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About

Navvab Shafiei is a leading researcher in the mechanics of micro- and nano-scale structures, with a focus on functionally graded materials (FGMs) and rotating beams. His work bridges classical continuum mechanics with advanced size-dependent theories, such as the modified couple stress theory and Eringen’s nonlocal elasticity, to predict the vibration behavior of tapered, rotating beams at micro and nanoscales. Among his most influential contributions is the first-ever investigation of size-dependent vibration in rotating functionally graded Timoshenko nanobeams using nonlocal elasticity, a paper that has garnered 41 citations. His 2016 study on rotating non-uniform FG microbeams, published in *Composite Structures*, has been cited 88 times, while his comparative analysis of Timoshenko and Euler–Bernoulli models for rotating tapered axially FG microbeams has earned 63 citations. Shafiei’s work is notable for its rigorous application of numerical methods like the generalized differential quadrature element method (GDQEM) to solve complex structural dynamics problems. His research has significantly advanced the understanding of how size effects influence the mechanical behavior of rotating micro- and nano-beams, with direct implications for the design of high-performance MEMS/NEMS devices and rotating machinery components.