1.

Record Nr.

UNINA9910299902403321

Autore

Banks-Sills Leslie

Titolo

Interface Fracture and Delaminations in Composite Materials / / by Leslie Banks-Sills

Pubbl/distr/stampa

Cham : , : Springer International Publishing : , : Imprint : Springer, , 2018

ISBN

3-319-60327-2

Edizione

[1st ed. 2018.]

Descrizione fisica

1 online resource (120 pages) : illustrations (some color)

Collana

SpringerBriefs in Structural Mechanics , , 2520-8020

Disciplina

620.1181

Soggetti

Mechanics

Mechanics, Applied

Ceramics

Glass

Composite materials

Buildings - Repair and reconstruction

Buildings—Repair and reconstruction

Solid Mechanics

Ceramics, Glass, Composites, Natural Materials

Building Repair and Maintenance

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Nota di bibliografia

Includes bibliographical references at the end of each chapters and index.

Nota di contenuto

1 Introduction -- References -- Part I Interface Fracture -- 2 Fundamentals of interface fracture mechanics -- 2.1 Stress and displacement field in the neighborhood of an interface crack tip -- 2.2 Interface energy release rate -- 2.3 Fracture criterion -- References -- 3 Calculation of stress intensity factors — an interface crack -- 3.1 Finite element method -- 3.2 Displacement extrapolation method -- 3.3 M-integral -- 3.4 Virtual crack closure technique -- References -- 4 Testing—interface crack between two isotropic materials -- References -- Part II Delaminations in Composites -- 5 Mathematical treatment of delaminations -- 5.1 The 0o/90o interface -- 5.2 The +45°/ - 45° interface -- 5.3 The +30°/ - 60° and -30°/ + 60° interfaces -- 5.4 An interface between two woven plies -- 5.5



Afterword -- References -- 6 Methods of calculating stress intensity factors— Delaminations -- 6.1 Displacement extrapolation -- 6.2 M-integral -- 6.3 Virtual crack closure technique -- References -- 7 Testing-delamination between two dissimilar plies -- 7.1 Failure of a delamination in a cross-ply -- 7.2 Beam type specimens -- References -- Appendix A. Stress and displacement functions for the flrst term of the asymptotic expan on of an interface crack between two linear elastic, homogeneous and isotropic materials -- Appendix B. Matricesfor different anisotropic material pairs -- B.1 The 0o/90o pair -- B.2 The +45°/ - 45° pair -- B.3 The +30°/ - 60° pair and the -30°/ + 60° pair -- B.4 Multi-directional woven material -- References -- Appendix C. Stress and displacement fiinctions for the first term of the asymptotic expansion of an interface crack between two amsotropic materials—the 0o /90o pair -- References -- Index. .

Sommario/riassunto

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. iv>.