[{"language":[{"iso":"eng"}],"year":2019,"main_file_link":[{"url":"https://ediss.sub.uni-hamburg.de/handle/ediss/8756 ","open_access":"1"}],"publication_status":"published","keyword":["density measurement","radiation transmission","porous low-Z composite material","true density","elemental composition and ash content","effective atomic number","mass attenuation coefficient","X-ray energy spectrum","law of attenuation","beam hardening and radiation build-up","radiation-physical interdependencies","Dichtemessung","Durchstrahlung","poröser Verbundwerkstoff","Reindichte","elementare Zusammensetzung und Aschegehalt","effektive Ordnungszahl","Massenschwächungskoeffizient","Röntgenspektrum","Schwächungsgesetz","Strahlaufhärtung und Strahlungsaufbau","strahlungsphysikalische Wechselbeziehungen"],"author":[{"first_name":"Konrad","full_name":"Solbrig, Konrad","id":"59789","last_name":"Solbrig"}],"date_created":"2021-02-09T09:31:41Z","ddc":["660"],"abstract":[{"text":"AbstractThe industrial production ofwood-based compo-sites (WBCs) features the core processes in theforming and press line,which are characterisedby densification and the curing of resin-blended furnish materialto obtain a panel from a formed mat in a continuous or batch-wise process.Here, the reliable measurement of process parameters and panel properties is indispensablefor moni-toring and controllingproductionand quality.The in-plane area density(𝜌A)of the mat and the raw density(𝜌)of the panel,along withits vertical rawdensity  profile  (RDP),aretypically determined through nondestructivemeans of radiometric de-vices.X-ray  systems  for  density  measurement on  WBCsare commonly  usedin both industry and research. Theyfollow a similar basic princi-pleof radiation transmissionwith specificsetups depending  onthe  measuring  taskat  hand.  De-tector  signalsare  evaluated  regarding relative radiation  transmission,  which  is  well-knownto followBeer’s  law  of  exponential  attenuation.Note here, particular conditions regarding radia-tion  (energyand  beam  geometry)  and  material properties  (consistent  and  homogeneous)  are expected. These conditions, however, cannot be consistently  achieved  in  applied  radiometric  in-vestigationson  WBCs [...]","lang":"eng"},{"lang":"ger","text":"AbstractXVIIprovided by the present thesis. The practicalim-plementation,  however,must  consequentlybe performed by the device manufactures. The us-ers of such modern X-raysystems are enabledto obtain enhanced quality of their measuring re-sults,  which  is  relevant  for  both  WBC science(wide  range  of  partly  new  composites)  and  in-dustry (increasing requirements on reliability and accuracy).Eventually,  the properapplication  of capable  nondestructive  evaluation  methods  by valid  and  precise  measuring  systems  for moni-toring and controllingquality and processparam-etersin WBC production offersthe possibility ofachievingsavings  in  raw  materials  and  energy consumption   as    well    as   fundamental   ap-proaches forimprovingWBC production, thus,to optimise  processconditionsand  materialprop-ertiesin general.\r\nKurzfassungDie  industrielle  Produktion  von plattenförmigen Holzwerkstoffen  (HWS) wirdmaßgeblich durchdie  Kernprozessein der Form-und Pressen-straßebestimmt. Die Plattenherstellung ist durch die Verdichtung und Aushärtung von geformten Mattenaus beleimtenHolzpartikelngekenn-zeichnet, was in  kontinuierlichen  oder  taktwei-sen Prozessenerfolgt. Dabei ist diezuverlässige Messung von Prozessparametern und Plattenei-genschaften  fürdieÜberwachung  und  Steue-rung  von  Produktion  und  Qualitätunabdingbar. Die Bestimmung des Flächengewichts(Flächen-dichte 𝜌A)der  Matte  und  der  Rohdichte(𝜌)der Platte   sowie   des vertikalen   Rohdichteprofils (RDP) erfolgt für gewöhnlich zerstörungsfrei mit-tels  radiometrischer  Geräte. Heute  sind sowohl in der Industrie als auch in der Forschung Rönt-gensysteme zur Dichtemessung (Densitometrie) an  Holz  und  Holzwerkstoffen verbreitet.  Deren Grundprinzip zur Durchstrahlung ist ähnlich, wo-hingegen sich der jeweilige Aufbau in Abhängig-keit der Messaufgabeund auch in Bezug auf den Geräteherstellerunterscheidet. Die aus den ge-messenen  Detektorsignalen  ausgewertete  rela-tive  Durchstrahlung kann  durch  das  hinlänglich bekannte Beer’scheGesetzfür die exponentielle Schwächungbeschrieben werden. Die Gültigkeit setzt   bestimmte   Bedingungen   in   Bezug   auf Strahlung  (Energie  und  Strahlgeometrie)  und Materialeigenschaften   (konsistentund   homo-gen)  voraus,  die  bei radiometrischen Untersu-chungen an HWSin der allgemeinen Praxis je-doch  nicht angemessen  erfüllt  werden  können [...]"}],"oa":"1","date_updated":"2023-03-15T13:49:56Z","publisher":"Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky ","alternative_title":["Angewandte Untersuchungen an Holzwerkstoffen im Zusammenhang mit der Dichtemessung mittels Röntgenstrahlung"],"urn":"urn:nbn:de:gbv:18-ediss-89270","place":"Hamburg ","user_id":"68554","status":"public","page":"453","title":"Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry","citation":{"chicago-de":"Solbrig, Konrad. 2019. <i>Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry</i>. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky .","chicago":"Solbrig, Konrad. <i>Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry</i>. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , 2019.","bjps":"<b>Solbrig K</b> (2019) <i>Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry</i>. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky .","din1505-2-1":"<span style=\"font-variant:small-caps;\">Solbrig, Konrad</span>: <i>Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry</i>. Hamburg  : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , 2019","havard":"K. Solbrig, Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry, Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , Hamburg , 2019.","van":"Solbrig K. Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky ; 2019. 453 p.","ama":"Solbrig K. <i>Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry</i>. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky ; 2019.","ieee":"K. Solbrig, <i>Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry</i>. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , 2019.","apa":"Solbrig, K. (2019). <i>Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry</i>. Hamburg : Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky .","mla":"Solbrig, Konrad. <i>Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry</i>. Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , 2019.","ufg":"<b>Solbrig, Konrad (2019)</b>: Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry, Hamburg .","short":"K. Solbrig, Applied Investigations on Wood-Based Composites in the Context of X-Ray Densitometry, Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky , Hamburg , 2019."},"_id":"4919","type":"dissertation","supervisor":[{"last_name":"Ressel","full_name":"Ressel, Jörg","first_name":"Jörg"},{"first_name":"Heiko","full_name":"Thömen, Heiko","last_name":"Thömen"}]},{"author":[{"full_name":"Simoni, F.","first_name":"F.","last_name":"Simoni"},{"id":"43559","full_name":"Huxol, Andrea","first_name":"Andrea","last_name":"Huxol"},{"last_name":"Villmer","full_name":"Villmer, Franz-Josef","id":"14290","first_name":"Franz-Josef"}],"date_created":"2019-02-13T14:11:15Z","keyword":["Additive manufacturing","Process parameters","Design of Experiments","Density measurement"],"publication_status":"published","year":2018,"main_file_link":[{"open_access":"1","url":"https://www.hs-owl.de/fileadmin/diman/Veroeffentlichungen/PEM2018_proceedings_web.pdf"}],"language":[{"iso":"eng"}],"publication":"Production Engineering and Management","date_updated":"2023-03-15T13:50:00Z","oa":"1","publication_identifier":{"isbn":["978-3-946856-03-0"]},"abstract":[{"text":"Since additive manufacturing (AM) is continuously growing, the influence of processing conditions and setup parameters on microstructural and mechanical properties of additively manufacturedcomponents needs to be clarified. The paper discusses an experimental approach for the identification of influencing parameters in Selective Laser Melting; this consists of an evaluation of the mechanical and physical properties of final parts, depending on the chosen process parameters. The Design of Experiments is used to get valid results from a limited number of experiments. The research work focuses on the application of a Definitive Screening Design to identify the most important influencing parameters: Several parameters of the hatch and the contour exposure are varied, as well as the position and orientation of the samples in the build chamber. A maraging steel and a CoCr alloy are used, and the mechanical and physical properties of the samples are evaluated. The interdependencies between the variation of the factors and the observed properties are analyzed.","lang":"eng"}],"conference":{"end_date":"2018-10-05","start_date":"2018-10-04","name":"Proceedings 8th International Conference","location":"Lemgo"},"issue":"1","title":"Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts","citation":{"din1505-2-1":"<span style=\"font-variant:small-caps;\">Simoni, F.</span> ; <span style=\"font-variant:small-caps;\">Huxol, Andrea</span> ; <span style=\"font-variant:small-caps;\">Villmer, Franz-Josef</span>: Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In: <span style=\"font-variant:small-caps;\">Villmer, F.-J.</span> ; <span style=\"font-variant:small-caps;\">Padoano, E.</span> ; <span style=\"font-variant:small-caps;\">Department of Production Engineering and Management</span> (Hrsg.): <i>Production Engineering and Management</i>. Lemgo, 2018, S. 43–55","van":"Simoni F, Huxol A, Villmer F-J. Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In: Villmer F-J, Padoano E, Department of Production Engineering and Management, editors. Production Engineering and Management. Lemgo; 2018. p. 43–55.","havard":"F. Simoni, A. Huxol, F.-J. Villmer, Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts, in: F.-J. Villmer, E. Padoano, Department of Production Engineering and Management (Eds.), Production Engineering and Management, Lemgo, 2018: pp. 43–55.","chicago":"Simoni, F., Andrea Huxol, and Franz-Josef Villmer. “Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts.” In <i>Production Engineering and Management</i>, edited by Franz-Josef Villmer, Elio Padoano, and Department of Production Engineering and Management, 43–55. Lemgo, 2018.","chicago-de":"Simoni, F., Andrea Huxol und Franz-Josef Villmer. 2018. Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In: <i>Production Engineering and Management</i>, hg. von Franz-Josef Villmer, Elio Padoano, und Department of Production Engineering and Management, 43–55. Lemgo.","bjps":"<b>Simoni F, Huxol A and Villmer F-J</b> (2018) Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In Villmer F-J, Padoano E and Department of Production Engineering and Management (eds), <i>Production Engineering and Management</i>. Lemgo, pp. 43–55.","mla":"Simoni, F., et al. “Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts.” <i>Production Engineering and Management</i>, edited by Franz-Josef Villmer et al., no. 1, 2018, pp. 43–55.","ufg":"<b>Simoni, F. et. al. (2018)</b>: Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts, in: Franz-Josef Villmer et. al. (Hgg.): <i>Production Engineering and Management</i>, Lemgo, S. 43–55.","short":"F. Simoni, A. Huxol, F.-J. Villmer, in: F.-J. Villmer, E. Padoano, Department of Production Engineering and Management (Eds.), Production Engineering and Management, Lemgo, 2018, pp. 43–55.","ama":"Simoni F, Huxol A, Villmer F-J. Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In: Villmer F-J, Padoano E, Department of Production Engineering and Management, eds. <i>Production Engineering and Management</i>. Lemgo; 2018:43-55.","apa":"Simoni, F., Huxol, A., &#38; Villmer, F.-J. (2018). Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts. In F.-J. Villmer, E. Padoano, &#38; Department of Production Engineering and Management (Eds.), <i>Production Engineering and Management</i> (pp. 43–55). Lemgo.","ieee":"F. Simoni, A. Huxol, and F.-J. Villmer, “Analysis of Influencing Parameters on Mechanical and Physical Properties of SLM Parts,” in <i>Production Engineering and Management</i>, Lemgo, 2018, no. 1, pp. 43–55."},"editor":[{"full_name":"Villmer, Franz-Josef","first_name":"Franz-Josef","last_name":"Villmer"},{"full_name":"Padoano, Elio","first_name":"Elio","last_name":"Padoano"}],"status":"public","page":"43-55","department":[{"_id":"DEP1306"}],"user_id":"45673","place":"Lemgo","corporate_editor":["Department of Production Engineering and Management","Hochschule Ostwestfalen-Lippe"],"_id":"552","type":"conference"}]