... elasticity, delayed elasticity, secondary creep and primary creep was presented. An available formalism with three parameters was considered for primary creep. The unknown parameters were identified with some available experimental results. Then, the identification was validated with other experimental...

...J. Błachut; O. Ifayefunmi This is the first study into elastic-plastic buckling of unstiffened truncated conical shells under simultaneously acting axial compression and an independent external pressure. This is both a numerical and experimental study. Domains of combined stability are obtained...

... illustrates the algorithm of this process. The damping in an offshore wind turbine system consists of structural, aerodynamic, and hydrodynamic damping. The first is caused by the thermal effects of repeated elastic strain and friction [( 12 )]. For lattice structures, it depends on the fabrication...

..., commercial numerical tools are uneconomical due to their high prices. pipeline S-lay elastic seabed current numerical analysis elasticity internal stresses marine engineering numerical analysis offshore installations pipelines seawater soil 21 08 2010 31 03 2011 06...

...Weiwei Yu; Dale G. Karr; Pedro M. Vargas Neuber’s theory of elastic and inelastic stress concentration factors are applied to the pit corrosion of plates. The finite element method is then employed to model the problem numerically and to calculate the stress concentration factors for semioblate...

... structural design, it is necessary to accurately take into account the effect of the edge condition in analyses of plate behavior in terms of buckling and post-buckling behavior. The aim of this study is to develop a new method for analyzing the geometric nonlinear behavior (i.e., elastic large deflection...

... between aircushions was considered. Hydroelastic responses were estimated not only in terms of elastic motion, but also in terms of vertical bending moment. The results confirmed the existence of response reduction, especially noticeable for the vertical bending moment in a wide wavelength range...

... to Gaussian, but wide banded. The critical structural responses are determined by coupled aerohydro-elastic time domain simulation. Based on different simulations (20 1 h, 20 2 h, 20 3 h, and 20 5 h), the mean up-crossing rate has been found in order to predict the extreme structural responses. The most...

... helical strakes were tested in an attempt to find the most suitable strake configuration. The experiments were performed in a steady flow flume with an elastically mounted rigid circular cylinder of 500 mm in length and 50 mm in outer diameter. The test cylinder was spring-supported in both the inline...

... G = − ( F p + F g + N 0 ) I ( 1 ) 09 07 2009 21 04 2010 01 04 2011 01 04 2011 boats elasticity flexible structures structural engineering hydroelasticity restoring stiffness geometric stiffness segmented barge...

... with stiffeners Smearing of stiffeners into the plate 28 10 2009 14 06 2010 31 03 2011 31 03 2011 compressive strength elasticity shear modulus ships aluminum high speed craft crushing strength and behavior LS-DYNA hull geometry stiffener Impact...

...S. T. Lie; Z. M. Yang This paper concerns on the development of numerical models for cracked square hollow sections (SHSs) T-, Y-, and K-joints. Based on these numerical models, the plastic collapse loads P c are calculated using nonlinear finite element method and through twice-elastic compliance...

...J. Błachut; O. Ifayefunmi This paper studies the static stability of metal cones subjected to combined, simultaneous action of the external pressure and axial compression. Cones are relatively thick; hence, their buckling performance remains within the elastic-plastic range. The literature review...

... as 22% of the linear wave exciting forces. For an elastic body with large rigidity, the influence of nonlinear fluid force on the responses may be larger than the first-order exciting forces and should be considered in the hydroelastic analysis. Bishop , R. E. D. , and Price , W. G...

... prerequisite in understanding the response of these types of structures in practice. 02 07 2007 15 05 2008 01 03 2010 01 03 2010 boundary-value problems elasticity oil drilling pipelines vibrations The use of highly flexible risers for oil drilling purposes is widespread...

... modeled for the upper and lower stroke limit 11 01 2008 07 05 2009 21 12 2009 21 12 2009 elasticity finite element analysis friction gas industry offshore installations petroleum industry pneumatic systems Many platforms have been designed and installed...

... of the CPU time records for the two simulations. Simulations were run on a computer with 1.8 GHz CPU and 1 GByte physical memory. 03 03 2007 18 12 2007 11 12 2008 elasticity flexible structures marine systems time-domain analysis Hybrid frequency-time...

... is small) is the constant factor multiplied by the highest derivative in the governing differential equation. 16 12 2006 25 05 2007 04 12 2007 bending elasticity marine engineering offshore installations structural engineering vibrations Slender structures are used very...

..., the only stiffness contribution for a freely floating structure. It is interesting to compare the “elastic” stiffness and the hydrostatic stiffness for the deformational modes. As is usual, the modes have been mass normalized and, therefore, the elastic stiffness is the square of the natural frequencies...

...Tetsuya Matsui The boundary value problem is formulated to predict the hydroelastic response of a matlike floating circular plate advancing slowly in waves. The plate is idealized as an elastic plate with zero draught, and the potential flow theory is employed with low forward-speed assumptions...