TY - RPRT TI - Mixed-mode stress intensity factors computation in functionally graded materials using a hypercomplex-variable finite element formulation AU - Ramirez-Tamayo, Daniel AU - Balcer, Matthew AU - Montoya, Arturo AU - Millwater, Harry (ORCID:0000000170979283) PY - 2020 DO - 10.1007/s10704-020-00489-5 UR - https://www.osti.gov/biblio/1850426 ID - 1850426 ER -