Tuesday  |  Virtual Track 4  |  09:12 AM–09:24 AM

#11632, Evaluation of Thermal Deformation of Fastening Structure of Carbon Fiber Reinforced Plastic and Aluminum Using Stereo Image Correlation

This paper describes the evaluation of thermal deformation of the CFRP-aluminum fastening structure using stereo DIC (stereo digital image correlation). This structure is used at the FOB (Fixed Optical Bench) of the astronomical satellite “ASTRO-H”. The fastening structure is heated up with a self-made thermostat and the in-plane displacement on a three-dimensional surface of it is measured using stereo DIC. Then, the strain is evaluated and the results are compared with those obtained by FEM. By comparing experimental results with those of finite element analysis, the finite element model is improved, then analysis of thermal deformation of the fastening structure is made more accurate and easily.

Ayumu Fuchigami   Aoyama Gakuin University
Satoru Yoneyama   Aoyama Gakuin University
Ken Goto   Japan Aerospace Exploration Agency
Kosei Ishimura   Waseda University