{"product_id":"numerical-simulation-and-experimental-investigation-of-the-fracture-behaviour-of-an-electron-beam-welded-steel-joint","title":"Numerical Simulation and Experimental Investigation of the Fracture Behaviour of an Electron Beam Welded Steel Joint","description":"\u003cp\u003eIn this thesis, the author investigates experimentally and numerically\u003c\/p\u003e\u003cp\u003ethe fracture behavior of an electron beam welded joint made from\u003c\/p\u003e\u003cp\u003etwo butt S355 plates. The 2D Rousselier model, the Gurson-Tvergaard-\u003c\/p\u003e\u003cp\u003eNeedleman (GTN) model and the cohesive zone model (CZM) were\u003c\/p\u003e\u003cp\u003eadopted to predict the crack propagation of thick compact tension (CT)\u003c\/p\u003e\u003cp\u003especimens. Advantages and disadvantages of the three mentioned models\u003c\/p\u003e\u003cp\u003eare discussed. The cohesive zone model is suggested as it is easy to use\u003c\/p\u003e\u003cp\u003efor scientists \u0026amp; engineers because the CZM has less model parameters\u003c\/p\u003e\u003cp\u003eand can be used to simulate arbitrary crack propagation. The results\u003c\/p\u003e\u003cp\u003eshown in this thesis help to evaluate the fracture behavior of a metallic\u003c\/p\u003e\u003cp\u003ematerial. A 3D optical deformation measurement system (ARAMIS) andthe synchrotron radiation-computed laminography (SRCL) technique\u003c\/p\u003e\u003cp\u003ereveal for the first time the damage evolution on the surfaceof the sample\u003c\/p\u003e\u003cp\u003eand inside a thin sheet specimen obtained from steel S355. Damage\u003c\/p\u003e\u003cp\u003eevolution by void initiation, growth and coalescence are visualized in\u003c\/p\u003e\u003cp\u003e2D and 3D laminographic images. Two fracture types, i.e., a flat crack\u003c\/p\u003e\u003cp\u003epropagation originated from void initiation, growth and coalescence\u003c\/p\u003e\u003cp\u003eand a shear coalescence mechanism are visualized in 2D and 3D images\u003c\/p\u003e\u003cp\u003eof laminographic data, showing the complexity of real fracture. In\u003c\/p\u003e\u003cp\u003ethe dissertation, the 3D Rousselier model is applied for the first time\u003c\/p\u003e\u003cp\u003esuccessfully to predict different microcrack shapes before shear cracks\u003c\/p\u003e\u003cp\u003earise by defining the finite elements in front of the initial notch with\u003c\/p\u003e\u003cp\u003einhomogeneous f0-values. The influence of the distribution of inclusions\u003c\/p\u003e\u003cp\u003eon the fracture shape is also discussed. For the analyzed material, a\u003c\/p\u003e\u003cp\u003ehomogeneous distribution of particles in the material provides the\u003c\/p\u003e\u003cp\u003ehighest resistance to fracture.\u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e","brand":"None","offers":[{"title":"Paperback","offer_id":46189963051185,"sku":"9783319884059","price":160.95,"currency_code":"CAD","in_stock":false},{"title":"Hardcover","offer_id":46189963083953,"sku":"9783319672762","price":160.95,"currency_code":"CAD","in_stock":true},{"title":"Kobo eBook","offer_id":46189963116721,"sku":"0c124fd8-1515-37e3-a7f9-d7a9748b6443","price":116.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0655\/8980\/5233\/files\/1_4c9d8023-2a9a-406e-9d60-b86cb255d44e.jpg?v=1763678193","url":"https:\/\/www.indigo.ca\/products\/numerical-simulation-and-experimental-investigation-of-the-fracture-behaviour-of-an-electron-beam-welded-steel-joint","provider":"Indigo","version":"1.0","type":"link"}