alleryStart learning →For a SYMMETRIC laminate, the 6×6 ABD system decouples into:
ATwo 3×3 systems: in-plane {N} = A·{ε°} and bending {M} = D·{κ}
BThree 2×2 systems
CA single 6×6 system as before
DIt does not decouple
Answer & Solution
Correct answer: A. Two 3×3 systems: in-plane {N} = A·{ε°} and bending {M} = D·{κ}
With B = 0, the upper-right and lower-left coupling blocks vanish.
The full 6×6 collapses into independent 3×3 systems: forces ↔ in-plane strains via A, and moments ↔ curvatures via D. Massive analytical simplification.
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