Local zigzag effects and brittle delamination fracture of n-layered beams using a structural theory with three displacement variables
作者: Roberta MassabòIlaria Monetto
作者单位: 1Department of Civil, Chemical and Environmental Engineering, University of Genova, Italy
刊名: Frattura ed Integrità Strutturale, 2020, Vol.14 (51), pp.275-287
来源数据库: Gruppo Italiano Frattura
DOI: 10.3221/IGF-ESIS.51.22
关键词: Structural theoryZigzagHomogenizationCohesive zone modelBrittle fractureLaminate
原始语种摘要: Equivalent single layer theories for layered beams effectively and accurately predict global displacements and internal force and moment resultants using a limited number of displacement variables. However, they cannot reproduce local effects due to material architecture or weak/imperfect bonding of the layers, such as zigzag displacement fields, displacement jumps at the layer interfaces and complex transverse stress fields, nor can they simulate delamination damage growth. In this work we will present some applications and discuss advantages and limitations of a recently formulated zigzag model. The model, through a modification of the equilibrium equations of an equivalent single layer theory, which maintains the same number of variables, reproduces local effects and delamination...
全文获取路径: Gruppo Italiano Frattura 

  • variables 变量
  • theory 理论
  • delamination 分层
  • zigzag 曲折的
  • fracture 断口
  • displacement 迁移
  • three 
  • imperfect 不完全的
  • layered 成层的
  • equilibrium 平衡