Rule-of-mixture provides _________ bounds for mechanical properties of particulate composites.Group of answer choicesNoneBothUpperLower
Question
Rule-of-mixture provides _________ bounds for mechanical properties of particulate composites.
Group of answer choices
- None
- Both
- Upper
- Lower
Solution
The Rule of Mixtures provides both upper and lower bounds for the mechanical properties of particulate composites.
Here's a brief explanation:
-
Upper Bound: This assumption considers that the load is distributed among the components in an ideal manner, which typically corresponds to the case where the reinforcement properties are promoted to their fullest potential (e.g., when the fibers or particles are completely aligned and perfectly bonded). This is generally represented for a composite material by taking the volume fraction of each component multiplied by its mechanical property, resulting in a maximum possible strength or stiffness.
-
Lower Bound: This typically assumes that the matrix completely dominates the behavior of the composite or that load transfer occurs only through the weakest link. This provides a measure of the minimum performance that could be expected from the composite material.
Therefore, the correct answer to fill in the blank is Both.
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