報告題目：Mechanics and Design of Functional Composite Materials

報告時間：2019年2月23日（周六）上午10:00

報告人：  Fumio Narita教授 (日本東北大學)

報告地點：明故宮校區A18-807會議室  

主辦單位：機械結構力學及控制國家重點實驗室、航空學院、科協、國際合作處

報告內容：

Piezoelectric and magnetostrictive materials are recognized for their potential utility in a wide variety of sensor and actuator applications. These functional composite materials also play a significant role as electronic components in energy harvesting. Here recent observations on the mechanical behavior of functional composite materials are described through experimental and finite element characterizations. Two topics are itemized below.

1. Piezomechanics and Piezocomposite Materials:

The nonlinear electromechanical response of piezoelectric materials and structures, and the effects of localized polarization switching, domain wall motion, polarization and depolarization etc. on the fracture and deformation under electric fields at various temperatures. As well as the fabrication and characterization of the lead-free piezoelectric composite materials for sensor applications.

2. Magnetostrictive Composites and Structures:

The fabrication and characterization of magnetostrictive fiber/epoxy composites for sensor and energy harvester applications.

報告人簡介：

Dr. Fumio Narita received his Doctor of Engineering from Tohoku University (Japan) in 1998. He has served as a professor in the Department of Materials Processing at Tohoku University since 2017. Narita’s current research interests involve designing and developing piezoelectric and magnetostrictive materials for energy harvesting for the Internet of Things (IoT), as well as developing wearable devices and smart sensors. He is making extensive use of state-of-the-art electromagnetic mechanical characterization techniques in combination with computational multiscale modelling to gain insights into fundamental structure-property relationships of complex multifunctional composite materials. He is also developing biodegradable composites using natural materials such as cellulose nanofibers (CNFs).