研究室紹介

Strength and Vibration

Department of Aeronautics and Astronautics, Faculty of Engineering

Department of Aeronautics and Astronautics, Graduate School of Engineering

Department of Mechanical and Aerospace Engineering, Aeronautics and Astronautics Course, School of Engineering

Strict weight reduction is required for aerospace vehicles as well as automobiles from the viewpoint of energy saving, and advanced composite materials have been frequently used because of their high specific strength and modulus. However, lightweight structural design that fully utilizes the characteristics of advanced composite materials has not yet been achieved. To overcome this difficulty, the Strength and Vibration Laboratory aims to enhance reliability of composite structures through modeling the lifecycle of composites from manufacturing to damage progress and fracture. Furthermore, we aim at creating new concepts of composite material usage by studying new manufacturing processes, a new test method for delamination propagation resistance, use of carbon-nanotube spun sheets, and damage identification using ultrasonic propagation moving diagrams, and so on.

High-speed photography of the crack propagation in a CFRP/foam-core sandwich panel due to four-point bending

Staff

Prof. Shigeki Yashiro

The Main Research Topics

  • Modeling and strength evaluation considering complex microstructure of composite materials
  • High-velocity soft-body impact (bird strike) on composite laminates
  • A new test method for interlaminar fracture toughness of composite laminates
  • Modeling of manufacturing process of composite materials and structures
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