STUDY ON OPTIMAL AUTOMOTIVE STRUCTURE （研究优化汽车结构）.pdfVIP

18TH INTERNATIONAL CONFERENCE ON COMPOSITE MATERIALS STUDY ON OPTIMAL AUTOMOTIVE STRUCTURE MADE BY CFRTP 1 1 1 1 T. Goto *, T. Matsuo , K. Uzawa , I. Ohsawa and J. Takahashi 1 Department of Systems Innovation, The University of Tokyo, Tokyo, Japan * Corresponding author (t090863@mail.ecc.u-tokyo.ac.jp) Keywords: automobile, FEM, CFRP, CFRTP, structural stiffness, crash safety composed of panel and frame members is used, and 1 Introduction the following three structural properties are CFRTS (carbon fiber reinforced thermosetting calculated by using LS-DYNA. resins) are lightweight and strong materials. Because of these properties, CFRTS has been used in F1 cars, (1) Normalized torsional stiffness (NTS) airplanes, and so on. And some luxury passenger Torsion is given to the model, while two points are automobile have adopted CFRTS to enhance driving fixed not to move. In this condition, displacement is performances. However CFRTSs application field calculated as shown in Fig.2. Then NTS is given as has been limited because of high cost, low following equation [8]. productivity, difficulty in recycling, and so on. Hence, it is difficult to apply CFRTS to mass production automobile [1] to reduce global oil (1) consumption and CO2 emission. Then Japanese