Penetration Modeling with LS-DYNA®
Instructors
- Dr. Len Schwer
- Paul Du Bois
Price
- $400
- $200 for students
What's Included
- Two days of instruction
- Class notes
- Thirty-day demo license
- Continental breakfasts
- Lunches
- One class dinner
Penetration Modeling with LS-DYNA®
Prerequisites
- You should be familiar with LS-DYNA.
- We strongly recommend taking the class "Methods & Modeling Techniques: Prerequisites for Blast & Penetration Simulation."
Syllabus
LS-DYNA is well suited for simulating penetration events. With LS-DYNA, you can simulate high energy events, such as penetration and perforation, using any combination of Lagrange, Eulerian (MM-ALE) and Meshfree methods. These high energy events are typically associated with large deformations, damage, and failure both on the material and structural level. During the past decade successful modeling of such damage and failure has moved steadily from a ‘Black Art’ to a widely accepted engineering practice.
In this class, we focus on using LS-DYNA to simulate high energy events. We illustrate the analysis methods (and modeling) through case studies. We also emphasize modeling techniques. To do this, we give:
- guidelines for which technique(s) to select,
- insights into which techniques work well, and
- when possible, pitfalls in modeling choice selections.
We present enough mathematical theory for each technique for you to confidently and appropriately apply them. However, this training class is not a substitute for the in-depth treatments presented in the associated LS-DYNA training classes, meaning ALE/Eulerian & Fluid Structure Interaction, Advanced ALE, and Smoothed Particle Hydrodynamics in LS-DYNA.
Content
Day 1
- Opening Remarks (Len)
- Introduction to Penetration Mechanics – Erosion Techniques (Len)
-
Constitutive, Failure, & Damage Modeling:
- Metals – Johnson-Cook Model – Parameter Identification (Len)
- Damage & Failure Modeling for Metals (Paul)
- Damage & Failure Modeling for UD Composites (Paul)
- Equations-of-State for Metals (Paul)
- Concrete & Geomaterials – Simplified Input Concrete Models (Len)
Day 2
- Explosively Formed Projectiles & Shaped Charges (Paul)
- Smooth Particle Hydrodynamics (SPH) — A Primer (Len)
- SPH workshop with Plate Perforation Comparison of SPH & MM-ALE (Len)
- Penetration Workshop — Embedded Projectile Detonation (Paul)