alleryStart learning →In CLT, the D matrix relates:
AStrains to displacements
BBending and twisting moment resultants {M_x, M_y, M_xy} to mid-plane curvatures {κ°_x, κ°_y, κ°_xy}
CIn-plane forces to curvatures
DShear stress to strain
Answer & Solution
Correct answer: B. Bending and twisting moment resultants {M_x, M_y, M_xy} to mid-plane curvatures {κ°_x, κ°_y, κ°_xy}
D is the bending stiffness matrix.
Moment resultants per unit width (lb·in/in or N·m/m) couple to plate curvatures κ.
D plays the role of EI for a 1D beam, generalized to a 2D plate.
Keep practising Classicallaminationtheory
Browse all Classicallaminationtheory questions for BHEL Engineer Trainee, or explore more Mechanical Engineering topics.