Abstract. Due to their microstructure, quasi brittle materials present rough cracks. Under sliding of the crack lips, this roughness involves in one hand induced opening and in the other hand some apparent plasticity which is due to the interlocking of the crack lips combined with Coulomb’s friction. The proposed model is written under the irreversible thermodynamics framework. Micromechanics u...

STuDY DeSign: Prospective study. ObJeCTive: To study the validity of Hybrid construction (Anterior Lumbar Interbody Fusion) ALIF at one level and (Total Disc Arthroplasty) TDA at the adjacent level for two levels disc disease in the lumbar spine as an alternative surgical strategy compared to two levels disc arthroplasties. SuMMARY OF bACkgROunD DATA: With growing evidence that fusion construct...

In fracture mechanics and failure analysis, cracked media energy and consequently stress intensity factors (SIFs) play a crucial and significant role. Based on linear elastic fracture mechanics (LEFM), the SIFs and energy of cracked media may be estimated. This study presents the novel modification of decoupled scaled boundary finite element method (DSBFEM) to model cracked media. In this metho...