This study presents a novel method to describe the microscale phenomenon of cracks initiation based on sensitivity analysis in laminate fiber-reinforced composites. The failure composite laminates often roots fiber/matrix interfacial debonding. micro-cracking and debonding composites are difficult detect both experimentally numerically. paper shows that stress response transverse ply with respe...

In this paper, micromechanical constitutive models are developed to predict the tensile and fatigue behavior of fiber-reinforced ceramic-matrix composites (CMCs) considering matrix fragmentation closure. Damage fragmentation, interface debonding, fiber’s failure considered in analysis response, closure, debonding repeated sliding hysteresis response. Relationships between established. Experimen...

When a particle inclusion is embedded in a polymer matrix, the polymer tends to adsorb on the surface of the in-clusion. The effect of this may result in an interphasial zone between the particle and the polymer often referred toas “bound” rubber. The extent and composition of this zone depends on a number of factors, including the surfacearea and surface treatment of the partic...

Ceramic brackets have gained widespread acceptance in orthodontic treatment due to their superior aesthetic appeal. The immediate popularity of these brackets, after their initial marketing, was tempered by their potential to damage the enamel during debonding. This paper describes the design and development of a ceramic bracket that addresses the failings of most ceramic brackets on the market...

Debonding-on-demand adhesives were designed by fabricating photochemical reversible bonds and using dynamic polymer cleavage flow generation mechanisms.

A study on the bending response of a composite curved panel with pyramidal metallic truss cores suitable for functional applications is presented using a combination of analytical modeling, three-point bending experiments and finite element (FE) based simulations. The aluminum pyramidal cores were constructed using an interlocking method before curing with composite face sheets to fabricate the...

BACKGROUND Different in-vitro studies have reported various results regarding shear bond strength (SBS) of orthodontic brackets when SEP technique is compared to conventional system. This in-vivo study was designed to compare the effect of conventional acid-etching and self-etching primer adhesive (SEP) systems on SBS and debonding characteristics of metal and ceramic orthodontic brackets. MA...

• Debonding of solidified splat was observed under various impact conditions. Scraping test conducted to evaluate the adhesion strength splat. explains debonding behavior Tensile residual stress reduces scraping force and prevents removal splats is a crucial issue for thermal sprayed coatings, which greatly influences performance lifetime industrial components. The purpose this study provide an...