eng Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 2018-11-28 6 3 127 131 10.12691/ajme-6-3-5 AJME2018635 article Talal S. Mandourah tsmandourah@gmail.com 1 Mechanical Engineering Department, College of Engineering and Islamic Architecture, Umm Al-Qura University, Makkah, KSA Titanium foam is considering an important competitive in bio-system applications, this is due to its compatibility as well as fascination. Getting good sufficient data about fracture and mechanical properties are needed demand for scientific and Engineering works in the field of biomaterial and bio-system. Fracture toughness is measured numerically using J-integral finite element method based on crushable foam model. Three-point single notch bending specimen is used for the foam of 62.5 %, and 65 % porosity to measured surface release energy GIC . this test is considered a stander test for linear material. it is found to be (2.3), and (1.36) kJ/m2, for 62.5% and 65 % porosity respectively. this is usually used in human implants. The measured GIC is acceptable compared with that experimentally measured in other published paper. http://pubs.sciepub.com/ajme/6/3/5/ajme-6-3-5.pdf titanium foam J-integral porous material crushable foam model