Fracture toughness does not depend upon geometry of the part containin

1.	Fracture toughness does not depend upon geometry of the part containing crack
A.	True
B.	False
Answer» C.

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A_CURVED_BEAM_WITH_ECCENTRICITY_0.02D_IS_LOADED_WITH_1KN.CENTROIDAL_RADIUS=4D_AND_INNER_AND_OUTER_RADII_ARE_3.5D_AND_4.5D_RESPECTIVELY._AREA_OF_CROSS_SECTION_IS_0.8D¬¨¬®‚ÄÖ√¢¬ß._FIND_THE_DIMENSION_D_IF_ALLOWABLE_STRESS_IS_110N/MM¬¨¬®‚ÄÖ√¢¬ß_AND_CONSIDERING_ONLY_DIRECT_TENSILE_STRESS.?$#
If a hollow steel tube is heated from a temperature of 25‚Äö√Ñ√∂‚àö√ë‚àö¬•C to 250‚Äö√Ñ√∂‚àö√ë‚àö¬•C then fid the expansion of tube if area of the cross section is 300mm¬¨¬®‚Äö√¢¬ß,length of tube=200mm and coefficient of thermal expansion is 10.8 x 10‚Äö√Ñ√∂‚àö√ñ¬¨‚Ñ¢‚Äö√Ñ√∂‚àö√ñ‚Äö√†√á per ‚Äö√Ñ√∂‚àö√ñ‚Äö√†√ªC.$#
A_curved_beam_with_eccentricity_0.02D_is_loaded_with_1kN.Centroidal_radius=4D_and_inner_and_outer_radii_are_3.5D_and_4.5D_respectively._Area_of_cross_section_is_0.8D¬¨¬®‚Äö√¢¬ß._Find_the_dimension_D_if_allowable_stress_is_110N/mm¬¨¬®‚Äö√¢¬ß_and_considering_combined_effect_of_direct_stress_and_bending_stress.$#
Residual stresses are always added in the load stresses and hence are always harmful.
All type of stresses vanishes after as soon as the applied load is removed.

Fracture toughness does not depend upon geometry of the part containing crack

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