Abstract
In work features of deformation and material fracture with a multilayered covering at high-velocity impact interaction are investigated. The boundary dynamic problem in three-dimensional statement is solved by numerical method of finite elements. The multilayered covering is set in calculations obviously. When modeling of mechanical reaction of a steel substrate, the projectile and a covering intermediate layer made from NiAl ratios of Prandtl-Reuss and the condition equation in the form of Mi-Gruneisen are used. The coat layer from WC-Co shows elastic and fragile behavior. For the description of fracture of materials of a multilayered barrier Hoffman's criterion which includes various strength on tension and compression is used. It is shown that existence of a multilayered covering promotes increase of dynamic strength of a steel basis. It is established that reduction of penetration of the projectile, connected with covering existence, depends on velocity of interaction not linearly.
Original language | English |
---|---|
Title of host publication | 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 |
Publisher | European Conference on Fracture, ECF |
ISBN (Print) | 978-5-905576-18-8 |
Publication status | Published - 2012 |
Externally published | Yes |
Event | 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 - Kazan, Russian Federation Duration: 26 Aug 2012 → 31 Aug 2012 |
Conference
Conference | 19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety, ECF 2012 |
---|---|
Country | Russian Federation |
City | Kazan |
Period | 26.8.12 → 31.8.12 |
Keywords
- Composite materials
- Deformation
- Fracture
- Numerical modeling
ASJC Scopus subject areas
- Safety, Risk, Reliability and Quality