Influence of Confinement Condition on Particle Impact Damage in Soda-Lime Glass

Abstract:

In order to investigate the effect of a confinement condition on the damage induced by a spherical impact, an experimental setup that can impact contact pressure to the specimen through a pressing die was composed. The steel and the WC balls in 3mm diameter impacted to the soda-lime glass specimen with dimension of 33×33×8m in the impact velocity range of 30m/s to 200m/s. Three different conditions are given for the impact damage investigation, which are the case without a pressing die and the cases of p=0MPa and p=200MPa with a pressing die. The stress distribution in the glass specimen by impacting the particle was also evaluated using MARC s/w system. The particle impact produced various kinds of the damage such as the ring and the cone cracks, the radial cracks and the craters. The contact pressure applied to the specimen changed stress fields in the specimen. The damage zones of the specimen without a pressing die increased as the impact velocity increased. The damage extents in the specimen with the contact pressure of 200MPa were reduced as compared with the case of those without a pressing die.

• Periodical: Key Engineering Materials (Volumes 297-300)
• Pages: 1315-1320
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.297-300.1315
• Online since: November 2005
• Authors: Sang Yeob Oh, Hyung Seop Shin, Chang Min Suh
• Keywords: Cone Crack, Contact Pressure, Damage Zone, Impact Loading, Pressing Die, Radial Crack, Ring Crack, WC Ball

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