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Impact and Residual Strength Assessment Methodologies

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Adaptive, tolerant and efficient composite structures

Part of the book series: Research Topics in Aerospace ((RTA))

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Abstract

In this chapter, efficient methodologies to evaluate impact resistance and damage tolerance of composite structures are introduced. Internal non-visible or barely visible impact damage (NVID, BVID) can provoke a significant strength and stability reduction in monolithic composite structures as well as in composite sandwich structures. Therefore, methodologies have been developed to reliably simulate the dynamic response and to predict the impact damage size that develops during low-velocity impact (LVI) events. Additionally, methods for the prediction of the compression-after-impact (CAI) strength are presented. Special attention is given to the impact assessment methodologies, which have been implemented in the DLR in-house tool CODAC. Simulation results of CODAC are presented and compared to experimental results.

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Authors and Affiliations

  1. Institute of Composite Structures and Adaptive Systems, German Aerospace Center (DLR e.V.), Lilienthalplatz 7, 38108, Braunschweig, Germany

    Luise Kärger, Jens Baaran & Anja Wetzel

Authors
  1. Luise Kärger
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  2. Jens Baaran
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  3. Anja Wetzel
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Corresponding author

Correspondence to Luise Kärger .

Editor information

Editors and Affiliations

  1. , Institure of Composite Structures, German Aerospace Center DLR, Lilienthalplatz 7, Braunschweig, 38108, Germany

    Martin Wiedemann

  2. , Institute for Composite Structures, German Aerospace Center DLR, Lilienthalplatz 7, Braunschweig, 38108, Germany

    Michael Sinapius

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Kärger, L., Baaran, J., Wetzel, A. (2013). Impact and Residual Strength Assessment Methodologies. In: Wiedemann, M., Sinapius, M. (eds) Adaptive, tolerant and efficient composite structures. Research Topics in Aerospace. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29190-6_13

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  • DOI: https://doi.org/10.1007/978-3-642-29190-6_13

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-29189-0

  • Online ISBN: 978-3-642-29190-6

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