Composite Structures Laboratory


Textile Composites
Size Effects
3-D Compsites
Manufacturing Effects
Blast Response

Adhesive Joints
Reliability Prediction
Thin-Film Laminates
Sandwich Fracture
Cohesive Zone Models

Multi-Scale Theories
Progressive Failure
Cohesive Method
C/SiC Composites

Biological Structures
Insect Wing

University of Michigan
Aerospace Engineering
Lab CTools


Experimental Investigation and Modeling of 3D Woven Composites under High Strain Rates
PI: Anthony M. Waas
Particpants: Mark Pankow, Brian Justusson, Amit Salvi

Impact Specimen

Of interest in this project is the development of validated mechanics models to understand and predict the deformation response and failure of woven and braided textile composites including 3D architectures. The project involves characterizing the actual textile architecture using micro CT scanning methods, using that knowledge to develop 3D FE models and refining these models to predict the deformation response of composite panels when subjected to dynamic pressure loading. Split Hopkinson Bar methods are used to characterize the constituents of the composite and the various fracture modes. This information, in conjunction with model predictions are validated by conducting drop tower tests and shock tube dynamic pressure loading tests.

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