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New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions

2014-07-31 Technology & Engineering
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Release : 2014-07-31
Genre : Technology & Engineering
Kind : eBook
Book Rating : 368/5 ( reviews)

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Book Synopsis New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions by : Theo Fett

Download or read book New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions written by Theo Fett. This book was released on 2014-07-31. Available in PDF, EPUB and Kindle. Book excerpt: Most ceramics show an increase of the crack growth resistance during crack propagation (R-curve behaviour). Reasons for such behaviour are bridging effects between opposite crack surfaces, phase transformations around the tip of a crack, and development of micro-cracking zones.This booklet predominantly deals with the bridging behaviour and the discussion of the observed effects in terms of the fracture mechanics weight function procedure.

New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions

2012
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Release : 2012
Genre :
Kind : eBook
Book Rating : /5 ( reviews)

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Book Synopsis New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions by : Theo Fett

Download or read book New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions written by Theo Fett. This book was released on 2012. Available in PDF, EPUB and Kindle. Book excerpt:

Dental Ceramics

2022-07-01 Medical
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Release : 2022-07-01
Genre : Medical
Kind : eBook
Book Rating : 878/5 ( reviews)

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Book Synopsis Dental Ceramics by : Ulrich Lohbauer

Download or read book Dental Ceramics written by Ulrich Lohbauer. This book was released on 2022-07-01. Available in PDF, EPUB and Kindle. Book excerpt: This book is an evidence-based update on recent most significant advances in dental ceramics, specifically related to the relationships between composition, microstructure and mechanical behavior. Readers will find an introduction to the chemistry of dental ceramics as well as information about the technological progress and practical requirements restorative materials need to satisfy for long-lasting structural integrity. The book uses mechanistic approaches to address failure mechanisms from controlled experiments thus providing the tools for the application of sound research methodologies in the field. It is targeted for researcher and dentists interested in the field of dental ceramic materials and fracture mechanics.

Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries

2021-09-27 Technology & Engineering
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Release : 2021-09-27
Genre : Technology & Engineering
Kind : eBook
Book Rating : 022/5 ( reviews)

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Book Synopsis Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries by : Zhang, Tao

Download or read book Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries written by Zhang, Tao. This book was released on 2021-09-27. Available in PDF, EPUB and Kindle. Book excerpt: Most storage materials exhibit phase changes, which cause stresses and, thus, lead to damage of the electrode particles. In this work, a phase-field model for the cathode material NaxFePO4 of Na-ion batteries is studied to understand phase changes and stress evolution. Furthermore, we study the particle size and SOC dependent miscibility gap of the nanoscale insertion materials. Finally, we introduce the nonlocal species concentration theory, and show how the nonlocality influences the results.

The Effects of Internal Stress and Lithium Transport on Fracture in Storage Materials in Lithium-Ion Batteries

2016-03-08 Technology (General)
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Release : 2016-03-08
Genre : Technology (General)
Kind : eBook
Book Rating : 553/5 ( reviews)

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Book Synopsis The Effects of Internal Stress and Lithium Transport on Fracture in Storage Materials in Lithium-Ion Batteries by : Klinsmann, Markus

Download or read book The Effects of Internal Stress and Lithium Transport on Fracture in Storage Materials in Lithium-Ion Batteries written by Klinsmann, Markus. This book was released on 2016-03-08. Available in PDF, EPUB and Kindle. Book excerpt: Fracture of storage particles is considered to be one of the major reasons for capacity fade and increasing power loss in Li-ion batteries. In this work, we tackle the problem by merging a coupled model of mechanical stress and diffusion of Li-ions with a phase field description of an evolving crack. The novel approach allows us to study the evolution of the Li concentration together with the initiation and growth of a crack in an arbitrary geometry and without presuming a specific crack path.

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