The behavior of a thin curved hyperelastic film bonded to a fixed substrate is described by an energy composed of a nonlinearly hyperelastic energy term and a debonding interfacial energy term. We compute the Γ-limit of this energy under a noninterpenetration constraint that prohibits penetration of the film into the substrate without excluding contact between them.

The wear resistance mechanisms of a silicon carbide (SiC) paticulate reinforced Al–Li alloy composite at 250°C by a pyramidal indenter have been studied. It is found that the subsurface damages that control the wear resistance are: generation of dislocations and cracks in the SiC particles, interface debonding between matrix and reinforcements and plastic deformation of the matrix. © 1998 Elsev...

Acoustic emission monitoring is a useful technique to deal with detection and identification of damage in composite materials. Over the last few years, through intelligent signal processing was particularly emphasized. Data-driven models are developed predict remaining lifetime. Finite elements modeling (FEM) used simulate AE signals due fiber break fiber/matrix debonding model carbon thereby b...

Interfacial mechanical properties of carbon/glass hybrid thermoplastic epoxy composite rods play a crucial role in the determination strength and fracture behavior. In this study, push-out push-back tests using three with different ratios were performed to investigate interfacial shear mechanism. Debonding occurred at interface between glass fiber bundles epoxy. After onset debonding, sinusoida...

The objectives of this study were to retrospectively evaluate the clinical survival rate of flexible, braided, rectangular bonded stainless steel lingual retainers, and to investigate the influence of gender, age of the patient, and operator experience on survival after orthodontic treatment at the Department of Orthodontics, University of Groningen, between the years 2002 and 2006. The study g...

Background and Aim: This study aimed to evaluate the effect of repeated bonding by self-etching primers (SEPs) and a conventional phosphoric acid-etchant on shear bond strength (SBS), adhesive remnant index (ARI), and enamel morphology at different debonding time points. Materials and Methods: In this experimental study, 120 premolars were randomly divided into six groups of 20. In the first t...

Temporary bonding/debonding (TBDB) technologies have greatly contributed to the reliable fabrication of thin devices. However, rapid development large-scale, high-precision and ultra-thin devices in semiconductor field has also proposed more stringent requirements for TBDB technologies. Here, we deliberate recent progress materials temporary bonding different debonding over past decade. Several...

Some of the advantages that results from the structural strengthening of concrete slabs using prestressed fiber reinforced polymer (FRP) systems are as follows: the prestressed FRP delays the formation and propagation of cracks, and both the serviceability and the flexural capacity are increased. In this research program, the flexural performance of a concrete slab strengthened with a three-sta...

Abstract Fibre Reinforced Polymers (FRPs) are extensively employed to strengthen existing structures because of their several advantages over other strengthening techniques. On the hand, premature debonding FRP reduces its effectiveness in steel structures. Anchoring composites is an effective solution delay or even prevent debonding. Very limited anchorage methods, however, have been introduce...