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← ScienceWhich consequence results when carbon fiber's epoxy matrix degrades?
A)Inter-laminar shear strength decreases greatly✓
B)Resin becomes impermeable to solvents
C)Fiber tensile strength improves markedly
D)Electrical resistance through composite decreases
💡 Explanation
Weakened epoxy causes delamination via reduced load transfer; the mechanism is stress concentration. Because fiber reinforcement depends on matrix integrity, inter-laminar shear weakens drastically, therefore A is correct, rather than alternatives which rely on intact resin structures.
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