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Here i have attached picture of fiber structure and another is matrix structure. Is simulation possible for a fibre reinforced composite after assembling it? if yes, then how??
Define the material properties as Steven says using the values of Denis pdf.
Next, define a material orientation for your piece. Remember that material orientation is applied to features, not to the material itself. Check the preview button and use the several tools that the dialog box has in order to set the desire orientation.