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Imaging Interfacial Stress and Strain in Heterogeneous Films

Y. XU, L.A. WILEN, E.R. DUFRESNE

Abstract


Interface failure is common in structures consisting of dissimilar materials. Interface stresses arise due to the mismatch of mechanical properties during processing or usage which often results in fracture. While much progress has been made in understanding the interface fracture in hard materials, relatively little is known about the fracture mechanics of soft matter. A familiar yet challenging example is the drying of a colloidal film.

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