The point of contraflexure in a beam is at the location where the -

[Dnyan Deshmukh]

The point of contraflexure in a beam is at the location where the -

(a) Deflection changes sign

(b) Beam develops crack

(c) Radius of curvature changes sign

(d) Shear force is maximum.

The correct Answer Is
(c) Radius of curvature changes sign

 

[abhishek govil]

radius of curvature changes sign

 

[abhishek govil]

radius of curvature change sign

 

[Rishabhdev Sharma]

The point of contraflexure in a beam is at the location where the -

(a) Deflection changes sign

(b) Beam develops crack

(c) Radius of curvature changes sign

(d) Shear force is maximum.

Am not sure abt the answer I think it's (a)

 

[Rishabhdev Sharma]

The point of contraflexure in a beam is at the location where the -

(a) Deflection changes sign

(b) Beam develops crack

(c) Radius of curvature changes sign

(d) Shear force is maximum.

Ohh thanks for answering..

 

[Nivetha Manoharan]

The point of contraflexure in a beam is at the location where the -

(a) Deflection changes sign

(b) Beam develops crack

(c) Radius of curvature changes sign

(d) Shear force is maximum.

Shear force is maximum

 

[Rishabhdev Sharma]

Shear force is maximum

Okk thanks for answering

 

[BALRAJ]

According to my thought

when deflection changes it's sign in beam / radius of curvature changes it's sign in beam / shear force is in maximum at beam.
in all the above cases point of contraflexure will be occur.
but when a beam develops a crack the point of contraflexure is may be/may not be occur cause when a beam develops a crack Bending moment diagram will be the same but stress distribution at the cross section of the beam will be changed, but in statically indetermined system the reactions can be changed
its depends on what the location of the load/bending moment in the cross section of the beam
so the answer is may be/may not be cause the effect of the presences of crack only on the distribution of the stress in beam.

if my thought is wrong kindly inform me with correct thought

 

[Kk sah]

A

 

[Sharman]

The point of contraflexure in a beam is at the location where the -


(c) Radius of curvature changes sign

 

[bahetishubham]

I think it is the point where BM changes sign?????

 

[rahulkhatkar]

The correct Answer Is
(c) Radius of curvature changes sign