A rational design evaluation procedure is investigated for the elastic overall buckling load carrying capacity of single layer cylindrical lattice shell roof structures. The nature of the imperfection sensitivity of these structures is for the first time reviewed in this paper. This allows the development of the reduced stiffness buckling analytical concept for the lattice shells based upon the...

This paper presents the application of micro/macromechanics models and optimization techniques for the optimum design of pultruded glass fiberreinforced plastic composite I-beams with respect to material architecture: fiber orientations and fiber percentages. The beams are subjected to transverse loading, and beam deflection, buckling resistance and material failure are considered as multiple o...

A thin elastic rod embedded in an elastic medium buckles into an exponentially decaying short wavelength profile under compressive loading beyond a critical value. In this study, we report a combined experimental and theoretical investigation of the buckling profile of a thin elastic rod embedded in an elastic gelatin biopolymer network when fracture of the network happens. Prior models have pr...

Buckling restrained braced frames (BRBFs) for seismic load resistance have been widely used in recent years. One of the key requirements for a buckling restrained brace is to sustain large plastic deformations under severe ground motions. The core of a buckling restrained brace is prone to fatigue fracture under cyclic loading. The earthquake induced fracture type of the core plate in a bucklin...

This paper (SPE 173892) was revised for publication from paper OTC 25335, first presented at the Offshore Technology Conference, Houston, 5–8 May 2014. Original manuscript received for review 20 June 2014. Revised manuscript received for review 27 October 2014. Paper peer approved 4 November 2014. Summary Steel catenary risers (SCRs) on a large-heave-motion vessel are susceptible to compression...