Local Stress and Damage Response
of Polycrystal Materials to Light Shock
Loading Conditions via Soft
Scale-Coupling
C. A. Bronkhorst, P. W. Marcy, S. A. Vander Wiel, H. Cho, V. Livescu,
and G. T. Gray III
1 Introduction
Research in the past six decades has shown tremendous progress in the ability to
represent the process of ductile damage under dynamic loading conditions. Even
though good progress has been made, many challenges remain in effectively representing this complex physical process accurately, and without numerical artifacts.
Work discussed in this chapter is a current representation of developments which
have taken place over several years, beginning with the work of Johnson [31] and the
development of a constitutive model for shock loaded copper representing nonlinear
elasticity, plasticity, and evolution of local porosity. Johnson [31] recognized the
significance of the aggregate nature of polycrystalline metallic materials and used a
unit cell analysis of the elastic–plastic response of the material under rapidly loaded
conditions. Inertial effects were recognized as important but were not included
in the analysis of copper presented. The model was applied to problems of plate
C. A. Bronkhorst ()
Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, USA
Department of Engineering Physics, University of Wisconsin, Madison, WI, USA
e-mail: cbronkhorst@wisc.edu
P. W. Marcy · S. A. Vander Wiel
Computer, Computational, and Statistical Sciences Division, Los Alamos National Laboratory,
Los Alamos, NM, USA
H. Cho
School of Mechanical and Aerospace Engineering, Korea Advanced Institute of Science and
Technology, Daejeon, Republic of Korea
V. Livescu · G. T. Gray III
Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM,
USA
© Springer Nature Switzerland AG 2020
S. Ghosh et al. (eds.), Integrated Computational Materials Engineering (ICME),
https://doi.org/10.1007/978-3-030-40562-5_7
199
of Polycrystal Materials to Light Shock
Loading Conditions via Soft
Scale-Coupling
C. A. Bronkhorst, P. W. Marcy, S. A. Vander Wiel, H. Cho, V. Livescu,
and G. T. Gray III
1 Introduction
Research in the past six decades has shown tremendous progress in the ability to
represent the process of ductile damage under dynamic loading conditions. Even
though good progress has been made, many challenges remain in effectively representing this complex physical process accurately, and without numerical artifacts.
Work discussed in this chapter is a current representation of developments which
have taken place over several years, beginning with the work of Johnson [31] and the
development of a constitutive model for shock loaded copper representing nonlinear
elasticity, plasticity, and evolution of local porosity. Johnson [31] recognized the
significance of the aggregate nature of polycrystalline metallic materials and used a
unit cell analysis of the elastic–plastic response of the material under rapidly loaded
conditions. Inertial effects were recognized as important but were not included
in the analysis of copper presented. The model was applied to problems of plate
C. A. Bronkhorst ()
Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, USA
Department of Engineering Physics, University of Wisconsin, Madison, WI, USA
e-mail: cbronkhorst@wisc.edu
P. W. Marcy · S. A. Vander Wiel
Computer, Computational, and Statistical Sciences Division, Los Alamos National Laboratory,
Los Alamos, NM, USA
H. Cho
School of Mechanical and Aerospace Engineering, Korea Advanced Institute of Science and
Technology, Daejeon, Republic of Korea
V. Livescu · G. T. Gray III
Materials Science and Technology Division, Los Alamos National Laboratory, Los Alamos, NM,
USA
© Springer Nature Switzerland AG 2020
S. Ghosh et al. (eds.), Integrated Computational Materials Engineering (ICME),
https://doi.org/10.1007/978-3-030-40562-5_7
199