Seminar
■ 제 목 : Multifunctional Architected Materials and Composites based on Minimal Surfaces
■ 연 사 : Rashid K. Abu Al-Rub (Khalifa University of Science and Technology)
■ 일 시 : 2019년 09월 24일 (화요일) 11:00~
■ 장 소 : 응용공학동(W1-1) 2429호 세미나실
■ Host : 한승민 교수
■ Abstract :
Design of new materials that are durable, lightweight, and
environmentally sustainable are commonly inspired by natural materials and composites.
However, imagine if we can design materials in a similar way that structural
engineers design strong and sustainable architected structures. In fact, we are
no longer limited to the natural material patterns; we can design our own
complex architected materials that may perform even better than the ones that
already exist in nature. Due to the recent advances in additive manufacturing
or 3D printing, fabrication of such complex architected materials is becoming
possible at different length scales. The objective of this talk to present a
new and novel types of architected materials where their mechanical and
physical properties are controlled by their internal topology or architecture and
not only by their composition. The architecture of these materials and
composites are based on the mathematical triply periodic minimal surfaces
(TPMS) that allow us to design new types of multifunctional materials and
composites with superior mechanical and physical properties. Metallic and
polymeric based architected TPMS materials and composites are fabricated using
macro and micro 3D printing technologies depending on the length scale of
interest and desirable properties. Furthermore, the fabrication of
graphene-based TPMS lattices and their mechanical and physical properties are
investigated. Analytical and computational models are used to develop insights
about the obtained properties and guide their further developments. Potential
applications of these material and composites are demonstrated in automotive, aerospace
and defense (lightweight and damage-tolerant materials), the energy (energy
storage, heat transfer), semiconductor (heat dissipation), and oil and gas (catalytic
supports) sectors.