When we fabricate a hybrid composites (more than one reinforcement) through stir casting process. The reinforcement are in particles form. For this case how to calculate the theoretical density of the composite.
Rule of Mixtures is a method of approach to approximate estimation of composite material properties, based on an assumption that a composite property is the volume weighed average of the phases (matrix and dispersed phase) properties.
You can also determine the density of composite by knowing the volume fraction of each constituents. To determine constituents volume fraction, image analysis of micrograph is a robust non destructive technique. You can find the details of image analysis technique of a fiber composite in the link below
https://www.researchgate.net/publication/279771139_Uncorrelated_volume_element_for_stochastic_modeling_of_microstructures_based_on_local_fiber_volume_fraction_variation
Article Uncorrelated volume element for stochastic modeling of micro...
Nadhim Faleh, usage of mass fractions will not be correct approach. It should be volume fraction.
Maybe the formulas of this link can help you. https://sites.google.com/site/compositematerialsdesign/home/weight-and-volume-fractions
using formula , density equals mass divided by volume, try to find proportion of mass of each material , from property of individual material find volume of each material check total volume it should be addition of all material equal to volume of composite material , then apply basic formula
Al-6063 alloy is used as a matrix material. Copper net was prepared by using Continuous copper fibre and then reinforced in the matrix. The specimen was prepared by lost foam framed casting technique in the case of sand casting process. For this case, how to calculate the theoretical density of the composite and also by practically?
Those interested at the topic of this query may also want to check the following related RG discussions:
https://www.researchgate.net/post/How_might_I_determine_glass_fiber_content_in_composite https://www.researchgate.net/post/composites_may_consists_of_three_different_constituent_like_Epoxy_carbon_and_glass_fiberhow_i_can_calculate_volume_and_mas_fraction_from_density
https://www.researchgate.net/post/I_have_a_composite_materials_with_the_composition_of_AxByCz_How_can_I_calculate_density_of_the_composite
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