The effect of the yield to tensile strength ratio on stress/strain concentrations around holes in high-strength steels

Application of high-strength steels in the maritime and offshore industry is currently limited by rules governing the ratio of the yield to tensile strength (the Y/T ratio). To better understand the physical basis for these rules, the nature and extent of the plastic stress/strain field in the vicinity of a stress concentration (a circular...

The effect of the yield to tensile strength ratio on the stress field in stress/strain concentrations around holes in steel structures

The aim of this thesis is to determine the influence of the Y/T, yield to tensile strength, ratio on the stress fields of high strength steels. This is relevant to the offshore industry as regulations restrict the use of steels with a high yield to tensile strength ratio, which is a characteristic of high­-strength and<br/>ultra high­-strength...

Development and validation of a quick-scan algorithm for evaluation of rooftop PV potential

A quick-scan algorithm has been developed in order to evaluate rooftop PV potential in the Netherlands. Both its panel fitting and yield prediction functions have been validated with existing systems monitored by Solar Monkey. The calculation times of different parts of the algorithm were measured and decreased while keeping the accuracy of the...

Fatigue Analysis of the Column-Pontoon Connection in a Semi-Submersible Floating Wind Turbine

Motivated by the exciting potential of the new floating offshore wind concepts, this thesis aims to analyze the fatigue behavior of a novel semi-submersible floating offshore wind turbine, developed at CeSOS, NTNU, which consists of four cylindrical columns with one central column supporting the 5 MW NREL wind turbine. The geometry was proposed...

Role of elasticity forces in thermodynamics of intercalation compounds: Self-consistent mean-field theory and Monte Carlo simulations

We propose a self-consistent mean-field lattice-gas theory of intercalation compounds based on effective interactions between interstitials in the presence of the host atoms. In addition to short-range screened Coulomb repulsions, usually discussed in the lattice gas models, the present theory takes into account long-range effective attractions...