Library of Advanced Materials for Engineering (LAME) 4.54

Technical Report · Wed Sep 18 04:00:00 EDT 2019

DOI:https://doi.org/10.2172/1569348· OSTI ID:1569348

Lester, Brian T. ^[1]; Scherzinger, William M. ^[1]

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1. Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)

Accurate and efficient constitutive modeling remains a cornerstone issue for solid mechanics analysis. Over the years, the LAMÉ advanced material model library has grown to address this challenge by implementing models capable of describing material systems spanning soft polymers to stiff ceramics including both isotropic and anisotropic responses. Inelastic behaviors including (visco)plasticity, damage, and fracture have all incorporated for use in various analyses. This multitude of options and flexibility, however, comes at the cost of many capabilities, features, and responses and the ensuing complexity in the resulting implementation. Therefore, to enhance confidence and enable the utilization of the LAMÉ library in application, this effort seeks to document and verify the various models in the LAMÉ library. Specifically, the broader strategy, organization, and interface of the library itself is first presented. The physical theory, numerical implementation, and user guide for a large set of models is then discussed. Importantly, a number of verification tests are performed with each model to not only have confidence in the model itself but also highlight some important response characteristics and features that may be of interest to end-users. Finally, in looking ahead to the future, approaches to add material models to this library and further expand the capabilities are presented.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• Contributing Organization: LAMÉ Team
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1569348
• Report Number(s): SAND--2019-11095; 679805
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING
96 KNOWLEDGE MANAGEMENT AND PRESERVATION