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Interface fatigue crack propagation in sandwich X-joints – Part I: Experiments

Authors
Publisher
Sage Science Press (UK)
Publication Date
Keywords
  • In This Study
  • Face/Core Fatigue Crack Growth In Sandwich X-Joints Is Investigated Numerically And Experimentally
  • The Work Presented Here Covers Part I Of The Study Which Includes An Experimental Investigation Of F
  • Sandwich Tear Test Specimens With A Face/Core Debond Representing A Debonded Sandwich X-Joint Were T
  • Fatigue Tests Were Conducted On The Sandwich Tear Test Specimens With H45
  • H100 And H250 Pvc Cores And Glass/Polyester Face Sheets
  • The Digital Image Correlation Technique Was Used To Locate The Crack Tip And Monitor The Crack Growt
  • For The Specimens With H45 Core
  • Unstable Crack Growth Took Place Initially
  • Following The Unstable Propagation
  • The Crack Propagated In The Core Underneath The Resin-Rich Cell Layer Approaching The Interface
  • However
  • The Crack Did Not Kink Into The Interface
  • For The Specimens With H100 Core
  • The Crack Propagated Initially In The Core Andthen Returned Into The Interface And Continued To Prop
  • For The Specimens With H250 Core
  • The Crack Initially Propagated In The Core And Then Kinked Into The Interface
  • The Interface Crack Eventually Kinked Into The Face Sheet
  • Resulting In Large-Scale Fiber Bridging
  • Finally
  • Mixed Mode Bending Tests Were Conducted To Measure Crack Growth Rates Of The Face/Core Interface At
  • The Measured Crack Growth Rates Have Been Used In Part Ii Of This Study To Simulate Fatigue Crack Gr

Abstract

Interface fatigue crack propagation in sandwich X-joints – Part I: Experiments - DTU Orbit (17/05/14) Interface fatigue crack propagation in sandwich X-joints – Part I: Experiments - DTU Orbit (17/05/14) Interface fatigue crack propagation in sandwich X-joints – Part I: Experiments. / Moslemian, Ramin; Berggreen, Christian. In: Journal of Sandwich Structures and Materials, Vol. 15, No. 4, 2013, p. 429-450. Publication: Research - peer-review › Journal article – Annual report year: 2013

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