Multiscale Modeling of Damage in Composite Materials

2014 ◽  
pp. 179-209 ◽  
Author(s):  
Ramesh Talreja
Keyword(s):  
Composite Materials ◽  
Multiscale Modeling

scholarly journals DECM: A Discrete Element for Multiscale Modeling of Composite Materials Using the Cell Method

2020 ◽  
Author(s):  
Elena Ferretti
Keyword(s):  
Composite Materials ◽  
Multiscale Modeling ◽  
Static Solution ◽  
Discrete Element ◽  
Shear Loading ◽  
Relaxation Techniques ◽  
Discrete Elements ◽  
Cell Method ◽  
Finite Displacements ◽  
Complete Detachment

This paper presents a new numerical method for multiscale modeling of composite materials. The new numerical model, called DECM, consists in a DEM (Discrete Element Method) approach of the Cell Method (CM) and combines the main features of both the DEM and the CM. In particular, it offers the same degree of detail as the CM, on the microscale, and manages the discrete elements individually such as the DEM—allowing finite displacements and rotations—on the macroscale. Moreover, the DECM is able to activate crack propagation until complete detachment and automatically recognizes new contacts. Unlike other DEM approaches for modeling failure mechanisms in continuous media, the DECM does not require prior knowledge of the failure position. Furthermore, the DECM solves the problems in the space domain directly. Therefore, it does not require any dynamic relaxation techniques to obtain the static solution. For the sake of example, the paper shows the results offered by the DECM for axial and shear loading of a composite two-dimensional domain with periodic round inclusions. The paper also offers some insights into how the inclusions modify the stress field in composite continua.

Computer-aided multiscale modeling tools for composite materials and structures

1995 ◽  
Vol 6 (3) ◽  
pp. 213-223 ◽  
Author(s):  
V. Belsky ◽  
M.W. Beall ◽  
J. Fish ◽  
M.S. Shephard ◽  
S. Gomaa
Keyword(s):  
Composite Materials ◽  
Multiscale Modeling ◽  
Modeling Tools ◽  
Computer Aided
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