caa a22 4500 469124091 CHVBK 20180323133146.0 cr unu---uuuuu 170328e19920201xx s 000 0 eng 10.1007/BF00034179 doi (NATIONALLICENCE)springer-10.1007/BF00034179 Modeling of impact-induced spall fracture and post spall behavior of a circular plate [Elektronische Daten] [J. Eftis, J. Nemes] The ductile spall fracture and post-spall behavior of a circular target plate after impact with a flyer plate having small diameter, is modeled by means of a viscoplastic constitutive theory that includes the microvoid volume fraction as a scalar material damage variable. Incorporation of the damage parameter permits description of rate-dependent, hardening, compressible inelastic deformation and ductile fracture, where local fracture is defined in terms of a critical microvoid volume fraction. Multidimensional axisymmetric strains are developed where, because of the edge effect of the smaller flyer plate, nonplanar as well as planar waves are generated. Numerical simulations demonstrate the destructive effect of increasing the velocity of impact. They also illustrate the influence of varying the viscosity parameter associated with the microvoid growth on the development of damage. The change in location of the spall fracture caused by reduction of the flyer plate thickness is shown, as is the fragmented behaviour of the target up to 50 μs after initiation of the spall fracture. Kluwer Academic Publishers, 1992 Eftis J. Department of Civil, Mechanical and Environmental Engineering, George Washington University, 20052, Washington, DC, USA aut Nemes J. Mechanics of Matherials Branch, Materials Science and Technology Division, Naval Research Laboratory, 20375, Washington, DC, USA aut International Journal of Fracture Kluwer Academic Publishers 53/4(1992-02-01), 301-324 0376-9429 53:4<301 1992 53 10704 https://doi.org/10.1007/BF00034179 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00034179 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Eftis J. Department of Civil, Mechanical and Environmental Engineering, George Washington University, 20052, Washington, DC, USA aut NATIONALLICENCE 700 1- Nemes J. Mechanics of Matherials Branch, Materials Science and Technology Division, Naval Research Laboratory, 20375, Washington, DC, USA aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 53/4(1992-02-01), 301-324 0376-9429 53:4<301 1992 53 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer