Equilibrium internal fractures in elastic bodies supported by thin flexible coatings

Ultra-thin optical interference coatings on rough and flexible substrates

The elastic mechanical response of supported thin polymer films.

Nanoindentation studies of the mechanical properties of sufficiently thin polymer films, supported by stiff substrates, indicate that the mechanical moduli are generally higher than those of the bulk. This enhancement of the effective modulus, in the thickness range of few hundred nanometers, is indicated to be associated with the propagation and impingement of the indentation tip induced stres...

Cooling Enhancements in Thin Films Supported by Flexible Complex Seals in the Presence of Ultrafine Suspensions

Flow and heat transfer inside thin films supported by flexible soft seals having voids of a stagnant fluid possessing a large coefficient of volumetric thermal expansion bT are studied in the presence of suspended ultrafine particles. The study is conducted under periodically varying thermal load conditions. The governing continuity, momentum and energy equations are non-dimensionalized and red...

Ingested Foreign Bodies Removed by Flexible Endoscopy in Pediatric Patients: A 10-year Retrospective Study

Introduction: Determination of type and location of trapped objects and endoscopic observations among children with foreign-body ingestion. Materials and Methods: We evaluated 105 endoscopic records of patients presenting with foreign-body ingestion from 2001–2011. Results: Button batteries were the most common objects removed (41%). The lower segment of the esophagus was the most common trappi...

Dynamics of elastic bodies connected by a thin soft inelastic layer

We extend the study [1] devoted to the dynamic response of a structure made of two linearly elastic bodies connected by a thin soft adhesive layer made of a Kelvin Voigt type nonlinear viscoelastic material to the case of a Generalized Standard Material with a positive definite quadratic density of free energy. A concise formulation in terms of an evolution equation in a Hilbert space of possib...