- Why pieces of cast iron can not be bent? What are the properties that the material should have in order to be bent?
- Give examples of situations where the material is subjected to tensile, compression and shear stress.
- Classify the materials; lead, rubber, steel, and concrete under headings elastic, plastic, and brittle.
Saturday, October 1, 2011
Module # 2 - Activity # 1
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- cast iron cannot be bent, because they have no ductility and cannot be formed by bending, pulling or drawing forces.
- Tensile force is a pulling force as illustrated in Fig, A compressive force is a pushing force, Shear force is a cutting force as illustrated in Fig.
- lead is metal material Castability, rubber is non-metal, steel is metal and malleability,concrete under headings elastic non-metal, plastic is non-metal and Re-formability, brittle is non-metal
Hardness Metal name
1st(hardest) Steel
2nd aluminum
3rd brass
4th(least hardest) copper
cast iron cannot be bent, because they have no ductility and cannot be formed by bending, pulling or drawing forces.
-the cast iron cannot be bent, because they have no ductility and cannot be formed by bending.
-the tensile force is a pulling force as illustrated in Fig, A compressive force is a pushing force.
-And the lead is metal material Cast ability, rubber is non-metal, steel is metal and ,brittle is non-metal, plastic is non-metal and Re-form ability.
1 - because it have brittel
2 - pulling a broking car - pushing an air plane - the board that the tentien rob is on
3 - elastic (rabber) plastic (steel - lead) brittle (concrete)
1-first one we cant bent it because it's is brittle.
2-the second is pulling and pusshing.
3-plastic (steel) elastic (rubber) brittle(concrete)
- cast iron cannot be bent, because they have no ductility and cannot be formed by bending, pulling or drawing forces.
- Tensile force is a pulling force as illustrated in Fig, A compressive force is a pushing force, Shear force is a cutting force as illustrated in Fig.
- lead is metal material Castability, rubber is non-metal, steel is metal and malleability,concrete under headings elastic non-metal, plastic is non-metal and Re-formability, brittle is non-meta
Hardness Metal name
1.(hardest) Steel
2.aluminum
3.brass
4.(least hardest) copper
1-first one we cant bent it because it's is brittle.
2-the second is pulling and pusshing.
3-plastic (steel) elastic (rubber) brittle(concrete)
1-Why pieces of cast iron cannot be bent?
" Because cast iron is brittle ".
2-What are the properties that the material should have in order to be bent?
" It should be ductile ".
3-Classify the materials; lead, rubber, steel, and concrete under headings elastic, plastic, and brittle.
"Malleability Metal name
1st (most malleable) Copper
2nd Aluminum
3rd Steel
4th (least malleable) Brass
1-Why pieces of cast iron cannot be bent?
" Because cast iron is brittle ".
2-What are the properties that the material should have in order to be bent?
" It should be ductile ".
3-Classify the materials; lead, rubber, steel, and concrete under headings elastic, plastic, and brittle.
"Malleability Metal name
1st (most malleable) Copper
2nd Aluminum
3rd Steel
4th (least malleable) Brass
the hand file cant cut steel because it is hardest metal and maybe well not cutting or scratching But the hand file can cutting the brass and the copper and the AL.
1-first one we cant bent it because it's is brittle.
2-the second is pulling and pusshing.
3-plastic (steel) elastic (rubber) brittle(concrete)
SAIF KHALID ALMATROOSHY - 11.07
1.Because it have brittle...
2. Pulling A broking car,pushing an air plane...
3. plastic (steel) elastic (rubber) brittle(concrete)...
- we cant bent it because it's is brittle material.
- pulling a broking car - pushing an air plane - the board that the tentien rob is on.
- Tensile force is a pulling force as illustrated in Fig, A compressive force is a pushing force, Shear force is a cutting force as illustrated in Fig.
- lead is metal material Castability, rubber is non-metal, steel is metal and malleability,concrete under headings elastic non-metal, plastic is non-metal and Re-formability, brittle is non-metal
1.Why pieces of cast iron cannot be bent?
cast iron is brittle.
2.What are the properties that the material should have in order to be bent?
should be ductile.
the EX is one car is pulling another car,
3.Classify the materials; lead, rubber, steel, and concrete under headings elastic, plastic, and brittle.
lead is plastic.
rubber is elastic.
steel is plastic.
concrete is brittle.
1 - because it have brittel
2-the second is pulling and pusshing.
3-plastic (steel) elastic (rubber) brittle(concrete)
1.Because its a brittle metal..
2.should be ductile.
3.
steel is plastic.
rubber is elastic.
lead is plastic.
concrete is brittle.
1 - because it have brittel
2 - pulling a broking car - pushing an air plane - the board that the tentien rob is on
3 - elastic (rabber) plastic (steel - lead) brittle (concrete)
1-the cast iron cannot be bent
2- tensile force is a pulling
A compressive force is a pushing
A shear force is a cutting
3- elastic -rubber
plastic -steel, lead
brittle concrete
Cast iron can't be bent, because the have no ductility and can't be formed by bending.
Tensile force is a pulling force.
Compressive force is a pushing force.
Shear force is a cutting force.
Lead is a soft, malleable poor metal.
Rubber is elastic.
Steel is an alloy that consists mostly of iron and has carbon.
concrete under headings elastic is non-metal.
plastic has malleability and plasticity.
brittle materials include most ceramics and glasses
- because it have brittle.
- What are the properties that the material should have in order to be bent?
should be ductile.
-Hardness Metal name
(hardest) Steel
aluminum
brass
(least hardest) copper
1-Why pieces of cast iron cannot be bent?
" Because cast iron is brittle ".
2.What are the properties that the material should have in order to be bent?
should be ductile.
3.steel is plastic.
rubber is elastic.
lead is plastic.
concrete is brittle.
1.What are the properties that the material should have in order to be bent?
should be ductile.
2.What are the properties that the material should have in order to be bent?
should be ductile.
3.steel is plastic.
rubber is elastic.
lead is plastic.
concrete is brittle.
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