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← TechnologyWhich outcome occurs when shear stress exceeds static friction in layered wooden I-beams?
A)Accelerated creep deformation increases
B)Delamination between layers initiates✓
C)Beam tensile strength improvement
D)Increased composite action stiffness
💡 Explanation
Delamination begins because the shear stress exceeds the static friction limit of the adhesive bonds between wood layers, enabling crack propagation, therefore, premature structural failure results rather than improved performance under increased load.
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