LSJ-Redacted_ESI.pdf

ACC-WRN FT 4293, 03 MAY 2018 Previous Edition is Obsolete Page 2 of 2 crashworthiness and many other computer based modeling and simulations. It will affect the development of new and improved technologies to support and increase the safety of the warfighter, and it will cause significant project downtime.

6. Market Research: There are several commercially available software packages that can be used for pre- and post-processing of modeling and simulation with Livermore Software - DYNamic Analysis (LS-DYNA), such as ESI VISUAL Environment, HyperMesh and Automatic Net generation for Structural Analysis (ANSA). Survivability & Protection Modeling and Simulation Team (GVSC-Analytics) carried out online research on these software vendor web pages in the summer and fall of 2020, attended vendor’s seminars on their pre- and post-processing software capabilities, and communicated with these software vendors at those meetings during 2019-2020. Of the three vendors, ESI VISUAL Environment provides the interface for LS-DYNA models in the best user friendly way. ESI VISUAL Environment is unique in terms of capability, ease of use and user friendliness. It provides a very similar user interface for LS-DYNA pre- and post-processing, which is a unique feature and makes Finite Element Analysis (FEA) model development easier. No other vendors can provide similar tools, both in functionality and cost, at this time. To switch to a not-so-compatible software would involve extensive retraining of at least five GVSC engineers in the use of alternate software, including Government employee time and training costs

, and would take their time away from meeting the goals and objectives of GVSC’s customers. Also, all models that have been developed over the last ten years in ESI VISUAL Environment would have to be converted to a competitor’s software, which would be a time consuming and costly task. The market research reflected in this paragraph was performed during the period of October, 2019 through October, 2020. The research was done by Dr. Jian Kang, a Research Mechanical Engineer for GVSC-Analytics.

7.

8. Technical Certification: I certify this justification is accurate and complete to the best of my knowledge and belief.

Name: Jian Kang Title: Research Mechanical Engineer Signature: //s// Jian Kang Date: 1/19/2021

9. Contracting Officer Certification: I certify this justification is accurate and complete to the best of my knowledge and belief.

Name: Kimberly A. Nelson Title: Contracting Officer Signature: //kan// Date: 03 February 2021