|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||2018 Technical Division Student Poster Competition
||SPG-34: Geometrical Effect on the Energetic Size Effect Law
||Mohamed Refat, Pere Maimi
|On-Site Speaker (Planned)
Recently, Size effect has been an intense problem in solid mechanics because of its significance for designing parts manufactured of advanced ceramics, composites and concrete including aircraft. Fracture of small structures and cracked specimen representing imperfections other than cracks (e.g. complex shaped notches, heterogeneities, etc.) are not accurately presented by stress or energy release rate approaches. Recently, these imperfections have come up with various criterions to presume the behavior of fracture of quasi-brittle materials.
The focus of this poster is to investigate the geometrical effect on the energetic size effect law on the structural strength in which fracture of cracked and pre-cracked specimen of various material behavior are compared using cohesive crack model. The model was illustrated that the cohesive fracture followed the asymptotic properties for infinite sizes. Plasticity, elasticity with strength limit and linear elastic fracture mechanics (LEFM) were investigated to determine the energetic size effect law.