Damage and Fracture Behavior of Cancellous Bone in the Femoral Head
The fracture is an important failure behavior of cancellous bone. Three-point-bending experiment was used to study fracture behavior of cancellous bone. Three group specimens were taken from two human femoral head and there was a non-angled crack and an angled crack in every group respectively. By using Digital Speckle Correlation Method (DSCM), the displacement and strain field were obtained at the crack-tip and the full specimen. The initial crack path was always at the maximal strain location and could be predicted by the DSCM. In the macro-scope, the crack propagation paths towards the load tip, and are independent of the initial crack angle.
Wei Yang, Mamtimin Geni, Tiejun Wang and Zhuo Zhuang
X. F. Yao et al., "Damage and Fracture Behavior of Cancellous Bone in the Femoral Head", Advanced Materials Research, Vols. 33-37, pp. 1043-1048, 2008