Rib-reinforced Shell Structure

Rib-reinforced Shell Structure

Shell structures are extensively used in engineering due to their efficient load-carrying capacity relative to material volume. However, large-span shells require additional supporting structures to strengthen fragile regions. The problem of designing optimal stiffeners is therefore becoming a major challenge for shell applications. To address it, we propose a computational framework to design ...

Bearing capacity of shell strip footing on reinforced sand

In this paper, the ultimate load capacities of shell foundations on unreinforced and reinforced sand were determined by laboratory model tests. A series of loading tests were carried out on model shell footing with and without single layer of reinforcement. The tests were done for shell foundation at different shell embedment depth and subgrade density. The results were compared with those for ...

Physical Structure of Shell Membranes

The results obtained in the present work bring out clearly that the dried shell membrane is an open lattice-like network containing micropores of the order of 1 micron in mean equivalent diameter and whose surface density is roughly 20 millions per sq. cm. The gas transfer through this network is largely by viscous flow and accordingly does not obey Graham's law of diffusion. The data make clea...

Cu cluster shell structure at elevated temperatures.

Clusters and Shell-Structure in Light Nuclei

Thomas Neff, Hans Feldmeier and Robert Roth Gesellschaft für Schwerionenforschung mbH, Planckstraße 1, 64291 Darmstadt, Germany †Institut für Kernphysik, TU Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany Abstract. Light nuclei in the p-shell are studied in the Fermionic Molecular Dynamics model. No a priori assumptions are made with respect to cluster structure or single-particle en...