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A Study on Co-cured T-joint with Flange/Skin Debond

IR@NAL: CSIR-National Aerospace Laboratories, Bangalore

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Title A Study on Co-cured T-joint with Flange/Skin Debond
Creator Viswamurthy , SR
Verma, KK
Madhusudan , SP
Kumar, Dinesh
Subject Aircraft Design, Testing & Performance
Mechanical Engineering
Structural Mechanics
Description The failure mechanism of a co-cured T-joint containing an initial debond between its skin and flange is investigated in this study. A finite element model of the T-joint was developed and analyzed to investigate its failure. Virtual Crack Closure Technique (VCCT) based on fracture mechanics approach was used to investigate the onset of debond growth. A failure criteria based on interlaminar peel strength was used to predict the failure inside the Bermuda Triangle. T-joint specimens with initial debond located between flange-skin interface were fabricated through a resin infusion process. Specimens were tested by applying pull loads on the web. Numerical results showed good correlation with test data.
Date 2011-09-22
Type Conference or Workshop Item
Format application/pdf
Identifier http://nal-ir.nal.res.in/10005/1/Full%2Dpaper.pdf
Viswamurthy , SR and Verma, KK and Madhusudan , SP and Kumar, Dinesh (2011) A Study on Co-cured T-joint with Flange/Skin Debond. In: XVII National Seminar on Aerospace Structures, 22-24 September 2011, IIT-Kanpur.
Relation http://nal-ir.nal.res.in/10005/