eprintid: 2808 rev_number: 10 eprint_status: archive userid: 354 dir: disk0/00/00/28/08 datestamp: 2017-12-20 02:51:47 lastmod: 2017-12-20 02:51:47 status_changed: 2017-12-20 02:51:47 type: article metadata_visibility: show creators_name: Do, Van Thom creators_name: Doan, Hong Duc creators_name: Nguyen, Dinh Duc creators_name: Bui, Quoc Tinh creators_id: doan.hd.amsl.eng@vnu.edu.vn creators_id: ducnd@vnu.edu.vn title: Phase-field thermal buckling analysis for cracked functionally graded composite plates considering neutral surface ispublished: pub subjects: Mechanics subjects: isi divisions: fac_fema abstract: In this paper, the variational phase field model is adopted to analyze thermal buckling behavior of cracked functionally graded material (FGM) plates. Unlike existing works, the difference between neutral surface and mid-surface of FGM plates is taken into account in the present study. The kinematics of plate is based on first order shear deformation theory, while the crack is simulated by variational phase-field theory. The critical buckling temperature rises of cracked FGM plate is calculated, and the obtained results are then compared with those derived from extended isogeometric analysis by the authors and other numerical methods. We analyze the thermal buckling of cracked FGM plates for both cases: (a) the mid-surface coincides neutral surface, and (b) they are different between each other, and then showing their influence. We also investigate the effects of boundary condition and material properties on thermal buckling of cracked FGM plate. Through these results, it reveals the necessity to consider the difference between neutral surface and mid-surface in thermal buckling analysis. date: 2017 date_type: published publisher: Elsevier full_text_status: public publication: Composite Structures volume: 182 pagerange: 542-548 refereed: TRUE issn: 0263-8223 related_url_url: https://doi.org/10.1016/j.compstruct.2017.09.059 citation: Do, Van Thom and Doan, Hong Duc and Nguyen, Dinh Duc and Bui, Quoc Tinh (2017) Phase-field thermal buckling analysis for cracked functionally graded composite plates considering neutral surface. Composite Structures, 182 . pp. 542-548. ISSN 0263-8223 document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/2808/1/1-s2.0-S0263822317323838-main.pdf