| Budget Amount *help |
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2015: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2013: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
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| Outline of Final Research Achievements |
For improving the manufacturing process of composite structures, it is essential to evaluate three-dimensional microscopic deformation that depends on mechanical microstructures consisting of fibers and polymer matrix, and to optimize the microstructures of composites from viewpoints of the reduction of manufacturing-induced residual stress and the enhancement of composite strength and durability. For this purpose, we established a method to evaluate fatigue damage progress of composites based on infrared thermography and a method to evaluate local deformation caused by preforming process of woven fabrics based on image-based measurements. Utilizing the methods, we clarified micromechanical factors which influence the fatigue damage process of materials and forming process of preforms. Furthermore, we presented fiber-based simulations to analyze macroscopic mechanical properties of composite materials considering micromechanical information including fiber architecture in composites.
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