Essays about: "LS-Dyna"
Showing result 11 - 15 of 91 essays containing the word LS-Dyna.
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11. Linear Impact of Bicycle Helmet – Experimental Testing and FE-modelling
University essay from KTH/HållfasthetsläraAbstract : The aim with this master thesis was to set up a FE-simulation of an impact test of a bike helmet in LS-DYNA that correlates well with the peak acceleration score of a real life impact test. Furthermore, a parametric study has been performed in LS DYNA to investigate the robustness of the model, as well as to see which parameters have a great influence on the peak acceleration score. READ MORE
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12. Non-Linear strain paths in Sheet Metal Forming
University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknikAbstract : Today's automotive requirements have resulted in complex Sheet Metal Forming (SMF) processes of Sheet Metal (SM) with reduced formability, and thus it is crucial to be able to predict formability accurately to prevent material failure during SMF. Formability predictions today utilize Forming Limit Curves (FLC)s in Finite Element Analysis (FEA), but FLCs are not valid for the Non-Linear Strain Paths (NLSP)s generated during SMF. READ MORE
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13. A bonded discrete element approach to simulate loading with hydraulic mining excavators
University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikAbstract : When operating hydraulic mining excavators the loading equipment is exposed to harsh conditions which lead to extensive wear of the equipment, especially the bucket and bucket teeth. Simulations are used to better understand the wear development and to evaluate new methods to operate excavators more efficiently. READ MORE
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14. Continuum damage modeling of delamination in paperboard
University essay from Lunds universitet/Institutionen för byggvetenskaper; Lunds universitet/HållfasthetsläraAbstract : This work concerns the creasing and folding of a continuum paperboard material model developed by Eric Borgqvist. Creasing is an operation that induces permanent deformation in the material, undertaken for the folding to be performed along a straight fold line without any in-plane cracks. READ MORE
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15. Analysis of wear life and mechanical stability for wear steel
University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikAbstract : This thesis work is carried out in collaboration with Olofsfors AB. They manufacture steel products such as tracks and chains for forest machines and wear steel for plows and graders. The focus of this project is on wear steel. READ MORE