The statement of Griffith theory of brittle fracture says that A crac – McqOptions

MCQOPTIONS

1.	The statement of Griffith theory of brittle fracture says that A crack will propagate when the decrease in elastic strain energy is at least equal to the energy required to create the new surface .
A.	True
B.	false
Answer» B. false

Discussion

No Comment Found

Related MCQs

The sensitivity of the fracture of the brittle solid to surface condition has been termed as the ____________
Griffith s theory for a thick plate predicts the fracture as_________
If the crack length inside the material is increased by 4 times. The fracture strength will ___________
The statement of Griffith theory of brittle fracture says that A crack will propagate when the decrease in elastic strain energy is at least equal to the energy required to create the new surface .
Calculate the fracture stress of brittle material with the following properties.<br>E=200GPa, Surface energy=1.2 Jm<sup>-2</sup>, c=0.5*10<sup>3</sup>nm
The fracture on the sharpest crack tip will be equal to (( frac{E _s}{4c})^{1/2} ) .
The maximum stress on the tip of the crack of length 2c and radius of curvature of the tip <sub>t</sub> is given as ____
Determine the cohesive strength of glass fibre, if E = 90 GPa, Surface energy = 1.2 Jm<sup>-1/2</sup> and a<sub>0</sub>=0.18 nm?
The theoretical cohesive strength of brittle material is approximately equal to ________