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ME 4733 Deformation and Fracture of Engineering Materials Instructor: Dr. Honglai Tan

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Presentation on theme: "ME 4733 Deformation and Fracture of Engineering Materials Instructor: Dr. Honglai Tan"— Presentation transcript:

1 ME 4733 Deformation and Fracture of Engineering Materials Instructor: Dr. Honglai Tan

2 Explosive cracking simulation H. Tan, CSAFE annual report, 2001 Center for the Simulation of Accidental Fires and Explosions

3 Explosive cracking experiment P.M. Dickson et al., Los Alamos National Laboratories Ignition of PBX 9501 after first heated to 200°C in around one hour and then ignited by hot wire at the center.

4 Impact Ignition and Explosion J. Guilkey, T. Harman, H. Tan, University of Utah B. Kashiwa, Los Alamos National Lab

5 Brown University Nano & micromechanics Laboratory

6 Course Outline

7 Stress-strain curve

8 Necking

9 Fatigue Fracture Cyclic stress

10 Case study: how the World Trade Center fell The design of the WTC saved thousands of lives by standing for well over an hour after the planes crashed into its twin towers. High temperature for buckling and collapsing.

11 Multiscale thinking D. Raabe Computational Materials Science 1998

12 After class reading Hertsburg Course webpage


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