| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
Probabilistic evaluation of compressive strength of composite stiffened plate is studied by focusing the debonding of the interface between the skin and frange. The failure of the skin/frange interface was discussed fracture mechanically first and the toughness of the skin/frange interface can be used to predict the debonding of skin/frange interface. Then, the interlaminar tensile strength of the laminate was measured and the interfacial strength was probabilistically evaluated. Finally, a finite element analysis was performed for a composite stiffened panel. The failure load and the expected position of failure mechanically assessed agreed well with the experiment done at JAXA before.
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