SMSteffen Marburg

Steffen Marburg

*This is an algorithmically generated author record based on publicly available information.

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Steffen Marburg has a total of 6 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Comparative Performance of Stiffened Sandwich Foam Panels under Impulsive Loading

    by Manmohan Dass Goel, Vasant A. Matsagar, Steffen Marburg, Anil K. Gupta

    Modeling and numerical simulation of foam sandwich panels subjected to impulsive loading are presented. The sandwich panels consist of steel sheets at front and back with two varieties of foam cores in between. Stiffeners are provided at the back sheet for improved response. The dynamic response of the stiffened steel plate (SSP), sandwich foam panel (SFP), and stiffened sandwich foam panel (SSFP) are compared. The foam material modeling accounts for elastic-plastic behavior with volumetric hardening. The finite element–based numerical simulation for dynamic analysis is performed using a combination of shell and solid elements for sheets and foam, respectively. Central point displacements caused from the impulsive load of peak pressure of 0.7 MPa and lasting for 15 ms applied uniformly to the sandwich panels are studied. The analysis is carried out with an objective of understanding the effects of foam thickness, type of foam, and the stiffener configurations. The results obtained indicate that the SSFP considerably increase the resistance to impulsive loading compared with the SSP and SFP.


  • Surface contributions to radiated sound power

    by Steffen Marburg, Eric Lösche, Herwig Peters, Nicole Kessissoglou

    This paper presents a method to identify the surface areas of a vibrating structure that contribute to the radiated sound power. The surface contributions of the structure are based on the acoustic radiation modes and are computed for all boundaries of the acoustic domain. The surface contributions are compared to the acoustic intensity, which is a common measure for near-field acoustic energy. Sound intensity usually has positive and negative values that correspond to energy sources and sinks on the surface of the radiating structure. Sound from source and sink areas partially cancel each other and only a fraction of the near-field acoustic energy reaches the far-field. In contrast to the sound intensity, the surface contributions are always positive and no cancelation effects exist. The technique presented here provides a method to localize the relevant radiating surface areas on a vibrating structure. To illustrate the method, the radiated sound power from a baffled square plate is presented.