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1/28/2002
Remember:
Turn in your homework WEDNESDAY before class start.
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Failure criterions
Brittle fracture
Ductile fracture
€
τ>τcr
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σ >σ cr
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Mohr circle
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Pure bending failure
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Simple torsion failure
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SCI
Science Citation Index (SCI)
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Know a Famous Scientist project
Definition: a scientist is defined as “research famous” if his/her published paper has been cited > 150 times.
Know and build relationship with a research famous scientist in the field of Deformation and Fracture of Engineering Materials.
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Void coalescence
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Analysis of the cup-cone fracture in a round tensile bar
V. TvergaardThe Technical University of Denmark
A. NeedlemanBrown University
Acta Metallurgica, 1984
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More things to know…
1. Tensor
2. Finite element analysis
3. Void nucleation criterion, Gurson’s model
4. Element-vanish-technique
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Failure process in the neck of a round tensile specimen of copper
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Crack growth