Erosion and Damage by Hard Spherical Particles on Glass

Abstract

Solid particle impact of hard spherical particles on glass is of fundamental interest because of the presence of a number of different impact regimes. Understanding the impact of spherical particles is also a step toward modeling the behavior of rounded particles. This paper verifies theoretical models for the transitions between the different impact regimes and process parameters like erosion rate and surface roughness. The work also includes rounded particles. The transitions plotted in a so-called erosion map are validated with single-impact experiments. Data from erosion experiments are used to test the relations for the erosion rate and resulting surface roughness following from the models. Although the theoretical transitions compare reasonably with experiments, the models for erosion rate and surface roughness do not describe the experimentally found behavior. The models not incorporating the interaction between an impact and the damage remaining from earlier impacts might cause this deviation.

An Introduction to the Properties of Silica Glass in Ballistic Applications

“…So for any given particle size, there will be a transition from plastic to brittle behaviour as the impact velocity is increased (see Figure ). Slikkerveer and co‐workers found this behaviour for both soda‐lime and borosilicate glasses despite them having very different network structures on the atomic scale. Quasistatic indentation studies of plasticity in glass have been performed by a number of researchers over many years, e.g.…”

“…(B) Scanning electron micrograph of a damage site produced by a single impact of an approximately 180‐µm‐sized spherical ceramic sphere (exact impact velocity not known) on a borosilicate glass (AF45). From …”

“…Graph showing the fraction of impacts that produced plastic as opposed to brittle behaviour for impacts of approximately 180 µm‐sized ceramic particles on a borosilicate glass as a function of impact velocity. From …”

Predictive modeling of material removal modes in micro ultrasonic machining

“…Unlike multiple-particle impact, single particle impact has the potential of providing more explicit details on material removal modes and involved mechanisms in studies related to solid particle erosion [24][25][26][27]. Therefore, it is postulated that the study of single particle impingement in the micro-USM process could provide more insights into brittle and ductile removal modes and transition between them.…”

A Feasibility Study of Vibration-Assisted Nano-Impact Machining by Loose Abrasives Using Atomic Force Microscope

“…The impact parameters along with the results of the feasibility calculations are shown in Tables 1-3. The values of mechanical properties of the materials used for this analytical study are referred from literature [61][62][63][64][65][66][67][68][69][70][71].…”