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Title: DYNA2D: A nonlinear, explicit, two-dimensional finite element code for solid mechanics: User manual

Technical Report ·
OSTI ID:10161059

This report is the User Manual for the 1992 version of DYNA2D, and also serves as an interim User Guide. DYNA2D is a nonlinear, explicit, finite element code for analyzing the transient dynamic response of two-dimensional solids. The code is fully vectorized and is available on several computer platforms. DYNA2D incorporates a large deformation formulation to allow maximum flexibility in modeling physical problems. Many material models are available to represent a wide range of material behavior, including elasticity, plasticity, composites, thermal effects, and rate dependence. Also, a variety of equations of state are available for modeling the hydrodynamic response of many materials, including explosives and propellants. In addition, DYNA2D has a sophisticated contact interface capability, including frictional sliding, single surface contact, and a new automatic contact option. DYNA2D contains a rezoner to allow nodes to be repositioned when the finite element mesh becomes excessively distorted during a calculation. This rezoner can be used in either an interactive graphics mode or an automatic mode. In addition, DYNA2D now contains a general remeshing option which allows a completely new mesh to be defined for a body during an analysis. A real-time analysis display option allows the analyst to view an evolving graphical display of the analysis results as they are calculated. A material model driver with interactive graphics display is incorporated into DYNA2D to permit accurate modeling of complex material response based on experimental data. This document provides the information necessary to apply DYNA2D to solve a wide range of engineering analysis problems.

Research Organization:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
10161059
Report Number(s):
UCRL-MA-110630; ON: DE92017310
Resource Relation:
Other Information: PBD: Apr 1992
Country of Publication:
United States
Language:
English