7/23/2019 2015- 15CD 002- Advanced Mechanics of Materials PII

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Department of Mechanical Engineering M.E. (CAD)

I Semester

15CD002 Advanced Mechanics of Materials Second Series Test

Time: 1.3hrs. Date: 11.1.!1" Ma#. Mar$s: " Mar$s

PART-A (9 2 ! 1" #ar$s%

Ans&er A'' )estions

1. %hat is stress tensor&

!. Define 'oo$s a*.

3. %hat +o, meant -+ plane stress conition&

/. %hen *e ha0e o select the plane strain conition&

". Define Strain.

. Dra* the stress2strain c,r0e for mil steel specimen an specif+ the important

point on the c,r0e.

. %hat o +o, meant -+ -o,nar+ conitions&

4. %hat is Air+s stress f,nction&

5. %rite the generali6e 'oo$s la* for orthotropic material.

PART-7 (2 1* ! +2 #ar$s%

Ans&er A'' )estions

1. (i) Dri0e the relation of ifferential e8,ations of e8,ili-ri,m for a three imensional-o+.ii. The stress fiel *ithin an elastic str,ct,ral mem-er is e#presse as

follo*s:

Determine the -o+ force istri-,tion re8,ire for e8,ili-ri,m.

9r

11. The stress components at a point in a plate are ## ; 21 M