Mechanical - Structural Analyst

About This Role

Perform computational modeling and simulation using advanced, nonlinear finite element analysis to evaluate structural and material responses for LLNL stockpile programs and support the engineering design, testing, and certification of the nation's nuclear weapon systems.

Responsibilities

• Contribute to the development of finite element analysis (FEA) models of mechanical components and integrate components into structural models at the system level
• Perform structural and/or thermal analyses using in-house codes for design, modification, optimization, testing, and certification of nuclear weapon systems
• Document and present simulation and analysis results and technical approaches
• Collaborate with teams of analysts, code developers, engineers, and subject matter experts using established workflows
• Support deliverables with occasional travel as needed

Requirements

• Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship
• Masters degree in mechanical, structural, or aerospace engineering, or structural/applied mechanics, or related field, or the equivalent combination of education and related experience
• Experience with commercial FEA tools (LS-DYNA, ABAQUS, ANSYS, ADINA or similar), or NNSA national laboratory codes (ParaDyn, Diablo, Sierra, or similar)
• Fundamental knowledge of continuum mechanics (or advanced solid mechanics) and the finite element method
• Ability to work under general direction and use independent judgment to determine analysis methods and evaluation criteria
• Proficient verbal and written communication skills necessary to effectively collaborate in a team environment and present and explain technical information
• Ability to travel occasionally

Qualifications

• Masters degree in mechanical, structural, or aerospace engineering, or structural/applied mechanics, or related field, or the equivalent combination of education and related experience.

Nice to Have

• Experience with finite element meshing software to develop high quality hexahedral based meshes
• Programming experience, particularly in Python and/or MATLAB
• Familiarity with Git version control environments
• Experience with commercial FEA codes such as Abaqus, Ansys, LS-Dyna, Nastran, CTH, or similar; or with NNSA national laboratory codes such as ParaDyn, Nike3D, Dyna3D, Diablo, Sierra, ALE3D, or similar
• Experience with the calibration and benchmarking of material models on empirical test data and working knowledge in experimental techniques and verification/validation practices
• Familiarity with FEA and Computational Mechanics Theory and practice, including nonlinear solid mechanics, heat transfer and material modeling

Skills

* Required skills

Benefits