Raffael Bogenfeld

Dr. Raffael Bogenfeld

Damage Tolerance
+2
orcid

Research Focus & Metrics

Academic Career Length

13Years (2014-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 April 2018 in Engineering Failure Analysis
Verified
Journal Article
Closed access
RBRaffael Bogenfeld
Raffael Bogenfeld
JKJanko Kreikemeier
Janko Kreikemeier
TWTobias Wille
Tobias Wille

1 May 2020 in Composites Science and Technology
Verified
Journal Article
Closed access
RBRaffael Bogenfeld
Raffael Bogenfeld
PSPatrik Schmiedel
Patrik Schmiedel
NKNaren Kuruvadi
Naren Kuruvadi
TWTobias Wille
Tobias Wille
JKJanko Kreikemeier
Janko Kreikemeier

1 March 2018 in Composite Structures
Verified
Journal Article
Closed access
RBRaffael Bogenfeld
Raffael Bogenfeld
JKJanko Kreikemeier
Janko Kreikemeier
TWTobias Wille
Tobias Wille

1 May 2017 in Composite Structures
Verified
Journal Article
Closed access
RBRaffael Bogenfeld
Raffael Bogenfeld
JKJanko Kreikemeier
Janko Kreikemeier

10 November 2021 in Journal of Composites Science
Verified
Journal Article
Open access
PDF file
RBRaffael Bogenfeld
Raffael Bogenfeld
CGChristopher Gorsky
Christopher Gorsky
The behavior of impact damaged composite laminates under cyclic load is crucial to achieve a damage tolerant design of composite structures. A sufficient residual strength has to be ensured throughout the entire structural service life. In this study, a set of 27 impacted coupon specimens is subjected to quasi-static and cyclic compression load. After long intervals without detectable damage growth, the specimens fail through the sudden lateral propagation of delamination and fiber kink bands within few load cycles. Ultrasonic inspections were used to reveal the damage size after certain cycle intervals. Through continuous dent depth measurements during the cyclic tests, the evolution of the dent visibility was monitored. These measurements revealed a relaxation of the indentation of up to 90% before ultimate failure occurs. Due to the distinct relaxation and the short growth interval before ultimate failure, this study confirms the no-growth design approach as the preferred method to account for the damage tolerance of stiffened, compression-loaded composite laminates.

1 February 2019 in Composite Structures
Verified
Journal Article
Closed access
RBRaffael Bogenfeld
Raffael Bogenfeld
JKJanko Kreikemeier
Janko Kreikemeier
TWTobias Wille
Tobias Wille