F - Force (N)
A- cross sectional area (mm2)
A- cross sectional area - Width *thickness (single wall)
So F/2(width * thickness) (N/mm2)
For Example :-
F= 35.963 N
width = 6.35 mm (specimen width standard in finger cots)
Thickness = 0.12 mm
Calculation:-
= F/ 2(Width *Thickness) (N/mm2)
Where 2 is common factor for ring samples .
= 37.963 / 2(6.35*0.12) (N/mm2)
= 37.963 /1.524 (N/mm2)
= 24.91 (N/mm2) this is good answer for finger cots and condom Tensile strength calculation.
You stretch test specimens in a prescribed manner (ASTM) and make note of what force failure occurs. The tensile strength is that force divided by the cross-sectional area.
Ultimate Tensile Strength is the (BHN*500)
The number of Pounds per Square Inch (PSI) for the Tensile strength.
Tensile strength is determined from testing a large number of samples. Some will fail higher or lower than others, and an average strength is determined. Minimum tensile strength is usually calculated from statistics using a Weibull probability analysis. In this case the minimum tensile strength usually is reported as the Weibull A value, which is the value at which 99% will survive with 95% confidence. Weibull B, usually based on fewer samples, is the minimum value determined to survive with 90% reliability and 95 % confidence.
may be 75RHN
it is 90
Ultimate Tensile Strength is the (BHN*500)
The number of Pounds per Square Inch (PSI) for the Tensile strength.
Tensile strength is determined from testing a large number of samples. Some will fail higher or lower than others, and an average strength is determined. Minimum tensile strength is usually calculated from statistics using a Weibull probability analysis. In this case the minimum tensile strength usually is reported as the Weibull A value, which is the value at which 99% will survive with 95% confidence. Weibull B, usually based on fewer samples, is the minimum value determined to survive with 90% reliability and 95 % confidence.
It's TENSILE strength and on metric bolts it is indicated by a number.
Many High Tensile bolts will have a number of raised strokes formed in the head of the bolt. Three or five are common and usually form a reverse triangle or reverse heptagon
An atom is the smallest piece of an element that can exist. An atom does not have many of the properties of the same "bulk" element (e.g. melting point, boiling point, electrical conductivity, thermal conductivity, hardness, ductility, viscosity, lustre, color, shear strength, tensile strength, density) because to have those properties requires having a large number of atoms.
http://www.matweb.com/reference/shore-hardness.aspx
There are many strength associated with adhesive - tensile, compresive, cleavage and peal. Adhesive failure is also determined by some of these factors. When two parts are bonded, they are then tested in a number of ways in order to gather technical information. During the tests a number of results are looked at, such as Cohesion Failur - which is failure of the adhesive, Adhesion failure - which is when the adhesive breaks away from the substartes or parts glued, and finally there is substrate failure - when the material that is being bonded fails.... Hope this helps
60 represents the 60000 psi tensile strength; just need to add three zero. The third number represents the welding position; number 1 represents all positions. The last number represents the type of arc; 3 represents medium to shallow penetration ac/dcrp.
hardness of peridot 7.0 mohs.
12*10=1200 is minimum tensile strength 90% of 1200 i.e. 1200*.9=1080 is elongation yield limit units are N/mm2
"Ultimate Tensile strength", is measured as the number of Kilogram of force needed to fracture a 'unit' of Area of the material. If you choose to use the Units of Kg for the force , and the Unit of Square Cm for the area; then the answer will be in Kilogram per Square Centimetre. You will now realise that it is NOT practical to measure tensile strength of paper because paper is extremely thin and it is not possible to make a piece of paper with an area of 1cmX 1 cm. Paper is usually about one twentieth of a mm thick. However, it you cut a strip of paper exactly 1 cm wide, from a telephone book with the pages clamped very tightly together between 2 strips of wood, and the stack of strips were exactly 1 cm thick; then you would have an area of SOLID paper which would be 1 cm X 1 cm. Now hang weights on it until it breaks apart. The Tension you created on the 1 square cm would be your answer. Different types and qualities of paper will give very different results. In the same way , different types of steel have very different Tensile Strengths. Talk to an Engineer and he will explain the different between 'Ultimate' tensile strength, and 'Safe Working' tensile strength. Steel is an Elastic substance just like rubber, but it Ultimately stops stretching and breaks when its Ultimate tensile strength is reached.