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The FVDAM model enables analysis of periodic materials with user-defined microstructures that are continuous along the out-of-plane direction (see the figure). Periodic microstructures are defined by a single repeating unit cell (RUC) which is the basic building block of the entire array. Average stress-strain response under different types of loading can be easily generated, as well as internal stress and strain distributions at user-specified stress or strain levels. |
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MATOOL (Micromechanics Analysis Tool) is an application which acts as pre- and post-processor for the FVDAM model. It enables input data construction, execution and the display of results in an user-friendly manner. MATOOL works in four easy steps through the tabs described below. · Materials: specification of materials comprising the RUC and their mechanical properties · Geometry: specification of the RUC geometry and discretization which is displayed at all times for the user’s benefit after it is defined · Analysis: specification of loading · Results: display of average stress-strain curve and internal fields for the specified loading
The general solution methodology of the FVDAM model is detailed in the manuscript “Finite-volume direct averaging micromechanics of heterogeneous materials with elastic–plastic phases”. Understanding the solution methodology will be helpful in making efficient use of the MATOOL application
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Top — Fiber-reinforced composite with radial fiber cracks and fiber-matrix interfacial debonding; Bottom — macroscopic response under transverse loading with fiber crack and/or interfacial debonding; transverse normal stress for debonded/uncracked composite |
