| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Research Abstract |
Stress analysis codes based on the formulation of the extended finite element method(XFEM) have been developed. In the codes, solid and shell elements utilized in conventional finite element analyses are enriched through the Heaviside step function and the asymptotic basis functions, and consequently the crack geometry can be modeled independently of the finite elements. Moreover, crack propagation analyses can be performed easily by controlling execution of the developed XFEM codes. The codes were applied to crack and fatigue crack propagation analyses of metal and composite structures, and appropriate results were obtained.
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