Constitutive Modelling Of Structural Adhesives Experimental And Numerical Aspects
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Constitutive Modelling Of Structural Adhesives Experimental And Numerical Aspects
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Author :
language : en
Publisher:
Release Date : 2010
Constitutive Modelling Of Structural Adhesives Experimental And Numerical Aspects written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Structural adhesives are recognized by the industry as a powerful alternative solution to traditional fastening methods such as welding or riveting. As a new technological solution, they introduce requirements in terms of the evaluation of their mechanical performances. In particular, enhanced safety guarantee requires not only to know the material performance in standard laboratory tests but to be able to predict it under real conditions, for complex shaped parts. This may be done by finite element simulation. Nevertheless, the small thickness and the specific material behaviour of the adhesive bonded joint make modelling difficult using available numerical tools. This Ph-D work focuses on the assessment of structural adhesive joints bonded with the structural adhesive SikaPower-490 using finite element analysis. Both strength and damage aspects are evaluated under quasi-static loadings. First, experimental tests required to measure the mechanical properties of structural adhesives are investigated. The former group of experiments is devoted to the assessment of the elastoplastic behaviour of the adhesive up to its maximal strength and for different loading paths. The experiments consist of butt-bonded hollow cylinders, classical and modified Thick Adherend Shear Tests, and modified Arcan specimens. The latter group of experiments composed of Double Cantilever Beam and End Notched Flexure specimens is devoted to the study of the damage and fracture behaviour of the adhesive. Second, material constitutive models for the finite element simulation of structural adhesives are investigated. Standard constitutive models such as von Mises and Exponent Drucker-Prager model are reviewed, but their lack of accuracy lead to the implementation of a pressure-dependent constitutive model inspired from Mahnken and Shlimmer. The identification of material constitutive parameters is an important step: The non-homogeneity of stresses in the adhesive layer requires the implementation of a specific inverse identification procedure. Using this method, a set of material parameters can be identified which describes nicely the non linear behaviour of the adhesive under multi-axial loadings. In order to meet requirements of the automotive industry in terms of modelling and computation time, the constitutive model developed so far with solid elements is validated using interface elements. For the study of quasi-static damage and failure in the adhesive layer, a constitutive traction-separation elasticdamage model is tested with interface elements. The advantages and drawbacks of the two elastoplastic and damage constitutive models are compared and the extension of the elastoplastic model to take damage and fracture into account is considered. Third, the constitutive models investigated so far are validated for the finite element simulation of industrial case studies representative of bonded parts in a car's body in white. A T-joint submitted to two different loading and a closed hat profile bonded to a plate and submitted to flexion loading configurations are simulated.
Dynamic Behavior Of Materials Volume 1
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Author : Bo Song
language : en
Publisher: CRC Press
Release Date : 2025-08-07
Dynamic Behavior Of Materials Volume 1 written by Bo Song and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-08-07 with Technology & Engineering categories.
Dynamic Behavior of Materials, Volume 1: Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics, the first volume of eight from the Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Experimental Mechanics, including papers on: General Dynamic Material Properties Novel Dynamic Testing Techniques Dynamic Fracture and Failure Novel Testing Techniques Dynamic Behavior of Geo-materials Dynamic Behavior of Biological and Biomimetic Materials Dynamic Behavior of Composites and Multifunctional Materials Dynamic Behavior of Low-Impedance materials Multi-scale Modeling of Dynamic Behavior of Materials Quantitative Visualization of Dynamic Behavior of Materials Shock/Blast Loading of Materials.
Technological Aspects Of Manufacturing And Numerical Modelling Of Clinch Adhesive Joints
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Author : Tomasz Sadowski
language : en
Publisher: Springer
Release Date : 2015-05-23
Technological Aspects Of Manufacturing And Numerical Modelling Of Clinch Adhesive Joints written by Tomasz Sadowski and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-05-23 with Technology & Engineering categories.
This short book describes the basic technological aspects involved in the creation of purely clinch and clinch-adhesive joints made of different types of adherent materials and employing different joining technologies. Basic parameters that need to be taken into account in the design process are also presented, while a comparison of experimental testing of the hybrid joint with simple clinching for a combination of different joining materials underlines the advantages of opting for hybrid joints. The book’s conclusions will facilitate the practical application of this new fastening technology.
Constitutive Modelling And Failure Prediction For Silicone Adhesives In Fa Ade Design
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Author : Michael Drass
language : en
Publisher: Springer Nature
Release Date : 2020-02-21
Constitutive Modelling And Failure Prediction For Silicone Adhesives In Fa Ade Design written by Michael Drass and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-21 with Technology & Engineering categories.
This book provides readers with an elementary understanding of the material behavior of structural silicones in façades. Based on extensive experimental investigations on a transparent structural silicone adhesive (TSSA), the material behavior, failure, and microscopic effects such as stress whitening, cavitation failure, and the Mullins effect are analyzed. In turn, novel hyperelastic material models are developed to account for nonlinear material behavior under arbitrary deformations. The development of a volumetric hyperelastic model makes it possible for the first time to approximate the structural behavior of TSSA under constrained tensile load and cavitation. The material models discussed here were implemented in a finite element code for validation, and their quality was confirmed by three-dimensional numerical simulations, in which an additional stretch-based failure criterion was evaluated for failure prediction. The numerical studies are in good agreement with the experimental results.
Iccs21
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Author : Antonio J.M. Ferreira
language : en
Publisher: Società Editrice Esculapio
Release Date : 2018-07-23
Iccs21 written by Antonio J.M. Ferreira and has been published by Società Editrice Esculapio this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-23 with Technology & Engineering categories.
It is well-known that the topic of composite mate- rials affects many engineering fields, such as civil, mechanical, aerospace, automotive and chemical. In the last decades, in fact, a huge number of scientific papers concerning these peculiar constituents has been published. Analogously, the industrial progress has been extremely noticeable. The study of composite materials, in general, is a challenging activity since the advancements both in the academia and in the industry provide continually new sparks to develop innovative ideas and applications. The communication, the sharing and the exchange of views can surely help the works of many researchers. This aspect represents the main purpose of this Conference, which aims to collect high-level contributions on the development and the application of composite materials. The establishment of this 21st edition of International Conference on Composite Structures has appeared appropriate to continue what has been begun during the previous editions. ICCS wants to be an occasion for many researchers from each part of the globe to meet and discuss about the recent advancements regarding the use of composite structures, sandwich panels, nanotechnology, bio-composites, delamination and fracture, experimental methods, manufacturing and other countless topics that have filled many sessions during this conference. As a proof of this event, which has taken place in Bologna (Italy), selected plenary and key-note lectures have been collected in the present book.
Funicular Structures
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Author : Damon Bolhassani
language : en
Publisher: Taylor & Francis
Release Date : 2025-04-16
Funicular Structures written by Damon Bolhassani and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-04-16 with Architecture categories.
Funicular structures are structural skeletons designed using methodologies that analyze the flow and direction of forces, which can be categorized as compression, tension, or a combination of both. They are not only elegant, resembling naturally occurring forms, but also highly efficient and can be built with minimal use of relatively low-strength materials, thus minimizing their negative environmental impact. This book presents an in-depth overview of the theoretical foundations and practical methods of designing funicular structures for maximum efficiency. Beginning with a foundation and introduction to funicular structures for those new to the subject, the book then provides in-depth coverage of cables, arches, shells and vaults, domes, and spatial structures. Chapters explain the theory behind funicular structures in 2D, spatial funicular structures in 3D and examine their structural behavior. Recent and historically famous structures from around the globe are analyzed, and their potential design methods revealed through step-by-step, visual explanations. Structural analysis of funicular structures in different forms are also presented to demonstrate pitfalls and common errors. Tracing the various methods of designing funicular structures, including the latest computational tools, this book provides a solid foundation for students of architecture, structural design, civil engineering, landscape design, and environmental design, to embark on their own funicular design projects.
Challenging Glass 3
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Author : Freek Bos
language : en
Publisher: IOS Press
Release Date : 2012
Challenging Glass 3 written by Freek Bos and has been published by IOS Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Architecture categories.
There are two things everybody knows about glass: it is transparent, and it breaks! These are also the properties that constitute the challenge of glass as an architectural and structural material. This book presents papers from the third Challenging Glass Conference (CGC3), held at the Technical University (TU) Delft, the Netherlands, in June 2012. The conference brings together glass engineering, research and design specialists. Papers are grouped under seven topic headings: project and case studies; joints, fixings and adhesives; strength, stability and safety (a category which includes a quarter of all the papers presented at the conference); laminates and composite design; curved and bended glass; architectural design and lighting and finally, glass in facades. Glass remains one of the most exciting materials available to designers and architects today. This book will be of interest to all those involved in working with glass in an architectural and structural context.
Cellulose Composites
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Author : Pawan Kumar Rakesh
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2023-02-20
Cellulose Composites written by Pawan Kumar Rakesh and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-02-20 with Science categories.
The applications of biocomposite materials are increasing in aerospace, automobile, and household items due to their biodegradable, renewable, non-corrosion, and high strength to weight ratio properties. The processing and characterization of biofiberreinforced biocomposite materials are vital for their strength and performance. This book discusses the properties, chemical treatment, and compatibility of biofi bers with materials.
Constitutive Models For Rubber Xii
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Author : Claudia Marano
language : en
Publisher: CRC Press
Release Date : 2022-12-22
Constitutive Models For Rubber Xii written by Claudia Marano and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-22 with Technology & Engineering categories.
Constitutive Models for Rubber XII is a comprehensive compilation of the oral and poster contributions to the XII European Conference on Constitutive Models for Rubbers (Milan, Italy, 7-9 September 2022). As the first after the COVID Pandemic, the XII edition again brought together researchers from the industry and the academia working in the field of elastomer technology and science to discuss the most recent advancement in the following topics: • Constitutive models • Micro-structural investigations • Experimental methods and characterization • Numerical methods • Fatigue and fracture • Aging • Industrial applications • Smart elastomer materials: applications and modelling Including more than 80 contributions from authors from around the world, this book aims at professionals and academics interested in elastomer technology and science.
Applied Mechanics Reviews
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Author :
language : en
Publisher:
Release Date : 1948
Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1948 with Mechanics, Applied categories.