Fastener Withdrawal Testing
The Fastener Withdrawal Testing measures the force required to withdraw a fastener from a stringer or block component of a pallet. It determines the force required for a pallet connection to fail due to force parallel to the axis of the fastener.
Fasteners are measured by length and width of the shank, angle and type of the thread, shape and size of the head. And, fasteners are tested for how much force it takes to bend them, and how much force it takes to pull them out after they’ve been driven into any particular substance (wood, metal, plaster, etc…). The more force that it takes to bend or pull the fastener, the stronger that fastener is, which in turn leads to a stronger finished product.
Fastener Withdrawal Testing Videos:
Equipment used for Fastener Withdrawal Testing:
MTS 7940: Labview software
Force Rating: 20,000lbs
Speed: 20″ per minute
Load Cells: 1,000lbs, 5,000lbs, 20,000lbs
Type of Mechanical Tests: tension, compression, cyclic, and fracture
MTS 322: Flextest 40 Software
Force Rating: 50,000lbs
Speed: 20″ per minute
Load Cells: 5,000lbs and 10,000lbs
Type of Mechanical Tests: tension, compression, cyclic, and fracture
MTS 10/GL: Testworks 4 Software
Force Rating: 10,000lbs
Speed: 20″ per minute
Load Cells: 200lbs, 1,000lbs, 10,000lbs
Type of Mechanical Tests: tension, compression, and fracture