NDLI: Metal matrix composites microfracture: computational simulation

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Metal matrix composites microfracture: computational simulation

Content Provider	NASA Technical Reports Server (NTRS)
Author	Mital, Subodh K. Caruso, John J. Chamis, Christos C.
Copyright Year	1990
Description	Fiber/matrix fracture and fiber-matrix interface debonding in a metal matrix composite (MMC) are computationally simulated. These simulations are part of a research activity to develop computational methods for microfracture, microfracture propagation and fracture toughness of the metal matrix composites. The three-dimensional finite element model used in the simulation consists of a group of nine unidirectional fibers in three by three unit cell array of SiC/Ti15 metal matrix composite with a fiber volume ration of 0.35. This computational procedure is used to predict the fracture process and establish the hierarchy of fracture modes based on strain energy release rate. It is also used to predict stress redistribution to surrounding matrix-fibers due to initial and progressive fracture of fiber/matrix and due to debonding of fiber-matrix interface. Microfracture results for various loading cases such as longitudinal, transverse, shear and bending are presented and discussed. Step-by-step procedures are outlined to evaluate composite microfracture for a given composite system.
File Size	763302
Page Count	16
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19900015067
Archival Resource Key	ark:/13960/t9964fp1g
Language	English
Publisher Date	1990-01-01
Access Restriction	Open
Subject Keyword	Composite Materials Microcracks Strain Energy Release Rate Computerized Simulation Finite Element Method Fractures Materials Hierarchies Stress Distribution Failure Analysis Reinforcing Fibers Fiber-matrix Interfaces Bending Metal Matrix Composites Mathematical Models Fracture Strength Three Dimensional Models Matrix Materials Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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