@article{=Chan20144, title = "A Hierarchy in Partial Di_x000B_erential Equations on Material Modeling", journal = "Blucher Material Science Proceedings", volume = "1", number = "1", pages = "50-53", year = "2014", note = issn = "2358-9337" doi ="http://dx.doi.org/10.5151/matsci-mmfgm-097", url ="https://www.proceedings.blucher.com.br/", author = "Chan,Youn-Sha", author = "Paulino,Glaucio H.", keywords = "Functionally graded material, Strain-gradient elasticity, Linear elastic fracture mechanics, Partial di erential equation", }