Mechanics in Engineering ›› 2004, Vol. 26 ›› Issue (2): 0-0.doi: 10.6052/1000-0992-2003-087
• Education Study •
Under different stress states,
the physical mechanisms of the process of fractures can be different.
Traction facture occurs when brittle materials are subject to traction, and
shearing fracture occurs when they are subject to pressure, which are two
kinds of fracture patterns with different physical mechanisms. The Mohr's
strength theory uses only one fracture condition, which is questionable.
This problem is studied in combining with
fracture damage tests of grey cast iron HT200 materials.
The results indicate that Mohr's theory can
not rationally predict the strength of material fractures in the state of
Mohr's theory, fracture mechanism, traction fracture,
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