TY - JOUR A1 - Sonsino, C.M. A1 - Kaufmann, H. A1 - Masendorf, R. A1 - Hatscher, A. A1 - Zenner, H. A1 - Bork, Claus-Peter A1 - Hinterdorfer, J. A1 - Sonne, H.M. A1 - Engl, B. A1 - Steinbeck, G. T1 - Werkstoffkennwerte für die Lebensdauerberechnung von Strukturen aus Stahlfeinblechen für den Automobilbau N2 - Im Rahmen eines gemeinschaftlichen Projektes der Stahl- und Automobilindustrie wurden für 17 Stahlfeinbleche des Automobilbaus in verschiedenen Anlieferungs- und Verformungszuständen unter -40°C, Raumtemperatur und +100°C mit 37 Versuchsreihen Anrisswöhlerlinien und zügige bzw. zyklische Spannung-Dehnung-Kurven bestimmt. Sämtliche Versuchspunkte, Hysteresen und ermittelte zyklische Kennwerte liegen in einer Datenbank vor. Eine Korrelationen zwischen den Kennwerten aus dem Zugversuch und den Kennwerten aus den zyklischen, dehnungsgeregelten Versuchen ist grundsätzlich möglich. KW - Zyklische Werkstoffkennwerte KW - Zügige und zyklische Spannung-Dehnung-Kurve KW - Dehnungswöhlerlinie KW - Technischer Anriss KW - Elasto-plastisches Werkstoffverhalten KW - Automobilbau KW - Cyclic properties KW - Monotonic and cyclic stress-strain curve KW - Strain-life curve KW - Technical crack KW - Elasto-plastic material behaviour KW - Thin steel sheets KW - Automotive engineering KW - Karosseriestähle KW - Strukturen KW - Lebensdauerberechnung KW - Zyklische Kennwerte PY - 2004 DO - https://doi.org/10.1002/mawe.200400769 SN - 0933-5137 SN - 1521-4052 VL - 35 IS - 8 SP - 522 EP - 533 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-22436 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Bleck, W. A1 - Bork, Claus-Peter A1 - Engl, B. A1 - Evertz, Th. A1 - Frehn, A. A1 - Hatscher, A. A1 - Hinterdorfer, J. A1 - Kaufmann, H. A1 - Masendorf, R. A1 - Nicklas, D. A1 - Sonne, H.-M. A1 - Sonsino, C.M. A1 - Steinbeck, G. A1 - Zenner, H. T1 - Ermittlung von Berechnungskennwerten für Karosseriestähle KW - Feinblech KW - Kennwerte KW - FEM-Simulation KW - Automobilindustrie PY - 2004 SN - 0340-4803 SN - 0340-479x VL - 124 IS - 11 SP - 137 EP - 140 PB - Verl. Stahleisen CY - Düsseldorf AN - OPUS4-5834 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maultzsch, Matthias A1 - Gierloff, M. A1 - Schimmelwitz, Peter T1 - Aging of cement through long term storage T2 - 7th International Congress on the Chemistry of Cement ; 7ère Congrès International de la Chimie des Ciments CY - Paris, France DA - 1980-01-01 PY - 1980 VL - 2 SP - I-128-I-133 PB - Ed. Septima CY - Paris AN - OPUS4-6917 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Paulus, G. A1 - Resch, M. A1 - Krüger, Ralph-Peter T1 - Molmassen-Bestimmung mittels MALDI-MS PY - 1994 SN - 0341-5163 SN - 1521-3854 VL - 42 SP - 719 EP - 722 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-2138 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Veith, M. A1 - Elsässer, R. A1 - Krüger, Ralph-Peter T1 - Synthesis of Dendrimers with a N-Si-C Framework N2 - A novel family of air-stable dendrimers with a N-Si-C framework has been prepared up to the fourth generation. The divergent synthesis starts with the hydrosilylation of the trisilazane N(SiMe2vinyl)3 [0-G(vinyl)] by HSiMe2Cl, which gives the three-directional core molecule N(SiMe2CH2CH2SiMe2Cl)3 [0-G(Cl)]. A 1-to-2 branching achieved by reacting the core molecule [0-G(Cl)] with 3 equiv of KN(SiMe2vinyl)2 affords the first generation dendrimer [1-G(vinyl)]. By repeating the above two steps, the second [2-G(vinyl)], third [3-G(vinyl)], and fourth generation [4-G(vinyl)] can be obtained. The compounds have been characterized by 1H, 13C, and 29Si NMR spectroscopy, by elemental analysis, and up to the third generation by MALDI-TOF mass spectrometry. Gel permeation chromatography was used to prove the fourth generation [4-G(vinyl)]. PY - 1999 DO - https://doi.org/10.1021/om9807708 SN - 0276-7333 SN - 1520-6041 VL - 18 IS - 4 SP - 656 EP - 661 PB - American Chemical Society CY - Washington, DC AN - OPUS4-2162 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Reinhardt, M. A1 - Krüger, Ralph-Peter A1 - v. Lampe, I. A1 - Lorkowski, H.-J. T1 - Über Lösekinetik und Acidität einiger phenolischer Polymere T2 - 5. Berliner Polymertage 1994 CY - Potsdam DA - 1994-10-05 PY - 1994 CY - Potsdam AN - OPUS4-2199 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Krüger, Ralph-Peter A1 - Much, Helmut A1 - Paulus, G. A1 - Resch, M. A1 - Schulz, Günter ED - Darms, R. ED - Suter, U. T1 - Polymer Characterization by MALDI-TOF-MS and Combination with HPLC T2 - 5th European Polymer Federation Symposium on Polymeric Materials (EPF) CY - Basel, Switzerland DA - 1994-10-09 PY - 1994 SN - 3-85739-297-5 SN - 0258-0322 VL - 5 PB - Hüthig & Wepf CY - Zug AN - OPUS4-2200 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Thomé-Kozmiensky, K. J. A1 - Löschau, M. A1 - Kley, Gerd A1 - Köcher, Peter A1 - Thiel, S. T1 - Entsorgung von Sekundärabfällen aus der Abfallverbrennung T2 - Abfallwirtschaft für Wien CY - Wien, Österreich DA - 2004-06-24 KW - Abfallverbrennung KW - Schlacke KW - Filterstaub KW - Verwertung KW - Schmelzen KW - Technische Silikate KW - Verfahrenstechnik KW - Verfahrensübersicht PY - 2004 SN - 3-935317-17-4 SP - 497 EP - 742 PB - TK-Verl. CY - Neuruppin AN - OPUS4-3683 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Shaik, A.-A. A1 - Richter, M. A1 - Kricheldorf, H. A1 - Krüger, Ralph-Peter T1 - New polymer syntheses - CIX. Biodegradable, alternating copolyesters of terephthalic acid, aliphatic dicarboxylic acids, and alkane diols N2 - Copolyesters with an alternating sequence of terephthalic acid and aliphatic dicarboxylic acids were prepared with three different methods. First, dicarboxylic acid dichlorides were reacted with bis(2-hydroxyethyl)terephthalate (BHET) in refluxing 1,2-dichlorobenzene. Second, the same monomers were polycondensed at 0-20 °C in the presence of pyridine. Third, dicarboxylic acid dichlorides and silylated BHET were polycondensed in bulk. Only this third method gave satisfactory molecular weights. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry revealed that the copolyesters prepared by the pyridine and silyl methods might have contained considerable fractions of cyclic oligoesters and polyesters despite the absence of transesterification and backbiting processes. The alternating sequences and thermal properties were characterized with 1H NMR spectroscopy and differential scanning calorimetry measurements, respectively. In agreement with the alternating sequence, all copolyesters proved to be crystalline, but the crystallization was extremely slow [slower than that of poly(ethylene terephthalate)]. A second series of alternating copolyesters was prepared by the polycondensation of silylated bis(4-hydroxybut- yl)terephthalate with various aliphatic dicarboxylic acid dichlorides. The resulting copolyesters showed significantly higher rates of crystallization, and the melting temperatures were higher than those of the BHET-based copolyesters. © 2001 John Wiley & Sons, Inc. J Polym Sci Part A: Polym Chem 39: 3371-3382, 2001 KW - Poly(ethylene terephthalate) KW - Poly(butylene terephthalate) KW - Alternating sequence KW - Macrocycles KW - Crystallization KW - Biodegradable polyesters PY - 2001 DO - https://doi.org/10.1002/pola.1320 SN - 0360-6376 SN - 0887-624X VL - 39 IS - 19 SP - 3371 EP - 3382 PB - Wiley CY - Hoboken, NJ AN - OPUS4-2173 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krüger, Ralph-Peter A1 - Much, Helmut A1 - Pickard, M. A1 - Schulz, Günter A1 - Wachsen, O. T1 - Characterization of thermal and hydrolytic degradation of polylactides by Liquid Chromatography and MALDI-TOF mass spectrometry T2 - International Symposium on "Biodegradable Materials" and Hamburger Makromolekulares Symposium CY - Hamburg, Germany DA - 1996-10-07 PY - 1996 CY - Hamburg AN - OPUS4-2225 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -