Thermal analysis of the Wire and Arc Additive Manufacturing process using the F.E. method

In this research, a thermal analysis of the wire and arc additive manufacturing process is presented based on the F.E. method. <br/><br/>An important quality of the F.E. model that is presented in this research is to describe the temperature field that is experienced by the deposited material in the wire and arc additive manufacturing process....

Static strength analysis of a novel custom triflange acetabular component by experimental testing and finite element modelling

Acetabular component revision surgery in people with severe acetabular bone defect is challenging and associated with higher failure rates compared to primary total hip arthroplasty. This MSc Thesis project aimed to assess the static strength of a novel custom triflange acetabular component (CTAC) by experimental testing and finite element (FE)...

Development of a dynamic model of a nautical radar on a mast structure for fatigue damage analysis

Nautical radar systems are subjected to random vibrations during their service life, which may lead to the degradation of the materials and a possible fatigue failure. Assessing the impact of these vibrations to the structural integrity of the radar is crucial for drafting appropriate maintenance plans and therefore, the development of a new...

Transverse load-spread of a voided bridge deck: Comparison between a grillage model and an orthotropic plate model

Orthotropic bridges can be modelled using a grillage model and an orthotropic plate model. The grillage model has some benefits (i.e.: shorter calculation time and easier to apply pre-stressing) compared to the orthotropic plate model. However, during the Blankenburgverbinding project Ballast Nedam experienced that the transverse load-spread of...

Numerical Study of Shear Strengthening of Reinforced Concrete Beams using Strain-Hardening Cementitious Composites

Existing reinforced concrete (RC) structures can be strengthened using Strain Hardening Cementitious Composites (SHCC). The ability of SHCC in exhibiting a ductile response under tensile load due to strain­-hardening after crack initiation makes it a viable material to be used in, both, construction and retrofitting of concrete structures. The...

Improved Constitutive Model for Mesoscale Modelling of Unidirectional Composites

This era of science and technology has seen widespread use of composite materials for a variety of applications ranging from the defense sector to the transport and construction sectors. Composites are mainly comprised of fibres impregnated with a polymeric matrix and have a superior strength to weight ratio as compared to traditional...

Modal analysis of bottom founded offshore wind structures via the creation of a finite element model

One way to implement a wind turbine in the sea is to use lattice structures. Since these structures are placed offshore, they must be able to withstand all kinds of loads. It is essential that the eigenfrequencies of the support structure do not correspond to the passing frequencies of the blades and any other dynamic actions. To avoid this the...

Effective concrete tension zone: Comparison of the effective concrete tension zone between finite element models using DIANA and Eurocode 2 and Jones method

This Master Thesis is about the comparison of the effective concrete tension zone height determined with either finite element models using DIANA or Eurocode 2 and Jones method. The effective reinforcement ratio is an important parameter for the determination of the crack width and is depending on the effective concrete tension zone height....

A finite element model to determine the bactericidal and cytotoxic properties of nanopatterned surfaces: A parametric study

The fundamentals of the nanopatterned surface can be found on the wings of cicada. These bactericidal surfaces are artificially mimicked on the surface of the implant to reduce the infection rate, which is one of the main complication after joint replacement. The bactericidal properties of the nanopatterned surface are a promising feature....

Response of Gravity Based foundation to cyclic loads: Effect of pore pressure on the capacity of the foundation

The development in harvesting trend of wind energy is evidenced as a result of the Paris convention. Therefore, future wind turbines tend to move towards deeper water, which sets a requirement of larger capacity support structure. The design guidelines of Gravity Based Foundation (GBF) which is capable of supporting deeper water wind turbines...