Kling, Alexander

[["dc.bibliographiccitation.firstpage","29"],["dc.bibliographiccitation.journal","Thin-Walled Structures"],["dc.bibliographiccitation.lastpage","38"],["dc.bibliographiccitation.volume","81"],["dc.contributor.author","Degenhardt, Richard"],["dc.contributor.author","Castro, Saullo G. P."],["dc.contributor.author","Arbelo, Mariano A."],["dc.contributor.author","Zimmerman, Rolf"],["dc.contributor.author","Khakimova, Regina"],["dc.contributor.author","Kling, Alexander"],["dc.date.accessioned","2018-11-07T09:37:28Z"],["dc.date.available","2018-11-07T09:37:28Z"],["dc.date.issued","2014"],["dc.description.abstract","Space and aircraft industry demands for reduced development and operating costs. Structural weight reduction by exploitation of structural reserves in composite space and aerospace structures contributes to this aim, however, it requires accurate and experimentally validated stability analysis. Currently, the potential of composite light weight structures, which are prone to buckling, is not fully exploited as appropriate guidelines in the field of aerospace and space applications do not exist. This paper deals with the state-of-the-art advances and challenges related to coupled stability analysis of composite structures which show very complex stability behaviour. Two types of thin-walled light weight structures endangered by buckling will be considered; imperfection tolerant and imperfection sensitive structures. For both groups improved design guidelines for composites structures are still under development. This paper gives a short state-of-the-art and presents proposals for future design guidelines. (c) 2014 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.tws.2014.02.020"],["dc.identifier.isi","000336953800004"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32849"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.issn","1879-3223"],["dc.relation.issn","0263-8231"],["dc.title","Future structural stability design for composite space and airframe structures"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1939"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Composite Structures"],["dc.bibliographiccitation.lastpage","1946"],["dc.bibliographiccitation.volume","92"],["dc.contributor.author","Degenhardt, Richard"],["dc.contributor.author","Kling, Alexander"],["dc.contributor.author","Bethge, Arne"],["dc.contributor.author","Orf, Jana"],["dc.contributor.author","Kaerger, Luise"],["dc.contributor.author","Zimmermann, Rolf"],["dc.contributor.author","Rohwer, Klaus"],["dc.contributor.author","Calvi, Adriano"],["dc.date.accessioned","2018-11-07T08:41:34Z"],["dc.date.available","2018-11-07T08:41:34Z"],["dc.date.issued","2010"],["dc.description.abstract","In the field of aerospace engineering but also in the fields of civil and mechanical engineering the industry demands for significantly reduced costs for development and operating. Reduction of structural weight at safe design is one avenue to achieve this objective. In many cases it results in thin-walled structures, which are prone to buckling if subjected to compression or shear. The presented paper is based on a recent European Space Agency (ESA) study, conducted at DLR Braunschweig, on Probabilistic Aspects of Buckling Knock-Down Factors and contributes to this goal by striving for an improved buckling knockdown factor (the ratio of buckling loads of imperfect and perfect structures) for unstiffened CFRP cylindrical shells. Buckling tests and buckling simulations were performed to investigate the imperfection sensitivity and to validate the applied simulation methodologies. Test results as well as deterministic and probabilistic buckling simulation results are presented and compared. Finally, improved knock-down factors are deduced and discussed. (C) 2009 Elsevier Ltd. All rights reserved."],["dc.description.sponsorship","European Space Agency (ESA)"],["dc.identifier.doi","10.1016/j.compstruct.2009.12.014"],["dc.identifier.isi","000276752300019"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19501"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Elsevier Sci Ltd"],["dc.relation.issn","0263-8223"],["dc.title","Investigations on imperfection sensitivity and deduction of improved knock-down factors for unstiffened CFRP cylindrical shells"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","14677"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Scientific Reports"],["dc.bibliographiccitation.volume","7"],["dc.contributor.author","Brockmeyer, Phillipp"],["dc.contributor.author","Kling, Alexander"],["dc.contributor.author","Schulz, Xenia"],["dc.contributor.author","Perske, Christina"],["dc.contributor.author","Schliephake, Henning"],["dc.contributor.author","Hemmerlein, Bernhard"],["dc.date.accessioned","2018-06-25T07:26:32Z"],["dc.date.available","2018-06-25T07:26:32Z"],["dc.date.issued","2017"],["dc.description.abstract","This study evaluates the effects of tumour-associated mast cells on the prognosis of patients suffering from oral squamous cell carcinoma (OSCC). Tryptase-positive (MCT+) and CD117-positive (CD117+) mast cells were immunohistochemically evaluated in tissue samples of 118 OSCC patients. Besides, various clinicopathological parameters, the influence of the MCT+ and CD117+ mast cell density on overall survival and the incidence of first local recurrence was analysed by Cox regression and competing risk regression. Among all investigated parameters, multiple Cox regression revealed a significant influence of the MCT+ (cut-off at 14.87 mast cells/mm2 stroma; p = 0.0027) and CD117+ mast cell density (cut-off at 33.19 mast cells/mm2 stroma; p = 0.004), the age at primary diagnosis, and the T and N stage (all p-values < 0.05) on overall survival. Patients with a low mast cell density showed a significantly poorer overall survival rate compared to those with a high mast cell density in the tumour-associated stroma. Competing risk regression revealed a significant influence of the resection status (R) on the incidence of first local recurrence (p = 0.0023). A high mast cell density in the tumour-associated stroma of oral squamous cell carcinoma indicates a longer patient survival."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2017"],["dc.identifier.doi","10.1038/s41598-017-15406-5"],["dc.identifier.pmid","29116177"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14831"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15131"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.relation.eissn","2045-2322"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","High mast cell density indicates a longer overall survival in oral squamous cell carcinoma"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]