美国桑迪亚国家实验室计算固体力学博士后

Job Description

The Mechanics of Materials Department is seeking a postdoctoral appointee to assist in the development of algorithms and simulation strategies for studying the effects of environment on the microstructural response of structural metal alloys. On any given day, you may be called on to: + Use and develop Sandia computational codes to perform simulations of crystal plasticity and damage evolution coupled to thermal and diffusion calculations. The goals of these calculations include advancing understanding of the phenomenology of the fundamental mechanisms of deformation and to quantify the sensitivity of the macroscale response to variations in microstructure and gradients in the concentration of the diffusive species; + Collaborate with code developers, experimentalists, and material scientists to implement solutions available to the broader community with a focus on developing the requisite understanding to enable engineering decision-making.

Required:
+ PhD in Mechanical, Civil, or Aerospace Engineering or other related discipline; + Technical background in computational solid mechanics; + Experience with modeling and simulation tools; ability to assess tool capabilities and limitations when selecting and utilizing tools to perform simulations; + Proficiency in modern programming languages such as C++ and Python; + Ability to obtain and maintain a US DOE Q level security clearance.

Desired:
+ Evidence of relevant and exceptional research achievements as demonstrated in the form of technical publications, presentations, software tools, and/or knowledge of applications; + Skilled at utilizing high-performing computing resources for performing large-scale simulations; + Technical background in materials science, especially metallurgy with a focus on hydrogen embrittlement; + Experience with code development for complex computational tools, preferably as part of a team; + Ability to communicate results effectively in oral and written forms; + Ability to work in a collaborative team environment.

Department Description:

The Mechanics of Materials Department performs work primarily in experimental and computational solid mechanics to characterize and predict the mechanical behavior of engineering materials. We specifically target increased understanding of the phenomenology of plasticity, fracture and failure across broad ranges of temperature, strain rate, and environmental conditions. Our numerical investigations span length and time scales from atomistic simulations of fundamental material behavior to continuum simulations of component response. We also develop the required numerical methodologies so that our material models can be implemented in high-performance computing simulations to run on the high-performance computing resources available at Sandia. Our experimental work covers a broad spectrum from discovery to characterization to model validation. We have experimental facilities with capabilities to investigate material behavior at nanometer to meter length scales, ambient and elevated temperatures, and quasistatic to dynamic rates. The combination of computational and experimental researchers in our department fosters a unique environment allowing direct and meaningful collaboration between the disciplines. Motivated by experimental observations, we develop mathematical models to simulate material responses under various loading and environmental conditions. Conversely, observations of simulated material behavior identifies gaps in knowledge that drive the development and execution of new experimental techniques and investigations. We support the various missions of the laboratory by continuously advancing the state of the art in assessing and predicting material performance in high-consequence applications.

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:

This position does not currently require a Department of Energy (DOE)-granted security clearance. Sandia will conduct a pre-employment drug testing, and a pre-employment background review that includes personal reference checks, law enforcement record checks, and employment and education verifications. Further, employees in New Mexico must pass a U.S. Air Force background screen for access to the work site. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause access to be denied or terminated, rendering the inability to perform the duties assigned and resulting in termination of employment. If hired without a clearance, and one subsequently becomes required or you bid on positions that require a DOE-granted security clearance, a pre-processing background review that includes personal reference checks, law enforcement record and credit checks, and employment and education verifications may be conducted prior to a required federal background investigation. Applicants for DOE-granted security clearances must be U.S. citizens and be able to obtain and maintain the appropriate DOE security clearance as required for the position.