대한기계학회논문집 (Transactions of the Korean Society of Mechanical Engineers)
- 제19권2호
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- Pages.330-337
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- 1995
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- 1225-5963(pISSN)
DOI QR Code
균열을 내재한 회전체의 에너지방출률
The Energy Release Rate for Cracks in a Rotating Continuum
초록
For a rotating body with cracks, the new energy release rate equation is presented. The derived equation is different from the other researcher's results. It is a path-independent integral which excluded the derivatives of displacements near the crack tip, thereby improving the numerical accuracy of the energy release rate computation. Moreover, as the equation was derived on basis of the energy principle and non-linear elasticity without assumptions, it can applied to the cracked body with arbitrary shape under elastic-plastic deformation. Several examples are treated to demonstrate the efficiency and accuracy of the proposed method compared to existing methods.
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