant le transfert des efforts. Le gain absolu de résistance en traction, sous sollicitations dynamiques, est estimé par approche inverse à 1,5 Mpa/u.log. Le comportement en fatigue est limité par le faible élancement des méso-fibres. Une corrélation forte existe entre la durée de vie en fatigue et l'état d'endommagement initial (premier chargement statique). Une courbe de Wöhler corrigée est reconstruite connaissant le comportement statique caractéristique et l'état initial de déformation des corps d'épreuve. Sous sollicitation de service, la fissuration fine et diffuse, induite par l'efficacité du renfort multi-échelles, conduit à une cicatrisation presque totale en présence d'eau de corps d'épreuve pré-endommagés par fatigue et maintenus chargés en solution saline.
