New Trends in the Fracture of Lightweight Structures
Analysis of fractured lightweight structures has been performed in this paper. In particular a sandwich beam under three point bending containing a crack in the core material very close to the upper skin interface and parallel to the longitudinal beam axis is investigated. Anumerical study of the fractured sandwich beam is developed calculating the stress intensity factors in order to investigate the fracture very close to upper skin interface under mixed-mode loading conditions. In addition a cohesive damage model is presented to simulate crack propagation and kinking into the core under mixed-mode loading conditions. The crack considered, is analyzed with static non-linear two- dimensional finite element analyses.
Lightweight structure Crack Propagation Stress Intensity Factor Cohesive Model
Efstathios E. Theotokoglou Gavriil E. Theotokoglou
School of Applied Mathematical and Physical Sciences Department of Mechanics Laboratory of Testing and Materials National Technical University of Athens Zographou Campus,Theocaris BldGR-015773,Athens,Greece
国际会议
北京
英文
1-10
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）