Stress intensity factor is the critical value of stress at which crack

1.	Stress intensity factor is the critical value of stress at which crack extension occurs.
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.?$#
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A_curved_beam_with_eccentricity_0.02D_is_loaded_with_1kN.Centroidal_radius=4D_and_inner_and_outer_radii_are_3.5D_and_4.5D_respectively._Area_of_cross_section_is_0.8D¬¨¬®‚Äö√¢¬ß._Find_the_dimension_D_if_allowable_stress_is_110N/mm¬¨¬®‚Äö√¢¬ß_and_considering_combined_effect_of_direct_stress_and_bending_stress.$#
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.

Stress intensity factor is the critical value of stress at which crack extension occurs.

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