MECHANICAL PROPERTIES OF SOLIDS

Question 1

UNIT OF STRESS

Answer 1

Pa OR N/m^2

Question 2

STRESS

Answer 2

FORCE/AREA

Question 3

LONGITUDINAL STRAIN

Answer 3

dL/L

Question 4

SHEARING STRAIN

Answer 4

REL DISPLACEMENT/LENGTH= TAN @~@

Question 5

HYDRAULIC STRAIN

Answer 5

dV/V

Question 6

ELASTIC LIMIT

Answer 6

WITHIN WHICH A BODY REGAINS ITS ORIGINAL CONFIGURATION AFTER REMOVAL OF EXTERNAL FORCE

Question 7

PROPORTIONAL LIMIT

Answer 7

WITHIN WHICH HOOKE’S LAW IS APPLICABLE

Question 8

HOOKE’S LAW

Answer 8

WITHIN PROPORTIONAL LIMIT STRESS DIRECTLY PROPORTIONAL TO STRAIN

Question 9

SLOPE OF STRESS STRAIN GRAPH

Answer 9

MODULUS OF ELASTICITY

Question 10

Y

Answer 10

FL/AdL

Question 11

dL OF UNIFORM WIRE DUE TO ITS OWN WEIGHT

Answer 11

Rho L^2g/2Y

Question 11

dL OF NON UNIFORM CONICAL CIRCULAR SECTION

Answer 11

FL/Y PI (R1R2)

Question 11

ANALOGY OF WIRE AS SPRING, K =

Answer 11

YA/L

Question 11

Ys

Answer 11

2Y1Y2/Y1+Y2

Question 11

Yp

Answer 11

Y1+Y2/2

Question 12

STRESS ON OBLIQUE SECTION

Answer 12

TENSILE= FCOS^2@/A
SHEAR= FSIN2@/2A

Question 13

ELASTIC POTENTIAL ENERGY STORED IN A WIRE

Answer 13

YAl^2/2L= 1/2 F l =1/2 STRESS STRAIN VOLUME

Question 14

ENERGY DENSITY OF A WIRE

Answer 14

1/2 STRESS STRAIN

Question 15

ELASTIC PE OF WIRE DUE TO ITS OWN WEIGHT

Answer 15

(Rho g)^2 A l^3/6Y

Question 16

BREAKING STRESS

Answer 16

BREAKING FORCE /AREA

Question 17

SHEAR STRESS

Answer 17

G dX/ L

Question 18

dP

Answer 18

-B dV/V

Question 19

COMPRESSABILITY

Answer 19

1/B

Question 20

POISSON’S RATIO

Answer 20

LATERAL STRAIN /LONGITUDINAL STRAIN = -dR/R/dL/L

Question 21

RELATION BETWEEN Y AND SHEAR MOD AND POISSON’S RATIO

Answer 21

Y= 2G(1 + P)

Question 22

RELATION BETWEEN Y , B AND P

Answer 22

Y=3B(1- 2P)

Question 23

RELATION BETWEEN Y, G AND B

Answer 23

y= 9GB/3B +G

Question 24

RELATION BETWEEN P, B AND G

Answer 24

P= 3B-2G/6B+2G

Question 25

DEPRESSION

Answer 25

WL^3/4YBD^3