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2017
  • Kashaev, N., Ventzke, V., Horstmann, M., Chupakhin, S., Riekehr, S., Falck, R., Maawad, E., Staron, P., Schell, N., Huber, N.: Effects of laser shock peening on the microstructure and fatigue crack propagation behaviour of thin AA2024 specimens. International Journal of Fatigue 98 (2017) 223-233.
  • Fomin, F., Ventzke, V., Dorn, F., Levichev, N., Kashaev, N.: Effect of Microstructure Transformations on Fatigue Properties of Laser Beam Welded Ti‐6Al‐4V Butt Joints Subjected to Postweld Heat Treatment, Study of Grain Boundary Character, Prof. Tomasz Tański (Ed.), InTech, 2017, DOI: 10.5772/66178.
  • Kashaev, N., Pugachev, D., Ventzke, V., Fomin, F., Burkhardt, I., Enz, J., Riekehr, S.: Microstructure and mechanical performance of autogenously fibre laser beam welded Ti-6242 butt joints. Materials Science and Engineering A 694 (2017) 110-120.
  • Chupakhin, S., Kashaev, N., Klusemann, B., Huber, N.: Artificial neural network for correction of effects of plasticity in equibiaxial residual stress profiles measured by hole drilling. Journal of Strain Analysis for Engineering Design 52(3) (2017) 137-151.
2016
  • Schneider, K., Klusemann, B., Bargmann, S.: Automatic three-dimensional geometry and mesh generation of periodic representative volume elements for matrix-inclusion composites. Advances in Engineering Software 99 (2016) 117-188.
  • Tian, Y., Robson, J. D., Riekehr, S., Kashaev, N., Wang, L., Lowe, T., Karanika, A.: Process optimization of dual-laser beam welding of advanced Al-Li alloys through hot cracking susceptibility modelling. Metallurgical and Materials Transactions A 47A (2016) 3533-3544.
  • Chupakhin, S., Kashaev, N., Huber, N.: Effect of elasto-plastic material behaviour on determination of residual stress profiles using the hole drilling method. Journal of Strain Analysis for Engineering Design 51(8) (2016) 572-581.
  • Alexopoulos, N. D., Gialos, A. A., Zeimpekis, V., Velonaki, Z., Kashaev, N., Riekehr, S., Karanika, A.: Laser beam welded structures for a regional aircraft: weight, cost and carbon footprint savings. Journal of Manufacturing Systems 39 (2016) 38-52.
  • Klusemann, B., Bargmann, S., Estrin, Y.: Fourth-order strain-gradient phase mixture model for nanocrystalline fcc materilas. Modelling and Simulation in Materials Science and Engineering 24 (2016) 085016 (23pp).
  • Kashaev, N., Ventzke, V., Fomichev, V., Fomin, F., Riekehr, S.: Effect of Nd:YAG laser beam welding on weld morphology and mechanical properties of Ti-6Al-4V butt joints and T-joints. Optics and Lasers in Engineering 86 (2016) 172-180.
  • Soyarslan, C., Klusemann, B., Bargmann, S.: The effect of yield surface curvature change by cross hardening on forming limit diagrams of sheets. International Journal of Mechanical Sciences 117 (2016) 53-66.
  • Liu, J., Staron, P., Riekehr, S., Stark, A., Schell, N., Huber, N., Schreyer, A., Müller, M., Kashaev, N.: Phase transformation and residual stress in a laser beam spot-welded TiAl-based alloy. Metallurgical and Materials Transactions A 47A (2016) 5750-5760.
  • Maawad, E., Gan, W., Hofmann, M., Ventzke, V., Riekehr, S., Brokmaier, H.-G., Kashaev, N., Müller, M.: Influence of crystallographic texture on the microstructure, tensile properties and residual stress state of laser-welded titanium joints. Materials and Design 101 (2016) 137-145.
  • Lu, J., Kashaev, N., Huber, N.: Optimization of crenellation patterns for fatigue crack retardation via genetic algorithm and the reduction in computational cost. Engineering Failure Analysis 63 (2016) 21-30.
  • Liu, J., Staron, P., Riekehr, S., Stark, A., Schell, N., Huber, N., Schreyer, A., Müller, M., Kashaev, N.: Phase transformations during solidification of a laser-beam-welded TiAl alloy – An in situ synchrotron study. Metallurgical and Materials Transactions A 47A (2016) 5761-5770.
  • Enz, J., Riekehr, S., Ventzke, V., Huber, N., Kashaev, N.: Laser weldability of high-strength Al-Zn alloys and its improvement by the use of an appropriate filler material. Metallurgical and Materials Transactions A (2016) 2830-2841.
2015
  • Liu, J., Staron, P., Riekehr, S., Stark, A., Schell, N., Huber, N., Schreyer, A., Müller, M., Kashaev, N.: In Situ Study of Phase Transformations during Laser-Beam Welding of TiAl Alloy for Grain Refinement and Mechanical Property Optimization. Intermetallics 62 (2015) 27-35.
  • Enz, J., Khomenko, V., Riekehr, S., Ventzke, V., Huber, N., Kashaev, N: Single-Sided Laser Beam Welding of a Dissimilar AA2024-AA7050 T-Joint. Materials and Design 76 (2015) 110-116.
  • Kashaev, N., Ventzke, V., Riekehr, S., Dorn, F., Horstmann, M.: Assessment of alternative joining techniques for Ti-6Al-4V/CFRP hybrid joints regarding tensile and fatigue strength. Materials and Design 81 (2015) 73-81.
  • Kashaev, N., Ventzke, V., Horstmann, M., Riekehr, S., Yashin, G., Stutz, L., Beck, W.: Microstructure and Mechanical Properties of Laser Beam Welded Joints between Fine-Grained and Standard Ti-6Al-4V Sheets Subjected to Superplastic Forming. Advanced Engineering Materials 17 (2015) 374-382.
  • Sticchi, M., Schnubel, D., Kashaev, N., Huber, N.: Review of Residual Stress Modification Techniques for Extending the Fatigue Life of Metallic Aircraft Components. Applied Mechanics Reviews 67 (2015) 01801-(1-9).
  • Lu, J., Huber, N., Kashaev, N.: Influence of the geometry on the fatigue performance of crenellated fuselage panels. Ciência & Tecnologia dos Materiais 27 (2015) 99-106.
  • Kashaev, N., Riekehr, S., Erdmann, K., Carvalho, A., Nurgaliev, M., Alexopoulos, N.D., Karanika, A.: Fracture Mechanical Behaviour of Laser Beam-Welded AA2198 Butt Joints and Integral Structures. International Journal of Structural Integrity 6(6) (2015) 787-798.
  • Coratella, S., Sticchi, M., Toparli, M. B., Fitzpatrick, M. E., Kashaev, N.: Application of the eigenstrain approach to predict the residual stress distribution in laser shock peened AA7050-T7451 samples. Surface & Coatings Technology 273 (2015) 39-49.
  • Schäfer, H., Hess, C., Tobergte, H., Volf, A., Ichilmann, S., Eickmeier, H., Voss, B., Kashaev, N., Nordmann, J., Akram, W., Hartmann-Azanza, B., Steinhart, M.: Ultrafine Sanding Paper: A Simple Tool for Creating Small Particles. Small 11(8) (2015) 931-935.
  • Steglich, D., Tian, X., Bohlen, J., Riekehr, S., Kashaev, N., Kainer, K.U., Huber, N.: Experimental and numerical crushing analyses of thin-walled magnesium profiles. International Journal of Crashworthiness 20 (2015) 177-190.
  • Schäfer, H., Küpper, K., Wollschläger, J., Kashaev, N., Hardege, J., Walder, L., Mohsen, B.-M., Hartmann-Azanza, B., Steinhart, M., Sadaf, S., Dorn, F.: Oxidized mild steel S235: an efficient anode for electrocatalytically initiated water splitting. ChemSusChem 8(18) (2015) 3099-3110.
  • Sticchi, M., Staron, P., Sano, Y., Meixer, M., Klaus, M., Rebelo-Kornmeier, J., Huber, N., and Kashaev, N.: A parametric study of laser spot size and coverage on the laser shock peening induced residual stress in thin aluminium samples. The Journal of Engineering (2015). DOI: 10.1049/joe.2015.0106.
2014
  • Enz, J., Riekehr, S., Ventzke, V., Sotirov, N., Kashaev, N.: Laser Welding of High-Strength Aluminium Alloys for the Sheet Metal Forming Process. Procedia CIRP 18 (2014) 203-208.
  • Enz, J., Iwan, H., Riekehr, S., Ventzke, V., Kashaev, N.: Fracture behaviour of a laser beam welded high-strength Al-Zn alloy. Procedia Materials Science 3 (2014) 1828-1833.
  • Kashaev, N., Riekehr, S., Horstmann, M., Ventzke, V.: Fatigue, Fatigue Crack Propagation and Fracture mechanical Behaviour of Laser Beam Welded AZ31 Magnesium Sheets. Materials Science Forum 783-786 (2014) 2310-2315, invited presentation at the International Conference THERMEC 2013 in Las Vegas, USA.
  • Ventzke, V., Riekehr, S., Horstmann, M., Haack, P., Kashaev, N.: One-sided Nd:YAG laser beam welding for the manufacture of T-joints made of aluminium alloys for aircraft construction. Welding and Cutting 13 (2014) 245-249.
  • Ventzke, V., Riekehr, S., Horstmann, M., Kashaev, N., Brokmeier, H.-G., Huber, N.: The Development of the Rotational Friction Welding Process for the Welding of -TiAl-Casting Alloy Ti-47Al-3.5(Mn+Cr+Nb)-0.8(B+Si) to Ti-6Al-4V. Part I. Practical Metallography 51 (2014) 321-352.
  • Kashaev, N.; Chupakhin, S., Enz, J., Ventzke, V., Groth, A., Horstmann, M., and Riekehr, S.: Fatigue and Fatigue Crack Propagation of Laser Beam-Welded AA2198 Joints and Integral Structures. Advanced Materials Research 891-892 (2014) 1457-1462.
  • Liu, J., Ventzke, V., Staron, P., Schell, N., Kashaev, N., Huber, N.: Effect of post-weld heat treatment on microstructure and mechanical properties of laser-beam-welded TiAl-based alloy. Metallurgical and Materials Transactions A 4501 (2014) 16-28, DOI: 10.1007/s11661-013-1886-5.
  • Ventzke, V., Riekehr, S., Horstmann, M., Kashaev, N., Brokmeier, H.-G., Huber, N.: The Development of the Rotational Friction Welding Process for the Welding of -TiAl-Casting Alloy Ti-47Al-3.5(Mn+Cr+Nb)-0.8(B+Si) to Ti-6Al-4V. Part II. Practical Metallography 51 (2014) 401-424.
  • Stutz, L., Beck, W., Arends, S., Horstmann, M., Ventzke, V., Kashaev, N.: Material saving and cost reduction with hot forming of U-shaped titanium part. Materials Science and Engineering Technology 45 (2014) 841-846.
2012 - 2013
  • Steglich, D., Bohlen, J., Tian, X., Riekehr, S., Kashaev, N., Bargmann, S., Letzig, D., Kainer, K.U., Huber, N.: Crashworthiness of Magnesium Sheet Structures. In: Materials Science Forum, Light Metals Technology Conference, LMT 2013. Vol. 765 (2013) 590 - 594. (DOI: 10.4028/www.scientific.net/MSF.765.590).
  • Liu, J., Dahmen, M., Ventzke, V., Kashaev, N., Poprawe, R.: The effect of heat treatment on crack control and grain refinement in laser beam welded -solidifying TiAl-based alloy, Intermetallics 40 (2013) 65-70.
  • Kashaev, N., Horstmann, M., Ventzke, V., Riekehr, S., Huber, N.: Comparative study of mechanical properties using standard and micro-specimens of base materials Inconel 625, Inconel 718 and Ti-6Al-4V. In: Journal of Materials Research and Technology: JMRT. Vol. 2 (2013) 1, 43 - 47. (DOI: 10.1016/j.jmrt.2013.03.003).
  • In: Poole, W.J.; Kainer, K.U. (Eds.): Proceedings of the 9th International Conference on Magnesium Alloys and their Applications, MG 2012. Vancouver (CDN), 08.-12.07.2012, 2012. 827 - 832. (ISBN: 978-0-615-67510-7)
  • Fricke, W.; Zacke, S.; Kocak, M.; Eren, S.E.: Fatigue and fracture strength of ship block joints welded with large gaps. In: Welding in the world. Vol. 56 (2012) 3-4.
  • Enz, J.; Riekehr, S.; Ventzke, V.; Kashaev, N.; Huber, N.: Prozessoptimierung fuer das Laserstrahlschweissen von hochfesten Aluminium-Lithium-Legierungen. In: Schweissen und Schneiden. Vol. 64 (2012) 8, 482 - 485.
  • Riekehr, S.; Ventzke, V.; Horstmann, M.; Kashaev, N.: Fatigue and Fatigue Crack Propagation of Nd:YAG Laser Beam Welded Magnesium AZ31-HP Sheet Material.
  • Enz, J.; Riekehr, S.; Ventzke, V.; Kashaev, N.: Influence of the Local Chemical Composition on the Mechanical Properties of Laser Beam Welded Al-Li Alloys. In: Physics Procedia [Online Ressource]. Vol. 39 (2012) 51 - 58. (DOI: 10.1016/j.phpro.2012.10.013)
  • Schnubel, D.; Huber, N.: Retardation of fatigue crack growth in aircraft aluminium alloys via laser heating - Numerical prediction of fatigue crack growth. In: Computational Materials Science. Vol. 65 (2012) 461-469.
  • Schnubel, D.; Horstmann, M.; Staron, P.; Fischer, T.; Huber, N.: Retardation of fatigue crack growth in aircraft aluminium alloys via laser heating - Experimental proof of concept. In: Materials Science and Engineering A. Vol. 546 (2012) 8-14.
  • Schnubel, D.; Horstmann, M.; Staron, P.; Fischer, T.; Huber, N.: Laser heating as approach to retard fatigue crack growth in aircraft aluminium structures. In: Proceedings of the 1st International Conference of the International Journal of Structural Integrity. Porto (P), 25.-28.06.2012, 2012. 52 - 59.
2010 - 2011
  • Uz, M. V.; Chen, Y. J.; Huber, N.: Fatigue life improvement of metallic aerosapace structures via crenallations. 26th ICAF Symposium, Montréal, 1–3 June 2011
  • Daneshpour, S.; Dyck, J.; Ventzke, V.; Huber, N.: Crack retardation mechanism due to overload in base material and laser welds of Al alloys. International Journal of Fatigue, (2011). doi:10.1016/j.ijfatigue.2011.07.010.
  • Schnubel, D.; Huber, N.: The influence of crack face contact on the prediction of fatigue crack propagation in residual stress fields . Engineering Fracture Mechanics Vol. xxx, pp. xxx-xxx. doi: 10.1016/j.engfracmech.2011.12.008
  • Staron, P.; Fischer, T.; Lippmann, T.; Stark, A.; Daneshpour, S.; Schnubel, D.; Uhlmann, E.; Gerstenberger, R.; Camin, B.; Reimers, W.; Eidenberger, E.; Clemens, H.; Huber, N.; Schreyer, A.: In Situ Experiments with Synchrotron High-Energy X-Rays and Neutrons. Advanced Engineering Matarials, 2011, Volume 13, Issue 8, pp. 658-663. doi: 10.1002/adem.201000297.
  • Schnubel, D.; Möller, M.; Huber, N.: Boundary condition identification for structural welding simulation via artificial neural networks . In Proccedings of the 3rd International Workshop on Thermal Forming and Welding Distortion IWOTE. Bremen 6-7April 2011.
  • Vaidya, W. V.; Staron, P.; Horstmann, M.: Fatigue crack propagation into the residual stress field along and perpendicular to laser beam butt-weld in aluminium alloy AA6056. Fatigue & Fracture of Engineering Materials & Structures. Vol. xxx pp. xxx-xxx. doi: 10.1111/j.1460-2695.2011.01631.x.
  • Vaidya, W. V.; Horstmann, M.; Angamuthu, K.; Koçak, M.: Utilising COD(max) as an Indirect Fatigue Crack Length Measurement Parameter for M(T) Specimens of an Airframe Aluminium Alloy AA6056. MP Materials Testing - Materials and Components Technology and Application, Vol. 52 (2010), Issue 11-12, pp. 771-777.
  • Daneshpour, S.; Dyck, J.; Ventzke, V.; Huber, N. : Mechanisms of crack retardation due to overload in Al-alloy laser welds. Fatigue Damage of Structural Materials (FDSM VIII), 19-24 Sept. 2010, Hyannis, USA.
  • Ventzke, V.; Brokmeier, H.-G.; Merhof, P.; Koçak, M.: Microstructural characterization of friction welded TiAl-Ti6Al4V hybrid joints. Solid State Phenomena, Vol. 160 (2010), pp. 319-326, Trans. Tech, Publications, Switzerland, doi:10.4028/www.scientific.net/SSP.160.319.
  • Vaidya, W. V.; Horstmann, M.; Angamuthu, K.; Koçak, M.: Parametric (Non)-Variance of the Mid-Regime Fatigue Crack Propagation in an Aluminium Alloy AA6056-T6. MP Materials Testing - Materials and Components Technology and Application, Volume: 52, Issue 5, pp. 300-305.
  • Vaidya, W. V.; Horstmann, M.; Ventzke, V.; Petrovski, B.; Koçak, M.; Tempus, G.: Improving interfacial properties of a laser beam welded dissimilar joint of aluminium AA6056 and titanium Ti6Al4V for aeronautical applications. Journal of Materials Science (2010) 45, Number 22, pp. 6242-6254. doi 10.1007/s10853-010-4719.
  • Daneshpour, S.; Koçak, M.; Riekehr, S.; Staron, P.; Martinson, P.: Residual stress and fatigue analyses of laser spot welded joints. Mathematical Modelling of Weld Phenomena 9, ISBN 978-3-85125-127-2, Technische Universität Graz- Austria, 2010, pp. 727-743.
  • Schnubel, D.; Staron, P.; Koçak, M.; Huber, N.: Mechanical Tensioning - An Approach to Control Residual Stresses and Distortions of Laser Welded Aluminium Skin-Stringer Joints. In European Conference on Materials and Structures in Aerospace EUCOMAS 2010, 7-8 June 2010.
2005 - 2009
  • Uz, M.-V.; Kocak, M.; Lemaitre, F.; Ehrstroem, J.-E.; Kempa, S.; Bron, F.: Improvement of damage tolerance of laser beam welded stiffened panels for airframes via local engineering. In: International Journal of Fatigue. Vol. 31 (2009) 5, 916 - 926.
  • Martinson, P.; Daneshpour, S.; Kocak, M.; Riekehr, S.; Staron, P.: Residual stress analysis of laser spot welding of steel sheets. In: Materials and Design. Vol. 30 (2009) 9, 3351 - 3359. DOI:10.1016/j.matdes.2009.03.041
  • Vaidya, M.V.; Horstmann, M.; Ventzke, V.; Petrovski, B.; Kocak, M.; Kocik, R.; Tempus, G.: Structure-property investigations on a laser beam welded dissimilar joint of aluminium AA6056 and titanium Ti6Al4V for aeronautical applications, Part I: Local gradients in microstructure, hardness and strength. In: Materialwissenschaft und Werkstofftechnik. Vol. 40 (2009) 8, 623 - 633.
  • Daneshpour, S.; Kocak, M.; Langlade, S.; Horstmann, M.: Effect of overload on fatigue crack retardation of aerospace Al-alloy laser welds using crack-tip plasticity analysis. In: International Journal of Fatigue. Vol. 31 (2009) 10, 1603 - 1612. DOI:10.1016/j.ijfatigue.2009.04.005
  • Daneshpour, S.; Riekehr, S.; Kocak, M.; Gerritsen, C.H.J.: Mechanical and fatigue behaviour of laser and resistance spot welds in advanced high strength steels. In: Science and Technology of Welding and Joining. Vol. 14 (2009) 1, 20 - 25.
  • Vaidya, M.V.; Horstmann, M.; Ventzke, V.; Petrovski, B.; Kocak, M.; Kocik, R.; Tempus, G.: Structure-property investigations on a laser beam welded dissimilar joint of aluminium AA6056 and titanium Ti6Al4V for aeronautical applications, Part II: Resistance to fatigue crack propagation and fracture. In: Materialwissenschaft und Werkstofftechnik. Vol. 40 (2009) 10, 769 - 779.
  • Coelho, R.S.; Kostka, A.; Pinto, H.; Riekehr, S.; Kocak, M.; Pyzalla, A.R.: Microstructure and mechanical properties of magnesium alloy AZ31B laser beam welds. In: Materials Science and Engineering A. Vol. 485 (2008) 1-2, 20 - 30.
  • Daneshpour, S.; Riekehr, S.; Kocak, M.; Ventzke, V.; Koruk, A.I.: Failure behaviour of laser spot welds of TRIP800 steel sheets under coach–peel loading. In: Science and Technology of Welding and Joining. Vol. 12 London: Maney, (2007) 6, 508 - 515.
  • Alexandrov, S.; Kocak, M.: Limit load analysis of strength undermatched welded T-joints under bending. In: Fatigue and Fracture of Engineering Materials and Structures. Vol. 30 Oxford: Blackwell, (2007) 4, 351 - 355.
  • W.V Vaidya, M. Horstmann, E. Seib, K. Toksoy, M. Kocak: Assessment of Fracture and Fatigue Crack Propagation of Laser Beam and Friction Stir Welded Aluminium and Magnesium Alloys. In: Advanced Engineering Materials 2006, 8, No. 5, pp. 399-406.
  • E. Seib, M. Koçak, V. Zu: Fracture Analysis of Thin-Walled Laser Beam and Friction Stir Welded Al-alloys using FITNET FFS Procedure, Int. Conf. FITNET 2006, 17-19 May 2006, Amsterdam.
  • FS Bayraktar, P. Staron, M. Koçak, A. Schreyer: Residual Stress Analysis of Laser Welded Aluminium T-Joints Using Neutron Diffraction. In: Materials Science Forum Vols, 524-525 (2006) pp. 419-424.
  • E. Seib, M. Koçak: Fracture Analysis of Strength Undermatched Welds of Thin-walled Aluminium Structures using FITNET Procedure. In: Welding in the World, November/December 2005, pp. 58-69.