Four-point bending test on a middle strength rock: numerical and experimental investigations
作者: A. MardalizadR. ScazzosiA. ManesM. Giglio
作者单位: 1Politecnico di Milano, Department of Mechanical Engineering, Via La Masa 1, 20156 Milan, Italy
刊名: Fracture and Structural Integrity, 2017, Vol.11 (41), pp.504 - 523
来源数据库: Gruppo Italiano Frattura
DOI: 10.3221/IGF-ESIS.41.62
关键词: Flexural testKCCDracker-PragerPietra SerenaFracture
原始语种摘要: Developing a reliable numerical modelling technique is considered as challenge for fracture assessment of the geological materials, which are much subjected to hydrostatic pressure. For this purpose, the mechanical behaviour and the fracture pattern of a middle strength rock material, called Pietra Serena sandstone, is investigated both numerically and experimentally under a Four-Point Bending (also called Flexural) testing program. For the numerical approach, an innovative method, namely FEMcoupled to-SPH, is exploited due to its capabilities in dealing with rock mechanics related issues. Two different material models, which are the Karagozian and Case Concrete (KCC) and the Extended (Linear) DruckerPrager, are exerted to assess their capabilities. The Flexural strength and the crack...
全文获取路径: Gruppo Italiano Frattura 

  • numerical 数字的
  • point 
  • studied 学习
  • innovative 创新立异
  • middle 中间的
  • strength 强度
  • experimental 实验的
  • material 充填料
  • various 千变万化的
  • assess 查定