labile
发表于 2025-3-28 18:12:14
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Directed
发表于 2025-3-28 22:01:42
ation is given as a general quadratic function. The derivations of a closed-form stiffness matrix and a load vector are based on a simplified computational model where the cracks are represented by means of internal hinges endowed with rotational springs that take into account the cross-section’s re