Modified K&C model for cratering and scabbing of concrete slabs under projectile impact

• Published in: International journal of impact engineering Vol. 108; pp. 217 - 228
• Main Authors: Kong, Xiangzhen, Fang, Qin, Li, Q.M., Wu, Hao, Crawford, John E.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.10.2017; Elsevier BV
• Subjects: Axial stress; Compression tests; Computer simulation; Concrete; Concrete slabs; Cratering; Craters; Damage accumulation; Finite element method; Mathematical models; Modified K&C model; Numerical analysis; Numerical prediction; Parameter modification; Parameter sensitivity; Penetration; Perforation; Performance enhancement; Scabbing; Sensitivity analysis; Studies; Tensile strength; Cratering; Scabbing; Concrete; Penetration; Modified K&C model

•Four modifications are made to the K&C model for the parameters of the strength surfaces, the dynamic increase factor for tension, the relationship between yield scale factor and damage function, and the tensile damage accumulation.•Improved performances of the modified K&C model are demons...