Impact Dynamics

Course Group: 
Firepower and Protection Technologies

COURSE OVERVIEW

This 5-day course is aimed at those individuals who wish to gain an advanced understanding of impact properties of materials and structures.  In particular the first two days will examine the structure of materials and how the microstructure plays a role in enhancing its impact properties. Further, this course will detail the experimental and numerical techniques available to probe the dynamic behaviour of materials including the theory behind Split Hopkinson Pressure Bar operation and plate-impact experiments. When the course is held at the Australian Defence Force Academy, a demonstration using an instrumented drop tower and compression Split Hopkinson Pressure Bar will also be provided.

Who Should Attend

Course Outline

Presenter Background

Dates & Registration

Duration: 5 days

Delivery mode: Classroom

Locations

Advertised: Canberra

In-house: All states and neighbouring countries, contact the  for more information. Recommended for groups of 10 or more.

What you will receive:

Affiliated course: Gun Design | Advanced (4 days)

*pending final results

 


 

WHO SHOULD ATTEND

 This course is ideally aimed at individuals who hold an engineering or science degree.

 


 

COURSE OUTLINE

Materials science

Introduction to materials | The structure of materials | The mechanics of materials | Microscopy techniques | Mechanics of plasticity | Mechanics of failure

Testing techniques and equipment

The tensile test | The hardness test | The Charpy test | The instrumented drop-tower | The Split Hopkinson Pressure Bar (focussed on both compression and tension) | The plate-impact test | The dynamic extrusion test |Diagnostics (digital image correlation and high speed photography, laser-interferometry)

Stress waves and shock waves

Elastic waves | Plastic waves | Interface reflections| Rankine-Hugoniot  relationships | The Hugoniot | The Isentrope | Strength measurements under shock-wave loading | Microstructural evolution during  shock loading

Impact  mechanics

Material failure | Penetration mechanics | 19th C. theory |Milne de Marre |The Forrestal formulation |The Recht formulation| Hydrodynamic theory | Tate and Alekseevski |Worked examples

Armour mechanics

An introduction to armour | The survivability onion concept |Metallic materials for armour | Ceramic armour | Woven fabric and composite armour |Explosive Reactive Armour | Defensive Aid Suites

Blast and fragmentation

An introduction to explosives | Blast and fragmentation theory | Underwater blast | Improving resilience to blast-wave loading

Computational approaches

An introduction to hydrocodes | The equation of state | Constitutive models including Johnson-Cook, Johnson-Holmquist, Zerilli-Armstrong and MTS

Ammunition technology

Armour-piercing projectiles | Shaped charge mechanics and penetration | Explosively –formed projectiles | Fragmentation weapons | High-Explosive-Squash-Head (HESH)

 


 

PROFESSOR PAUL HAZELL

Paul has over 20 years of experience studying the impact behaviour of materials. He has recently moved to Canberra, Australia from the UK to take up the post of Professor of Impact Dynamics at UNSW Canberra. Before taking this position he was Head of the Centre for Ordnance Science and Technology at Cranfield University’s Shrivenham campus (at the UK Defence Academy). He has published extensively, appeared in several documentaries and presented his research work at numerous symposia. He has published two books on protection technologies with the most recent called ‘ARMOUR: Materials, Theory, and Design’ (CRC Press). 

 

DR J. PABLO ESCOBEDO

Dr J. Pablo Escobedo has over 7 years of experience in the area of dynamic behaviour of materials with emphasis on microstructural evolution and its effects on mechanical response. After obtaining his PhD he worked in premier institutions in the USA focused on the impact behaviour of materials (Institute for Shock Physics and Los Alamos National Laboratory) before joining UNSW in August 2013.  He has published extensively in the area and received a TMS-Young Leader award in 2014.

 

 

 

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COURSE AVAILABILITY