Detailansicht
Introduction to the Thermodynamically Constrained Averaging Theory for Porous Medium Systems
eBook - Advances in Geophysical and Environmental Mechanics and Mathematics
ISBN/EAN: 9783319040103
Umbreit-Nr.: 9280531
Sprache:
Englisch
Umfang: 0 S., 6.77 MB
Format in cm:
Einband:
Keine Angabe
Erschienen am 19.02.2014
Auflage: 1/2014
E-Book
Format: PDF
DRM: Digitales Wasserzeichen
- Zusatztext
- Thermodynamically constrained averaging theory provides a consistent method for upscaling conservation and thermodynamic equations for application in the study of porous medium systems. The method provides dynamic equations for phases, interfaces, and common curves that are closely based on insights from the entropy inequality. All larger scale variables in the equations are explicitly defined in terms of their microscale precursors, facilitating the determination of important parameters and macroscale state equations based on microscale experimental and computational analysis. The method requires that all assumptions that lead to a particular equation form be explicitly indicated, a restriction which is useful in ascertaining the range of applicability of a model as well as potential sources of error and opportunities to improve the analysis.
- Kurztext
- This book presents novel methods for the simulation of damage evolution in aerospace composites that will assist in predicting damage onset and growth and thus foster less conservative designs which realize the promised economic benefits of composite materials. The presented integrated numerical/experimental methodologies are capable of taking into account the presence of damage and its evolution in composite structures from the early phases of the design (conceptual design) through to the detailed finite element method analysis and verification phase. The book is based on the GARTEUR Research Project AG-32, which ran from 2007 to 2012, and documents the main results of that project. In addition, the state of the art in European projects on damage evolution in composites is reviewed. While the high specific strength and stiffness of composite materials make them suitable for aerospace structures, their sensitivity to damage means that designing with composites is a challenging task. The new approaches described here will prove invaluable in meeting that challenge.