This paper presents a class of 3D single-scale isotropic materials with tunable stiffness and buckling strength obtained via topology optimization subsequent shape optimization. Compared to stiffness-optimal closed-cell plate material, the material reduces Young's modulus range from 79% 58%, but improves uniaxial 180% 767%. Based on small deformation theory, is evaluated using homogenization me...

The purpose of this research is to drive the evaluation formula coupled local buckling strength H-shaped members under pure compression. To clarify interaction among plate elements, multiple studies have been conducted. As a result, formulae for maximum are established and expressed by empirical equations or regression analysis . However, most were not able explain behavior because complicated....

The presence of the delamination causes reductions in the bending stiffness which in turn leads to the undesirable loss in the compressive buckling and post-buckling strength. Thus, it is of chief importance to investigate the compressive behavior of composites with delaminations. Anastasiadis et al. analyzed the buckling and postbuckling behavior of delaminated composite laminates with a throu...

Several deficient steel structural members require to be strengthened all over the world. In this article, horizontal defects were generated at three locations (top, middle, and bottom) on the middle element and the middle of the side element. Consequently, the effects of the location of such defects on axial behavior of Carbon Fiber Reinforced Polymer (CFRP) strengthened steel Square Hollow Se...

Structural fuses, easily replaceable sacrificial elements to dissipate seismic energy while preventing damage to the gravity loadresisting structural system, are proposed as part of a multicolumn accelerated bridge construction (ABC) pier concept. Different types of structural fuses are investigated to compare the effect of each on ABC bridge bents. The piers of a three span-continuous bridge p...