https://padlet.com/gerardmarley111/d2irhflnetww8uxv LC Engineering en-us 2020-04-29 22:34:40 UTC 2025-12-09 13:43:16 UTC hello@padlet.com https://padlet.net/icons/png/1f529.png gerardmarley111 https://padlet.com/gerardmarley111/d2irhflnetww8uxv/wish/540505985

Test specimen held Vertical

Specimen clamped at one end

Notch faces towards hammer

167 joules 

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Test specimen held Horizontal

Specimen clamped at both ends

Notch faces away from hammer

300 joules

]]> 2020-04-29 22:40:33 UTC https://padlet.com/gerardmarley111/d2irhflnetww8uxv/wish/540509071 gerardmarley111 https://padlet.com/gerardmarley111/d2irhflnetww8uxv/wish/540510703 The ability of a material to withstand heavy blows or impact.]]> 2020-04-29 22:41:58 UTC https://padlet.com/gerardmarley111/d2irhflnetww8uxv/wish/540510703 gerardmarley111 https://padlet.com/gerardmarley111/d2irhflnetww8uxv/wish/540530801 The ability of a material to withstand abrasive wear, scratching and indentation.]]> 2020-04-29 22:59:51 UTC https://padlet.com/gerardmarley111/d2irhflnetww8uxv/wish/540530801 gerardmarley111 https://padlet.com/gerardmarley111/d2irhflnetww8uxv/wish/540531996 A material that cannot be stretched or squashed easily.

• Tensile Strength
• Compressive Strength
• Shear Strength
• Bending Strength
• Torsional Strength

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Ball indenter steel/tungsten

Diameter of indentation measured

Formula to find Brinell Hardness Number

Not suitable for very hard or very soft materials

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Square Pyramid indenter 136 degrees

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Stress = Force÷Area(CSA)

Strain = Extension÷Original Length

Young's Modulus = Stress÷Strain

UTS = MaxLoad÷CSA

ShearStrength =  ShearForce÷CSA

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Time

Temperature

Nature of the Force

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The probe is moved along the component. The pulses and echoes are shown on a Cathode Ray Tube (CRT).

If a flaw is present then the pulse will reflect off it and return in a faster time than normal. This produces a shorter blip on the screen.

This test is commonly used for forgings, castings and welds.

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