In addition to processing a troubling agricultural by-product and reducing demands on our landfills, prepared agro-waste composites are suitable for a variety of practical applications. However, enhancing value-added options for these agricultural by-products can necessitate ability to assess their mechanical integrity. This paper accordingly describes the preparation of a cellulosic-manure composite and demonstrates ability to determine stresses in a perforated structure of the material from measured displacement data. Processing digital image correlation (DIC) recorded displacement information with an Airy stress function gives reliable results full-field as well as at the edge of geometric discontinuities without having to differentiate the recorded data. Required constitutive properties are evaluated in situ and results are substantiated independently.

Issue Section:
Research Papers
Keywords:
Elastic behavior, Materials processing, Mechanical behavior
Topics:
Composite materials, Displacement, Stress, Finite element analysis

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