- 期刊
On the Energy Release Rate of Elliptical Cracks in Anisotropic Elastic Media
並列摘要
This brief note discusses some issues related to the calculation of energy release rate for elliptical cracks in anisotropic solids. By using the Stroh formalism, analytical expressions of the energy release rate are obtained for elliptical cracks in an unbounded anisotropic solid. Because of material anisotropy and geometric asymmetry of the crack, the local energy release rate varies along the crack front. The average energy release rate can be obtained by integrating the local energy release rate over the entire crack front. On the other hand, the total work done by the crack-surface traction on the entire crack opening displacement can be easily evaluated once the crack opening displacement is known. It is shown that the average energy release rate is equal to the rate of change per unit crack area increment of the work done by the external load on the crack opening displacement.
延伸閱讀
- 翁燈景、盧炳志（2010）。Eastodynamic Response of a Sub-Crack with an Inserted Material in a Half-Plane Medium。台灣首府大學學報，(1)，167-187。https://doi.org/10.6607/BTSU.2010.1.8
- 李侑昀（2015）。Fracture Mechanics Analysis for Bending Problems of Anisotropic Plates with Cracks〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU.2015.00206
- Guo, C., & Sun, C. T. (2003). Stationary and Moving Interface Cracks with Contact in Anisotropic Bimaterials. The Chinese Journal of Mechanics, 19(1), 31-39. https://www.airitilibrary.com/Article/Detail?DocID=16800893-200303-19-1-31-39-a
- 蔡孟哲（2017）。A New Boundary Element method fot the Analysis of finite Anisotropic Plate with cracks〔碩士論文，國立臺灣大學〕。華藝線上圖書館。https://doi.org/10.6342/NTU201701433