Wim de Waele

Pós-doutorado

Idiomas

Áreas de atuação

Produções bibliográficas

• HERTELÉ, STIJN ; DE WAELE, WIM ; DENYS, RUDI ; VERSTRAETE, MATTHIAS . Full-range stress-strain behaviour of contemporary pipeline steels: Part I. Model description. International Journal of Pressure Vessels and Piping , v. 92, p. 34-40, 2012.

• HERTELÉ, STIJN ; DE WAELE, WIM ; DENYS, RUDI ; VERSTRAETE, MATTHIAS ; VAN WITTENBERGHE, JEROEN . Parametric finite element model for large scale tension tests on flawed pipeline girth welds. Advances in Engineering Software (1992) , v. 47, p. 24-34, 2012.

• HERTELÉ, STIJN ; DE WAELE, WIM ; DENYS, RUDI ; VERSTRAETE, MATTHIAS . Full-range stress-strain behaviour of contemporary pipeline steels: Part II. Estimation of model parameters. International Journal of Pressure Vessels and Piping , v. 92, p. 27-33, 2012.

• HERTELE, S. ; DE WAELE, W. ; DENYS, R. ; VERSTRAETE, M. . Investigation of strain measurements in (curved) wide plate specimens using digital image correlation and finite element analysis. Journal of Strain Analysis for Engineering Design , v. 47, p. 276-288, 2012.

Projetos de pesquisa

• 2012 - Atual

  Influences of constitutive material properties on strain capacity of flawed pipeline girth welds, Descrição: Postdoctoral research: Study effects of constitutive properties on strain capacity of flawed girth welds Focus on influences of material heterogeneity and anisotropy.. , Situação: Em andamento; Natureza: Pesquisa. , Alunos envolvidos: Doutorado: (1) . , Integrantes: Wim de Waele - Coordenador / Stijn Hertelé - Integrante.

• 2012 - Atual

  Ductile tearing assessment in strain-based design of pipelines, Descrição: Targets: Understanding of the strain hardening (double n) behaviour by correlating microstructural entities with stress-strain properties; Understanding of ductile tearing behavior (R-curve) in order to estimate strain capacity.. , Situação: Em andamento; Natureza: Pesquisa. , Alunos envolvidos: Doutorado: (1) . , Integrantes: Wim de Waele - Coordenador / Diego Belato Rosado - Integrante.

• 2011 - Atual

  Strain Based Design Requirements for Spiral Welded Pipes, Descrição: This project aims to investigate the suitability of high strength spiral welded pipelines for strain based design projects considering a coupled numerical-experimental approach. The experimental research focuses on the structural response of medium curved wide plate sections containing the helical weld when loaded in tension. The numerical research consist of finite element analysis of the same curved wide plate tension test. Using this model, various influences of different parameters can be investigated. For example: - flaw dimension, - (anisotropic) material response and geometrical properties.. , Situação: Em andamento; Natureza: Pesquisa. , Alunos envolvidos: Doutorado: (1) . , Integrantes: Wim de Waele - Coordenador / Koen Van Minnebruggen - Integrante.

• 2010 - Atual

  High performance threaded couplings for casing and tubing, Descrição: Threaded pipe connections are widely used in the oil and gas industry for well completion, drill strings and risers in offshore applications. The use of threaded connections is often preferred over welded connections because of their quick assembly and possibility to disassemble and reuse when required. With the current consumption of oil peaking at almost 90 million barrels a day, new reserves have to be accessed to satisfy this increasing demand. In order to reach these new oilfields, additional challenges have to be overcome due to the occurring conditions. These conditions include: axial loads due to the increased lengths of the strings used, additional internal pressure, external pressure and temperature as a result of the deeper wells and bending forces when drilling the more complex deviated wells. In order to assure a mechanical efficient and leak tight connection between two pipes, the use of premium connections is often preferred. Having a joint strength equal to the pipe body strength of the connected pipes is possible when the Threaded & Coupled type connections are being used. However, this implies a local increase of outer diameter of the string which results in an increased probability of getting stuck downhole. This project aims to reduce the outer diameter by identifying the influence of the different geometric parameters on the performance of the connection under the aforementioned loads. . , Situação: Em andamento; Natureza: Pesquisa. , Alunos envolvidos: Doutorado: (1) . , Integrantes: Wim de Waele - Coordenador / Timothy Galle - Integrante.

• 2009 - 2013

  Anisotropy and hardening for sheet metal forming applications (computational plasticity), Descrição: Sheet metals generally exhibit a considerable anisotropy due to their crystallographic texture. This anisotropy has a great influence on the formability and shape of the specimen during and after the deformation. Sheet metal deformation processes are challenged due to difficulties such as wrinkling, earing and failure that are tightly connected to the anisotropy and hardening of the material. In this research, which is situated in the framework of computational plasticity, we deal with the development of constitutive models for Finite Element (FE) software to simulate complicated anisotropy and hardening of sheet metals. Several models were developed and introduced into the commercial FE software Abaqus as User Material subroutines (UMAT & VUMAT ). This enables us to simulate the variety of deformation processes and to have a precise knowledge of material behavior during the deformation and of course the final shape of the specimens. One of the goals has been modeling the yield surface of different highly anisotropic metals. To this end, the constitutive law has to be able of modeling a complex 3 or 6 dimensional surface. If the model can do so, consequently much more accurate simulation results should be obtained.. , Situação: Concluído; Natureza: Pesquisa. , Alunos envolvidos: Doutorado: (1) . , Integrantes: Wim de Waele - Coordenador / Mohsen Safaei - Integrante.

• 2009 - Atual

  Strain based design of pressurized pipes, Descrição: Influence of internal pressure on pipeline tensile strain capacity. Measurement of ductile crack extension in small and large scale specimens. Methods : ‣ Experiments (SENT and CWP testing) ‣ Finite Element Simulations (Constraint evaluation and Tensile Strain Capacity). , Situação: Em andamento; Natureza: Pesquisa. , Alunos envolvidos: Doutorado: (1) . , Integrantes: Wim de Waele - Coordenador / Matthias Verstraete - Integrante.