Progressive delamination in polymer matrix composite laminates: A new approachA new approach independent of stress intensity factors and fracture toughness parameters has been developed and is described for the computational simulation of progressive delamination in polymer matrix composite laminates. The damage stages are quantified based on physics via composite mechanics while the degradation of the laminate behavior is quantified via the finite element method. The approach accounts for all types of composite behavior, laminate configuration, load conditions, and delamination processes starting from damage initiation, to unstable propagation, and to laminate fracture. Results of laminate fracture in composite beams, panels, plates, and shells are presented to demonstrate the effectiveness and versatility of this new approach.
Document ID
19930012326
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Chamis, C. C. (NASA Lewis Research Center Cleveland, OH, United States)
Murthy, P. L. N. (NASA Lewis Research Center Cleveland, OH, United States)
Minnetyan, L. (Clarkson Univ. Potsdam, NY., United States)
Date Acquired
September 6, 2013
Publication Date
December 1, 1992
Publication Information
Publication: AGARD, Debonding(Delamination of Composites