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

Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions PDF full book. Access full book title New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions by Theo Fett. Download full books in PDF and EPUB format.

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

New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions PDF Author: Theo Fett
Publisher: KIT Scientific Publishing
ISBN: 3866448368
Category : Technology & Engineering
Languages : en
Pages : 250

Book Description
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

New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions PDF Author: Theo Fett
Publisher: KIT Scientific Publishing
ISBN: 3866448368
Category : Technology & Engineering
Languages : en
Pages : 250

Book Description
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

New Contributions to R-curves and Bridging Stresses - Applications of Weight Functions PDF Author: Theo Fett
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

Book Description


Dental Ceramics

Dental Ceramics PDF Author: Ulrich Lohbauer
Publisher: Springer Nature
ISBN: 3030946878
Category : Medical
Languages : en
Pages : 134

Book Description
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

Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries PDF Author: Zhang, Tao
Publisher: KIT Scientific Publishing
ISBN: 3731510022
Category : Technology & Engineering
Languages : en
Pages : 224

Book Description
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

The Effects of Internal Stress and Lithium Transport on Fracture in Storage Materials in Lithium-Ion Batteries PDF Author: Klinsmann, Markus
Publisher: KIT Scientific Publishing
ISBN: 3731504553
Category : Technology (General)
Languages : en
Pages : 246

Book Description
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.

Advances in Ceramic Biomaterials

Advances in Ceramic Biomaterials PDF Author: Paola Palmero
Publisher: Woodhead Publishing
ISBN: 0081008821
Category : Technology & Engineering
Languages : en
Pages : 501

Book Description
Bioceramics are an important class of biomaterials. Due to their desirable attributes such as biocompatibility and osseointegration, as well as their similarity in structure to bone and teeth, ceramic biomaterials have been successfully used in hard tissue applications. In this book, a team of materials research scientists, engineers, and clinicians bridge the gap between materials science and clinical commercialization providing integrated coverage of bioceramics, their applications and challenges. The book is divided into three parts. The first part is a review of classes of medical-grade ceramic materials, their synthesis and processing as well as methods of property assessment. The second part contains a review of ceramic medical products and devices developed, their evolution, their clinical applications and some of the lessons learned from decades of clinical use. The third part outlines the challenges to improve performance and the directions that novel approaches and advanced technologies are taking, to meet these challenges. With a focus on the dialogue between surgeons, engineers, material scientists, and biologists, this book is a valuable resource for researchers and engineers working toward long-lasting, reliable, customized biomedical ceramic and composites devices. - Edited by a team of experts with expertise in industry and academia - Compiles the most relevant aspects on regulatory issues, standards and engineering of bioceramic medical devices as inspired by commercial and clinical needs - Introduces bioceramics, their evolution and applications in hard tissue engineering and medical devices

Investigations on Joule heating applications by multiphysical continuum simulations in nanoscale systems

Investigations on Joule heating applications by multiphysical continuum simulations in nanoscale systems PDF Author: Feuchter, Manuel Klaus Ludwig
Publisher: KIT Scientific Publishing
ISBN: 3731502615
Category : Technology & Engineering
Languages : en
Pages : 258

Book Description
This work furthers the overall understanding of a 3w-measurement, by considering previously unexamined macroscopic influence factors within measurement by Finite Element simulations (FES). Moreover, new measuring configurations are developed to determine (an)isotropic thermal conductivities of nanoscale samples. Since no analytic solutions are available for these configurations, a new evaluation methodology is presented to determine emergent thermal conductivities by FES and Neural Networks.

Consequences of hydroxyl generation by the silica/water reaction - Part I: Diffusion and Swelling

Consequences of hydroxyl generation by the silica/water reaction - Part I: Diffusion and Swelling PDF Author: Fett, Theo
Publisher: KIT Scientific Publishing
ISBN: 3731511487
Category : Science
Languages : en
Pages : 226

Book Description
Water diffusing into silica surfaces gives rise for several effectson diffusion behaviour and mechanical properties. Water added to silica glass increases its specific volume so that the silica expands near the surface. Mechanical boundary conditions give rise for compressive “swelling stresses”. This fact provides a tool for the interpretation of many experimental observations from literature.

Consequences of hydroxyl generation by the silica/water reaction - Part II: Global and local Swelling - Part III: Damage and Young's Modulus

Consequences of hydroxyl generation by the silica/water reaction - Part II: Global and local Swelling - Part III: Damage and Young's Modulus PDF Author: Fett, Theo
Publisher: KIT Scientific Publishing
ISBN: 3731511592
Category : Science
Languages : en
Pages : 226

Book Description
Water diffusing into silica surfaces gives rise for several effects on diffusion behaviour and mechanical properties. In a preceding booklet, we focused on diffusion and fiber strengths and deformations which were obtained by water soaking under external loading. In the present booklet we deal with results and interpretations of strength increase in the absence of applied stresses.

Characterisation and Modelling of Continuous-Discontinuous Sheet Moulding Compound Composites for Structural Applications

Characterisation and Modelling of Continuous-Discontinuous Sheet Moulding Compound Composites for Structural Applications PDF Author: Trauth, Anna
Publisher: KIT Scientific Publishing
ISBN: 3731509504
Category : Technology & Engineering
Languages : en
Pages : 468

Book Description
The main objective of this work is to significantly deepen the understanding of the material and the structural behaviour of continuous-discontinuous SMC composites, following a holistic approach to investigate microscopic aspects, macroscopic mechanical behaviour as well as failure evolution at the coupon, structure and component level. In addition, criteria to evaluate the effect of hybridisation are introduced and modelling approaches are presented and discussed.