Computational Modeling of Fracture and Fatigue in Hydrogen Environments

RAP opportunity at National Institute of Standards and Technology     NIST

Computational Modeling of Fracture and Fatigue in Hydrogen Environments

Location

Material Measurement Laboratory, Applied Chemicals and Materials Division

opportunity location
50.64.72.B7999 Boulder, CO

NIST only participates in the February and August reviews.

Advisers
name email phone
May L Martin [email protected] (303) 497-5235
Andrew J. Slifka [email protected] 303.497.3744
Description

As hydrogen-fueled technologies gain traction throughout the world, a better set of standards is needed to govern the building of hydrogen-safe infrastructure.  As with most environmental degradation problems, industry-specific testing has been prioritized, leading to phenomenological standards that are adjusted as new data or new failures cause readjustments.  Physics-based predictive models are needed, which can remove or reduce the need for exhaustive testing of each new material.  NIST has one of the few in situ hydrogen testing facilities in the world and is producing data which has significantly improved several hydrogen performance standards.  However, modeling is needed to extend the applicability of the data produced to multiple standards and particularly to full classes of materials.  Techniques such as multi-scale computational modeling are needed to distill the current knowledge of hydrogen embrittlement mechanisms, from mechanical testing, microscopy, and diffraction techniques, into physics-based predictive models needed to implement hydrogen-safe infrastructure and predict hydrogen-resistant alloy designs for the future.  NIST has access to multiple modeling software options (e.g. ABAQUS, ANSYS, COMSOL), as well as large computational clusters. This opportunity focuses on applying or developing models of fracture and fatigue of materials exposed to hydrogen.

key words

Fracture; Fatigue; Hydrogen; Modeling; Crack-growth; Crack-initiation; Computational; Steel; Deformation;

Eligibility

Citizenship:  Open to U.S. citizens

Level:  Open to Postdoctoral applicants

Stipend
Base Stipend Travel Allotment Supplementation
$82,764.00 $3,000.00