Engineering adhesive joints are being increasingly used in industry because of the advantages they offer over other joining methods such as fastening or welding. The development and the use of adhesives in a design environment require accurate mechanical tests in order to measure their strength and toughness. Standard techniques such as the shear lap test are commonly used to measure shear stre...

Handling and processing of bulk granular materials is of major importance in many industries including agriculture, chemical, food, pharmaceutical, construction and mining. In recent decades, the Discrete Element Method (DEM) is increasingly adopted for studying the complex behaviour of granular materials and simulating the industrial processes in many applications. DEM computes at individual p...

An arterial dissection is a longitudinal tear in the vessel wall, which can create a false lumen for blood flow and may propagate quickly, leading to death. We employ a computational model for a dissection using the extended finite element method with a cohesive traction-separation law for the tear faces. The arterial wall is described by the anisotropic hyperelastic Holzapfel–Gasser–Ogden mate...

Ito, M. and G. Thierrin, Congruences, infix and cohesive prefix codes, Theoretical Computer Science 136 (1994) 471 485. A language L _~ X * is called a cohesive prefix code if xLyc~L ~ 0 implies that y = 1 and xL c L for any x, y~X*. An example of cohesive prefix codes is an infix code. We determine first the structure of cohesive prefix codes and then we study several relationships between max...

this study aims to understand certain linguistic and semantic resources for the text construction, namely the constructs of cohesion, coherence. the analysis of cohesive ties was conducted on the writing samples of 40 subjects (20 most coherent and 20 least coherent) iranian undergraduates of english. this prompted us to identify the dominant types of cohesive devices used in most coherent writ...

immediate restoration after vital pulp therapy is essential in order to create and maintain effective coronal seal.the aim of this study was to evaluate the shear bond strength of recently used pulp capping materials: white mineral trioxide aggregate (mta), and calcium enriched mixture cement (cem) to composite resin with the use of etch-and-rinse and self-etch adhesive systems and compare them...

Finite element analyses using cohesive zone models (CZM) can be used to predict the fracture of atherosclerotic plaques but this requires setting appropriate values of the model parameters. In this study, material parameters of a CZM were identified for the first time on two groups of mice (ApoE-/- and ApoE-/- Col8-/-) using the measured force-displacement curves acquired during delamination te...

Mechanical vibrations of non-local systems with long-range, cohesive, interactions between material particles have been studied in this paper by means of fractional calculus. Long-range cohesive forces between material particles have been included in equilibrium equations assuming interaction distance decay with order α . This approach yields as limiting case a partial fractional differential e...

When a material is so soft that the cohesive strength (or adhesive strength, in the case of interfacial fracture) exceeds the elastic modulus of the material, we show that a crack will blunt instead of propagating. Large-deformation ­ nite-element model (FEM) simulations of crack initiation, in which the debonding processes are quanti­ ed using a cohesive zone model, are used to support this hy...

The reparability of dual-cured resin composite core buildup materials using a light-cured one following one week or three months storage, prior to repair was evaluated. Two different dual-cured resin composites; Cosmecore™ DC automix and Clearfil™ DC automix core buildup materials and a light-cured nanofilled resin composite; Filtek™ Z350 XT were used. Substrate specimens were prepared (n = 12/...