Computed Tomography analysis of damage in composites subjected to impact loading
Journal Title: Frattura ed Integrità Strutturale - Year 2011, Vol 5, Issue 17
Abstract
The composites, used in the transportation engineering, include different classes with a wide range of materials and properties within each type. The following different typologies of composites have been investigated: laminated composites, PVC foam sandwiches, aluminium foam and honeycomb sandwiches. Aim of this paper was the analysis of low-velocity impact response of such composites and the investigation of their collapse modes. Low velocity impact tests were carried out by a drop test machine in order to investigate and compare their structural response in terms of energy absorption capacity. The failure mode and the internal damage of the impacted composites have been, also, investigated using 3D Computed Tomography.
Authors and Affiliations
V. Crupi, G. Epasto, E. Guglielmino
Gradient-enriched linear-elastic tip stresses to perform the highcycle fatigue assessment of notched plain concrete
Gradient Elasticity (GE) allows the stress analysis to be performed by taking into account the size of the dominant source of microstructural heterogeneity via a suitable length scale parameter. This is done by s...
A new micromechanical model of CNT-metal nanocomposites with random clustered distribution of CNTs
Uniform dispersion of carbon nanotubes (CNTs) is a key issue for utilization of their reinforcement potential in CNT-reinforced metal matrix nanocomposites (MMNCs). It was reported that CNT clusters often exist i...
Local approaches for the fracture assessment of notched components: the research work developed by Professor Paolo Lazzarin
Brittle failure of components weakened by cracks or sharp and blunt V-notches is a topic of active and continuous research. It is attractive for all researchers who face the problem of fracture of materials under&...
Study of short cracks under biaxial fatigue
In this paper a methodology for evaluating crack initiation under biaxial conditions is presented. The methodology consists of evaluating the crack length automatically with digital processing of highmagnification...
Modeling of edge cracks interaction
From experimental and theoretical investigations it is known that cracks are sensitive to geometry, e.g., to the inclination angle to the load. A small deviation of a crack from the normal direction to a tensile l...