Abstract Cellular structures are a favorite selection for the design of lightweight components and energy absorption applications due to several advantages such as their customizable stiffness strength. In this investigation, functionally graded (FG) triply periodic minimal surfaces, Schoen-IWP (SIWP), Schwarz primitive (SPrim) cellular were fabricated by masked stereolithography (MSLA) techniq...

A matrix D is diagonal if all its off-diagonal entries are zero. If D is diagonal, then its eigenvalues are the diagonal entries, and the characteristic polynomial of D is fD(x) = ∏i=1(x−dii), where dii is the (i, i) diagonal entry of D. A matrix A is diagonalisable if there is an invertible matrix Q such that QAQ−1 is diagonal. Note that A and QAQ−1 always have the same eigenvalues and the sam...

We shall show that any two quadrangulations on the sphere with n vertices can be transformed into each other by at most 6n− 32 diagonal slides and rotations, up to homeomorphism, if n ≥ 9.

Abstract Shear dampers are known as famous seismic passive energy devices due to their suitable performance against loading improve the behavior of Concentrically Braced Frames (CBFs). The CBF system suffers from low ductility its compression member's susceptibility buckling. By adding shear directly diagonal element members CBF, prevent bucking and system. Although pertain high dissipation cap...