: We are seeking a postdoctoral appointee to develop and implement mechanics constitutive models for composite materials found within molten salt batteries and filled encapsulant materials\. Examples of these materials include three\-phase pressed granular materials and highly porous insulations\. Models must accurately represent experimental data and must operate under a variety of thermal, fluid, and aging conditions\. Key functions of this role include, but are not limited to: + Development of constitutive models, both phenomenological and fundamental, that accurately reflect experimental data+ Implementation of models within existing finite element method codes+ Analysis of battery behavior and mechanical performance+ Investigation of appropriate numerical techniques and multi\-physics coupling approaches+ Documentation of work in the form of journal publications and technical reports and presentation of work to internal customers and at scientific conferences Required: + PhD, conferred within 5 years prior to approval, in Mechanical Engineering, Chemical Engineering, Materials Science/Engineering, or other related engineering, computer, or natural science field+ Experience developing and using nonlinear mechanical constitutive models+ Experience with the Linux operating system+ Experience with a high\-level programming language such as FORTRAN, C, or C\+\++ Ability to obtain and maintain a DoE Q clearance Desired: + Experience with Matlab, Python, scripting languages, and grid generation software+ Experience with the finite element method or other related numerical discretization approach+ Experience with code and solution verification for systems of partial differential equations+ Software development experience, including working with development teams using object\-oriented frameworks would be valuable+ Thorough knowledge of and applied experience with scientific and engineering methods and with discipline's standards for the ethical conduct of research+ Strong verbal and written communication skills and an ability to interact well with fellow technical workers with diverse technical backgrounds+ Interest in research spanning multiple disciplines, including heat transport and fluid dynamics \(porous flow\) Department Description: The Component Science and Mechanics Department \(1556\) provides state\-of\-the\-art mechanics/dynamics research and science\-based engineering solutions for component development and assessment\. Focus areas for the department include: viscoelastic mechanics, joining, deformation, fracture, failure, mechanical interfaces, constitutive materials models, reduced order models, multi\-physics/multi\-scale models, component reliability, margin assessment, and uncertainty propagation\. Areas of active interest include: interconnects and encapsulation, fatigue and fracture, energy dissipation at contacts, microstructural mechanics, shock and vibration, crack initiation and propagation, and adaptive structures\. Computational and physical simulations, including solid mechanics and structural dynamics for both linear and nonlinear systems, are utilized in a dynamic multidisciplinary teaming environment\. About Sandia: Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting\-edge work in a broad array of areas\. Some of the main reasons we love our jobs: + Challenging work withamazingimpact that contributes to security, peace, and freedom worldwide+ Extraordinary co\-workers+ Some of the best tools, equipment, and research facilities in the world+ Career advancement and enrichment opportunities+ Flexible schedules, generous vacations,strongmedical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance\* _World\-changing technologies\. Life\-changing careers\._ Learn more about Sandia at: http://www\.sandia\.gov \*These benefits vary by job classification\. Security Clearance: Position requires a Department of Energy \(DOE\) granted Q\-level security clearance\. Sandia is required by DOE directive to conduct a pre\-employment drug testing, and a pre\-employment background review that includes personal reference checks, law enforcement record and credit checks, and employment and education verifications\. Applicants for employment must be able to obtain and maintain a DOE Q\-level security clearance, which requires U\.S\. citizenship\. Applicants offered employment with Sandia are subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance\. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by the DOE, rendering the inability to perform the duties assigned and resulting in termination of employment\. EEO Statement: Equal opportunity employer/Disability/Vet/GLBT : This postdoctoral position is a temporary position for up to one year, which may be renewed at Sandia's discretion up to five additional years\. The PhD must have been conferred within five years prior to employment\. Individuals in postdoctoral positions may bid on regular Sandia positions as internal candidates, and in some cases may be converted to regular career positions during their term if warranted by ongoing operational needs, continuing availability of funds, and satisfactory job performance\.
Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation with major facilities in Albuquerque, New Mexico and Livermore, California. We are a world-class team of scientists, engineers, technologists, post docs, and visiting researchers all focused on cutting-edge technology, ranging from homeland defense, global security, bio...technology, and environmental preservation to energy and combustion research, computer security, and nuclear defense. To learn more, please visit our website at www.sandia.gov. We are searching for a Manager for the Semiconductor Device Sciences Department for the Albuquerque facility. Must be able to obtain and maintain a DOE Security Clearance.