Postdoc for Polymer Damage and Degradation Modeling

What You Will Do

The Solid Mechanics team within the T-3 group of the Theoretical Division is seeking a highly motivated and productive postdoc candidate to develop and/or enhance microstructure aware continuum solid polymer mechanics models, with a focus on predicting the mechanical response of polymers due to various damage and degradation mechanisms. You will develop predictive constitutive theories that rely on microstructural quantities such as molecular weight, cross-linking density, etc. which may vary given specific synthesis processes, environmental conditions, and thermomechanical lifecycles. In addition to theory development, the successful candidate will also perform numerical implementation of the constitutive theory into either Lagrangian or Eulerian based solid mechanics codes. Collaboration and experimental support from the Materials Science and Technology Division (Engineered Materials, MST-7) will help bolster material model calibration and validation. You will engage in frequent communication of accomplishments with the primary mentor, contribute know-how in technical discussions, fulfill technical goals, and satisfy required deliverables, such as codes, models, and know-how in the form of LANL reports, peer-reviewed publications, presentations, and software. You will agree to and follow LANL safety and security procedures.

What You Need

Minimum Job Requirements:

Education/Experience: A Ph.D. in Mechanical Engineering, Solid Mechanics, Materials Science, Civil Engineering, Physics, Chemistry, or related fields is required. The candidate must be within 5 years of completion of their Ph.D. or soon to be completed prior to appointment.

Knowledge and/or experience in the following topics:

• Polymer/amorphous solid mechanics modeling

• Experience in Fortran, Python, or any other programming languages used for scientific applications

• Excellent written and oral communication skills

Desired Qualifications:

Strong knowledge or willingness to learn and apply following topics or techniques:

• Experience in damage and degradation modeling

• Numerical algorithm development for solid mechanics problems

• Commercial finite element software

• Ability to work in a multi-disciplinary team setting

• Strong evidence of peer-reviewed journal publications and conference presentations

Candidates with expertise in atomistic or molecular dynamics modeling, but highly motivated to focus on continuum scale modeling are also encouraged to apply.

Location: This position will be located in Los Alamos, NM.

Note to Applicants: Include current C.V and a cover letter which addresses how your experience fulfills the required and desired qualifications and includes contact information for three professional references. The postdoc appointment is valid for two years. Candidates must be eligible to obtain a Q Clearance, which requires U.S. Citizenship except in extremely rare circumstances.
Where You Will Work

Located in beautiful northern New Mexico, Los Alamos National Laboratory (LANL) is a multidisciplinary research institution engaged in strategic science on behalf of national security. Our generous benefits package includes:

§ PPO or High Deductible medical insurance with the same large nationwide network

§ Dental and vision insurance

§ Free basic life and disability insurance

§ Paid childbirth and parental leave

§ Award-winning 401(k) (6% matching plus 3.5% annually)

§ Learning opportunities and tuition assistance

§ Flexible schedules and time off (PTO and holidays)

§ Onsite gyms and wellness programs

§ Extensive relocation packages (outside a 50 mile radius)
Additional Details

Directive 206.2 - Employment with Triad requires a favorable decision by NNSA indicating employee is suitable under NNSA Supplemental Directive 206.2. Please note that this requirement applies only to citizens of the United States. Foreign nationals are subject to a similar requirement under DOE Order 142.3A.

Q Clearance: Applicants selected will be subject to a Federal background investigation and must meet eligibility requirements* for access to classified matter. This position requires a Q clearance which requires US Citizenship except in extremely rare circumstances. Dependent upon position, additional authorization to access nuclear weapons information may be required that may or may not be available to dual citizens depending upon the circumstances.

*Eligibility requirements: To obtain a clearance, an individual must be at least 18 years of age; U.S. citizenship is required except in very limited circumstances. See DOE Order 472.2 for additional information.

New-Employment Drug Test: The Laboratory requires successful applicants to complete a new-employment drug test and maintains a substance abuse policy that includes random drug testing. Although New Mexico and other states have legalized the use of marijuana, use and possession of marijuana remain illegal under federal law. A positive drug test for marijuana will result in termination of employment, even if the use was pre-offer.
Equal Opportunity: Los Alamos National Laboratory is an equal opportunity employer and supports a diverse and inclusive workforce. All employment practices are based on qualification and merit, without regard to race, color, national origin, ancestry, religion, age, sex, gender identity, sexual orientation or preference, marital status or spousal affiliation, physical or mental disability, medical conditions, pregnancy, status as a protected veteran, genetic information, or citizenship within the limits imposed by federal laws and regulations. The Laboratory is also committed to making our workplace accessible to individuals with disabilities and will provide reasonable accommodations, upon request, for individuals to participate in the application and hiring process. To request such an accommodation, please send an email to or call 1-505-665-4444 option 1.