The Health And Exercise Blog

Handle Strength

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Exercise Red Handle Strength Grip Hand Gripper Pair    US $10.61

Fitness Exercise Orange Handle Strength Hand Grips Pair    US $9.07

Gray Yellow Foam Coated Handle Strength Hand Grippers    US $8.17

Wrist Strength Training Yellow Plastic Coated Handle Metal Hand Grips Pair    US $8.43

Red Foam Coated Handle Muscle Strength Push Up Stand    US $26.22

NEW Soft Handled Hand Grips forearm hand finger grip strength developers PAIR    US $9.95

2 Pcs Orange Foam Coated Handle Strength Hand Gripper    US $9.09

2 Pcs Strength Training Non slip Handle Pushup Bar Stand    US $20.30

Padded Handle Push Up Bars Strength Traning Exercise    US $13.03

2 Pcs Wrist Strength Training Red Plastic Coated Handle Hand Grips    US $8.39

Wood Handle 5 Springs Strength Training Chest Expander    US $23.00

Handle PUSH UP Stands BARS Muscle Strength Fitness Training Exercise    US $23.99

Foam Handle Fitness Strength Hand Gripper Gray Yellow    US $9.19

Wrist Strength Training Green Foam Wrapped Handle Metal Hand Grip    US $5.83

Foam Wrapped Handle Fitness Strength Training Hand Gripper Green    US $6.71

Blue Foam Plastic Handle Strength Training Hand Grips    US $10.16

Pair Blk Foam Coated Handle Strength Training Hand Grip    US $10.16

Blue Plastic Handle Wrist Strength Training Hand Grips    US $8.68

Training Foam Handle Wrist Arm Strength Hand Gripper    US $8.92

Exercise Black Red Foam Handle Strength Hand Grippers    US $9.92

New Marcy Strength Training Stepper w Balance Handle    US $89.99

Golf Advice

How do you test the strength of plastic?

For my product study in design technology at college I have to design and make a 'test rig' to test the strength and durability of plastic.
What's the best way to do this?
My product is screwdrivers, it's going to have a plastic handle.. what are some suitable plastics to test?

For a scredriver handle, I would think that some of the more important characteristics would be impact strength, stiffness and abrasion restance. If you were doing this for a real product and company, you would have real equipment to test all of these.

If you need to come-up with a simple way to test these properties, you could rig a few things to measure the sample properties. Stiffness could be measured by using a two point bend or deflection under a certain load. You just make bars of each material to the same dimension and suspend between two points. You then apply different loads to the center and measure the amount of deflection. Impact strength could be done in a similar way except you apply an increasing heavier load at a fast rate until you see differences in how they break. Abrasion is pretty easy to do except you just have to make sure that your have a way to consistently apply the abrasion. Results would be more visual.

As for which types of plastic to try, you could would go with maybe a couple different types of nylon, high density polyethylene, PVC, polycarbonate and a cured urethane or epoxy.

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