27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-8.2.3

MICRO MECHANICS BASED PROGNOSIS OF PROGRESSIVE DYNAMIC DAMAGE IN ADVANCED AEROSPACE COMPOSITE STRUCTURES

S. Shah, J. Bayandor*, F. Abdi**, A. Najafi***
RMIT Univ., Australia; *Virginia Tech., USA; **Alpha STAR Corp., USA; ***Mississippi State Univ., USA

Keywords: delamination, micro-mechanics, composite structures, constitutive modelling, damage prediction

Coupled micromechanics/finite element models were developed for characterising the impact damage resistance and compression-after-impact (CAI) residual-strength of novel aerospace sandwich structures. Predictions for progressive impact damage and CAI strength, obtained for a variety of impact scenarios, were in close agreement with trials comprising of strain gage/optical imaging measurements.

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