Constructional Viscoelastic Composite Materials

Constructional Viscoelastic Composite Materials PDF Author: Pouria Hajikarimi
Publisher: Springer Nature
ISBN: 9819917867
Category : Science
Languages : en
Pages : 170

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Book Description
Viscoelasticity is a complicated theorem that is generally used in several aspects of material characterization and modeling of polymers, resins, fiber-reinforced composites, bituminous composites, etc. On the other hand, the heterogeneous nature of composites like asphalt concrete and fiber-reinforced polymers has motivated lots of researchers to investigate the mechanical and rheological properties of these materials. This book mainly consists of the theory and application of viscoelastic materials used for construction. It starts with a comprehensible presentation of the theory of linear and nonlinear viscoelasticity. Wherein, the application of viscoelastic equations and principles on constructional viscoelastic composite materials considering time, temperature, loading rate dependency, and heterogeneity of composite substances is highlighted. The principles and equations of the viscoelasticity theorem are presented in several books, but here it is tried to present them more understandable and straightforwardly. This helps in solving real problems of heterogeneous composite materials, especially those which are used in construction. Moreover, the fundamental experiments for characterizing the elastic and viscoelastic properties of fibrous and bituminous composites are introduced and summarized. Then after, some analytical and empirical formulations for deriving the material properties of composites from the properties of the basic constituents are presented. These are followed by numerical simulation techniques using the finite element method to simulate composite materials.

Constructional Viscoelastic Composite Materials

Constructional Viscoelastic Composite Materials PDF Author: Pouria Hajikarimi
Publisher: Springer Nature
ISBN: 9819917867
Category : Science
Languages : en
Pages : 170

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Book Description
Viscoelasticity is a complicated theorem that is generally used in several aspects of material characterization and modeling of polymers, resins, fiber-reinforced composites, bituminous composites, etc. On the other hand, the heterogeneous nature of composites like asphalt concrete and fiber-reinforced polymers has motivated lots of researchers to investigate the mechanical and rheological properties of these materials. This book mainly consists of the theory and application of viscoelastic materials used for construction. It starts with a comprehensible presentation of the theory of linear and nonlinear viscoelasticity. Wherein, the application of viscoelastic equations and principles on constructional viscoelastic composite materials considering time, temperature, loading rate dependency, and heterogeneity of composite substances is highlighted. The principles and equations of the viscoelasticity theorem are presented in several books, but here it is tried to present them more understandable and straightforwardly. This helps in solving real problems of heterogeneous composite materials, especially those which are used in construction. Moreover, the fundamental experiments for characterizing the elastic and viscoelastic properties of fibrous and bituminous composites are introduced and summarized. Then after, some analytical and empirical formulations for deriving the material properties of composites from the properties of the basic constituents are presented. These are followed by numerical simulation techniques using the finite element method to simulate composite materials.

Applications of Viscoelasticity

Applications of Viscoelasticity PDF Author: Pouria Hajikarimi
Publisher: Elsevier
ISBN: 012821211X
Category : Technology & Engineering
Languages : en
Pages : 245

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Book Description
Applications of Viscoelasticity: Bituminous Materials Characterization and Modeling starts with an introduction to the theory of viscoelasticity, emphasizing its importance to various applications in material characterization and modeling. It next looks at constitutive viscoelastic functions, outlines basic equations for different loading conditions, and introduces the Boltzmann superposition principle, relaxation modulus, and creep compliance. Mechanical models, including integer-order and fractional-order are studied next, featuring real experimentation data alongside the benefits and drawbacks of using each model in various real-world scenarios. The book then covers the correspondence principle, followed by time–temperature superposition, featuring a simple procedure to construct a real master curve and challenges that might be encountered. The concluding chapters cover the Hopkins and Hamming, Park and Kim, and General Power law methods for interconversion of constitutive viscoelastic functions, applications of viscoelasticity for experimental tests, and incremental form of viscoelastic relations for numerical modeling. The book also includes supplementary codes that users can duplicate and use in their own work. Takes an applied approach to material viscoelasticity, explaining complicated viscoelastic equations and principles Presents examples of those equations and principles being applied to common problems in realworld settings Covers constitutive viscoelastic functions, including relaxation modulus and creep compliance Outlines the construction of a master curve of viscoelastic material considering time–temperature superposition Couples the correspondence principle with common viscoelastic experiments, such as threepoint bending beam, axial and torsional bar, and dynamic shear rheometer Provides supplementary codes

Stability Loss and Buckling Delamination

Stability Loss and Buckling Delamination PDF Author: Surkay Akbarov
Publisher: Springer Science & Business Media
ISBN: 3642302904
Category : Science
Languages : en
Pages : 456

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Book Description
This book investigates stability loss problems of the viscoelastic composite materials and structural members within the framework of the Three-Dimensional Linearized Theory of Stability (TDLTS). The stability loss problems are considered the development of the initial infinitesimal imperfection in the structure of the material or of the structural members. This development is studied within the framework of the Three-Dimensional Geometrical Non-Linear Theory of the Deformable Solid Body Mechanics. The solution to the corresponding boundary-value problems is presented in the series form in the small parameter which characterizes the degree of the initial imperfection. In this way, the nonlinear problems for the domains bounded by noncanonical surfaces are reduced for the same nonlinear problem for the corresponding domains bounded by canonical surfaces and the series subsequent linearized problems. It is proven that the equations and relations of these linearized problems coincide with the corresponding ones of the well-known TDLTS. Under concrete investigations as stability loss criterion the case is taken for the initial infinitesimal imperfection that starts to increase indefinitely. Moreover, it is proven that the critical parameters can be determined by the use of only the zeroth and first approximations.

Stability Loss and Buckling Delamination

Stability Loss and Buckling Delamination PDF Author: Surkay D. Akbarov
Publisher: Springer
ISBN: 9783642302916
Category : Technology & Engineering
Languages : en
Pages : 450

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Book Description
This book investigates stability loss problems of the viscoelastic composite materials and structural members within the framework of the Three-Dimensional Linearized Theory of Stability (TDLTS). The stability loss problems are considered the development of the initial infinitesimal imperfection in the structure of the material or of the structural members. This development is studied within the framework of the Three-Dimensional Geometrical Non-Linear Theory of the Deformable Solid Body Mechanics. The solution to the corresponding boundary-value problems is presented in the series form in the small parameter which characterizes the degree of the initial imperfection. In this way, the nonlinear problems for the domains bounded by noncanonical surfaces are reduced for the same nonlinear problem for the corresponding domains bounded by canonical surfaces and the series subsequent linearized problems. It is proven that the equations and relations of these linearized problems coincide with the corresponding ones of the well-known TDLTS. Under concrete investigations as stability loss criterion the case is taken for the initial infinitesimal imperfection that starts to increase indefinitely. Moreover, it is proven that the critical parameters can be determined by the use of only the zeroth and first approximations.

Lamb Waves for Structural Health Monitoring in Viscoelastic Composite Materials

Lamb Waves for Structural Health Monitoring in Viscoelastic Composite Materials PDF Author: Mircea Calomfirescu
Publisher: Logos Verlag Berlin GmbH
ISBN: 3832519467
Category :
Languages : en
Pages : 119

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Book Description
Strucural Health Monitoring (SHM) is a novel philosophy for an autonomous, built-in nondestructive evalution of structural "health" on demand to reduce life-cycle costs, increase safety and reduce structural weight. This dissertation investigates ultrasonic guided waves, particulary Lamb waves, and their propagation properties as a method to perform Health Monitoring of viscoelastic composite structures.

The Accelerated Characterization of Viscoelastic Composite Materials

The Accelerated Characterization of Viscoelastic Composite Materials PDF Author: William Irving Griffith
Publisher:
ISBN:
Category :
Languages : en
Pages : 160

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Book Description


The Accelerated Characterization of Viscoelastic Composite Materials

The Accelerated Characterization of Viscoelastic Composite Materials PDF Author: William I. Griffith
Publisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 172

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Book Description


Multicontinuum Failure Analysis of Viscoelastic Composite Structural Materials

Multicontinuum Failure Analysis of Viscoelastic Composite Structural Materials PDF Author: Randal Wilson Six
Publisher:
ISBN:
Category : Structural failures
Languages : en
Pages : 204

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Book Description


Polymers and Polymer Composites in Construction

Polymers and Polymer Composites in Construction PDF Author: Leonard Hollaway
Publisher: Thomas Telford
ISBN: 9780727715210
Category : Technology & Engineering
Languages : en
Pages : 304

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Book Description
Very Good,No Highlights or Markup,all pages are intact.

Viscoelastic Structures

Viscoelastic Structures PDF Author: Aleksey D. Drozdov
Publisher: Morgan Kaufmann
ISBN:
Category : Histology
Languages : en
Pages : 626

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Book Description
Viscoelastic Structures covers the four basic problems in the mechanics of viscoelastic solids and structural members: construction of constitutive models for the description of thermoviscoelastic behavior of polymers; mathematical modeling of manufacturing advanced composite materials; optimal-design of structural members and technological processes of their fabrication; and stability analysis for thin-walled structural members driven by time-varying loads. This book familiarizes the reader with state-of-the-art mathematical models for advanced materials and processes, and demonstrates their applications in modeling and simulating specific manufacturing processes. Viscoelastic Structures also demonstrates the effects of material, geometrical, and technological parameters on the characteristic features of viscoelastic structures. 1Presents state-of-the-art mathematical models and methods which serve for the analysis of advanced technological processes 1Includes numerous examples to demonstrate theory which have not been included in previous literature 1Employs one consistent, user-friendly method to study a number of technological processes 1Features unique approach to aging materials 1Appendices cover background material on tensor calculus, kinematics with finite strains, stochastic differential equations, and evolutionary equations with operator coefficients.