Benefits of Using Lode Angle Dependent Fracture Models to Predict Ballistic Limits of Armor Steel
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Author / Producer
Date
2018
Publication Type
Conference Paper
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yes
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Abstract
Ductile fracture experiments are carried out at different stress states, strain rates and temperatures on a range of flat Mars 300 steel specimens to calibrate both a plasticity and a fracture model. To predict the onset of fracture a stress state and strain rate-dependent Hosford–Coulomb fracture initiation model is used. Single material impact experiments are performed on targets of homogenous and perforated Mars 300 plates by accelerating cylindrical Mars 300 impactors in a single-stage gas gun. It is shown that the chosen modeling approach allows accurate modeling of the plastic response as well as the fracture patterns.
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published
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Book title
DYMAT 2018 - 12th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Journal / series
Volume
183
Pages / Article No.
1052
Publisher
EDP Sciences
Event
12th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading (DYMAT 2018)
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Organisational unit
09473 - Mohr, Dirk / Mohr, Dirk