1/28/2002 remember: turn in your homework wednesday before class start
TRANSCRIPT
1/28/2002
Remember:
Turn in your homework WEDNESDAY before class start.
Failure criterions
Brittle fracture
Ductile fracture
€
τ>τcr
€
σ >σ cr
Mohr circle
Pure bending failure
Simple torsion failure
SCI
Science Citation Index (SCI)
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.
Void coalescence
Analysis of the cup-cone fracture in a round tensile bar
V. TvergaardThe Technical University of Denmark
A. NeedlemanBrown University
Acta Metallurgica, 1984
More things to know…
1. Tensor
2. Finite element analysis
3. Void nucleation criterion, Gurson’s model
4. Element-vanish-technique
Failure process in the neck of a round tensile specimen of copper
Crack growth