- #1
Altairs
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Reference is to the formula for stress intensity factor :
K_I(mode I) = beta*nominal stress*(pi*crack dimension)^1/2
now the question is that
1.ductile:
if I use the value of fracture toughness K_c in place of K_I and yield strength in place of nominal stress what will the value of crack dimension signify ? Does this mean that both yielding and fracture occurs at same time ?
2.ductile:
if I use the value of fracture toughness K_c in place of K_I and ultimate strength in place of nominal stress what will the value of crack dimension signify ?
3.brittle
if I use the value of fracture toughness K_c in place of K_I and ultimate strength in place of nominal stress what will the value of crack dimension signify ?
please explain. I am getting all these things mixed up.
thx
K_I(mode I) = beta*nominal stress*(pi*crack dimension)^1/2
now the question is that
1.ductile:
if I use the value of fracture toughness K_c in place of K_I and yield strength in place of nominal stress what will the value of crack dimension signify ? Does this mean that both yielding and fracture occurs at same time ?
2.ductile:
if I use the value of fracture toughness K_c in place of K_I and ultimate strength in place of nominal stress what will the value of crack dimension signify ?
3.brittle
if I use the value of fracture toughness K_c in place of K_I and ultimate strength in place of nominal stress what will the value of crack dimension signify ?
please explain. I am getting all these things mixed up.
thx