Investigation on Maximum Aggregate Size Effects on Damage Pattern and Ballistic Limit Velocity of Cementitious Composite Subjected to Impact Loading

پديدآورندگان

Mohamadi SH.A. F. Masters Student, Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran , Liaghat GH. ghlia530@modares.ac.ir Professor, Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran , Pedram E. Research Assistant, Laboratory of impact mechanics, Tarbiat Modares University, Tehran, Iran , Bayat A. Ph.d Student, Department of Mechanical Engineering, Tarbiat Modares University, Tehran, Iran

تعداد صفحه

2

كليدواژه

Cementitious Composite , Aggregate Size , Impact Load , Damage Pattern , Ballistic Limit Velocity.

سال انتشار

1396

عنوان كنفرانس

چهارمين كنفرانس بين المللي دو سالانه مكانيك جامدات تجربي

زبان مدرك

انگليسي

چكيده فارسي

The resistance of cementitious composite infrastructures to shock, earthquake, impact and penetration has become an emerging research focus in cement technology. Since aggregates make up 55 to 75% of the total volume of the composite, hence study the influence of maximum aggregate size on impact resistance of such composites is necessary for protective engineering applications. In this paper the response of cementitious composite samples subjected to impact of rigid steel projectile has been investigated. Three series of each group of samples with different maximum aggregate sizes were made in laboratory. Compressive and indirect tensile strength performed for cylindrical samples by UTM and impact loading tests conducted for cubic samples using a gas gun apparatus. Ballistic limit velocity and perforation limit evaluated based on Chen et al (2008) formula approach and damage pattern for all samples with different aggregate size were measured and analyzed. Results were presented and discussed.

كشور

ايران