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Full-Text Articles in Engineering
Experimental Calibration Of Centrally Loaded Built-Up Battened Compression Members, Ghada El-Mahdy Ph.D., P.Eng.
Experimental Calibration Of Centrally Loaded Built-Up Battened Compression Members, Ghada El-Mahdy Ph.D., P.Eng.
Civil Engineering
There is a large diversity in the requirements for designing built-up compression members between international design codes. Most codes, including the North American standards and specifications specify the use of an equivalent or modified slenderness ratio. In general, all North American standards and specifications agree on the need of using a modified slenderness ratio, but differ in the factor used to multiply the local slenderness ratio. Theoretically it is difficult to estimate the exact value of this factor, and using experimental methods does not capture the exact value of this factor either. Hence, a different approach is needed to determine …
Energy Dissipation Of Thin-Walled Cold-Formed Steel Members, David A. Padilla-Llano, Christopher D. Moen, Matthew Eatherton
Energy Dissipation Of Thin-Walled Cold-Formed Steel Members, David A. Padilla-Llano, Christopher D. Moen, Matthew Eatherton
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Optimal Design Of Trusses With Geometric Imperfections: Accounting For Global Instability, Mehdi Jalalpour, Takeru Igusa, James K. Guest
Optimal Design Of Trusses With Geometric Imperfections: Accounting For Global Instability, Mehdi Jalalpour, Takeru Igusa, James K. Guest
Civil and Environmental Engineering Faculty Publications
A topology optimization method is proposed for the design of trusses with random geometric imperfections due to fabrication errors. This method is a generalization of a previously developed perturbation approach to topology optimization under geometric uncertainties. The main novelty in the present paper is that the objective function includes the nonlinear effects of potential buckling due to misaligned structural members. Solutions are therefore dependent on the magnitude of applied loads and the direction of resulting internal member forces (whether they are compression or tension). Direct differentiation is used in the sensitivity analysis, and analytical expressions for the associated derivatives are …