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Author: George C. Sih
Publisher: Springer Science & Business Media
ISBN: 9400983409
Category : Science
Languages : en
Pages : 617
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Book Description
Composites offer great promise as light weight and strong materials for high performance structures. One of the major advantages of these materials as compared with metals is the basic way in which heterogeneity resist crack extension. In a fiber/matrix composite system, the fibers tend to cause cracks to form at closer spacing and delay the formation of a large crack. The enhancement of local failure such as fiber breaking, matrix cracking and interface debonding further reduces the energy level which might have otherwise reached the point of catastrophic failure. Even though substantial tests have been made on composite materials, little has been gained in the understanding and development of a predic tive procedure for composite failure. There are fundamental difficulties associated with incorporating the nonhomogeneous and anisotropic prop erties of the composite into the continuum mechanics analysis. Additional uncertainties arise from voids and defects that are introduced in the composite during manufacturing. Even a small quantity of mechanical imperfections can cause a marked influence on the composite strength. Moreover, the interface properties between the fibers and matrix or bonded laminae can also affect the load transmission characteristics significantly. It would be impossible to establish predictive procedures for composite failure unless realistic guidelines could be developed to control the manufacturing quality of composite systems.
Author: George C. Sih
Publisher: Springer Science & Business Media
ISBN: 9400983409
Category : Science
Languages : en
Pages : 617
Get Book
Book Description
Composites offer great promise as light weight and strong materials for high performance structures. One of the major advantages of these materials as compared with metals is the basic way in which heterogeneity resist crack extension. In a fiber/matrix composite system, the fibers tend to cause cracks to form at closer spacing and delay the formation of a large crack. The enhancement of local failure such as fiber breaking, matrix cracking and interface debonding further reduces the energy level which might have otherwise reached the point of catastrophic failure. Even though substantial tests have been made on composite materials, little has been gained in the understanding and development of a predic tive procedure for composite failure. There are fundamental difficulties associated with incorporating the nonhomogeneous and anisotropic prop erties of the composite into the continuum mechanics analysis. Additional uncertainties arise from voids and defects that are introduced in the composite during manufacturing. Even a small quantity of mechanical imperfections can cause a marked influence on the composite strength. Moreover, the interface properties between the fibers and matrix or bonded laminae can also affect the load transmission characteristics significantly. It would be impossible to establish predictive procedures for composite failure unless realistic guidelines could be developed to control the manufacturing quality of composite systems.
Author: G. P. Sendeckyj
Publisher: ASTM International
ISBN: 9780803103665
Category : Technology & Engineering
Languages : en
Pages : 248
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Book Description
Author: Leslie Banks-Sills
Publisher: Springer
ISBN: 3319603272
Category : Science
Languages : en
Pages : 120
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Book Description
Part I of this SpringerBrief presents the problem of a crack between two dissimilar isotropic materials and describes the mathematical background. A fracture criterion is discussed and Methods for calculating fracture parameters such as stress intensity factors using the finite element method and three post-processors are considered. Actual test data and both deterministic and statistical failure curves are presented.In Part II of the book, similar descriptions are given for delaminations in composite laminates. The mathematical treatment of this type of damage including the first term of the asymptotic expansion of the stress and displacement fields is considered. Numerical post-processors for determining stress intensity factors for these cases are reviewed. Two examples of specific laminates are presented: one with a failure curve and the other with a failure surface. Finally, beam specimens used for testing such failures are discussed.
Author: H. Thomas Hahn
Publisher: ASTM International
ISBN: 0803104707
Category : Aluminum
Languages : en
Pages : 400
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Book Description
Author: Mohd Nasir Tamin
Publisher: Springer Science & Business Media
ISBN: 3642236596
Category : Science
Languages : en
Pages : 244
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Book Description
This monograph presents recent research findings on fracture properties and behavior of the composites, and their damage and cracking process under both quasi-static and impact loading conditions. Theoretical treatment, experimental investigation and numerical simulation aspects of the mechanics of composites, including sandwich structures are included.
Author: Rikard Benton Heslehurst
Publisher: CRC Press
ISBN: 1466580488
Category : Technology & Engineering
Languages : en
Pages : 206
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Book Description
The advantages of composite materials include a high specific strength and stiffness, formability, and a comparative resistance to fatigue cracking and corrosion. However, not forsaking these advantages, composite materials are prone to a wide range of defects and damage that can significantly reduce the residual strength and stiffness of a structu
Author: T. Kevin O'Brien
Publisher: ASTM International
ISBN: 0803114192
Category : Composite materials
Languages : en
Pages : 831
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Book Description
Author: Ronald B. Bucinell
Publisher: ASTM International
ISBN: 0803126093
Category : Composite materials
Languages : en
Pages : 315
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Book Description
Author: M. H. Aliabadi
Publisher: WIT Press
ISBN: 1853126691
Category : Technology & Engineering
Languages : en
Pages : 305
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Book Description
Covering various aspects of dynamic fractures this book contains state-of-the-art contributions from leading scientists in the field of crack dynamics.
Author: Joseph E. Grady
Publisher:
ISBN:
Category : Composite materials
Languages : en
Pages : 44
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Book Description