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. (1393). INVESTIGATING THERMAL EFFECTS IN NONLINEAR BUCKLING ANALYSIS OF MICRO BEAMS USING MODIFIED STRAIN GRADIENT THEORY. , 38(M2), 303-320. doi: 10.22099/ijstm.2014.2497
. "INVESTIGATING THERMAL EFFECTS IN NONLINEAR BUCKLING ANALYSIS OF MICRO BEAMS USING MODIFIED STRAIN GRADIENT THEORY". , 38, M2, 1393, 303-320. doi: 10.22099/ijstm.2014.2497
. (1393). 'INVESTIGATING THERMAL EFFECTS IN NONLINEAR BUCKLING ANALYSIS OF MICRO BEAMS USING MODIFIED STRAIN GRADIENT THEORY', , 38(M2), pp. 303-320. doi: 10.22099/ijstm.2014.2497
. INVESTIGATING THERMAL EFFECTS IN NONLINEAR BUCKLING ANALYSIS OF MICRO BEAMS USING MODIFIED STRAIN GRADIENT THEORY. , 1393; 38(M2): 303-320. doi: 10.22099/ijstm.2014.2497

INVESTIGATING THERMAL EFFECTS IN NONLINEAR BUCKLING ANALYSIS OF MICRO BEAMS USING MODIFIED STRAIN GRADIENT THEORY

Iranian Journal of Science and Technology Transactions of Mechanical Engineering
شناسنامه علمی شماره، دوره 38، M2، دی 2014، صفحه 303-320    اصل مقاله (550.11 K)
شناسه دیجیتال (DOI): 10.22099/ijstm.2014.2497
چکیده
In this paper, thermal effects in nonlinear buckling analysis of micro beams is
investigated. Modified strain gradient theory with nonlinear von-Karman strain-displacement
relations and small scale parameters are used to derive the buckling behavior of micro beams. The
Poisson’s effect is included and its significance is demonstrated. Buckling behavior for two
different cases: 1) immovable axial boundary condition 2) movable axial boundary condition, are
studied and for each one the results for hinged-hinged and clamped-clamped beams are presented.
The analysis shows that modified strain gradient theory leads to a higher critical buckling load in
comparison with the classical and couple- stress theories. The results are verified using previous
related works.
کلیدواژه‌ها
Thermal environment؛ nonlinear buckling analysis؛ modified strain gradient theory؛ microbeam؛ nanobeam
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