Apr 7, 2016 · In the real world (when clamping force is important) ,a hydraulic tensioner pulls the stud/bolt and then the nut is tightened. For ordinary applications like car wheel lugs or headbolts , the manufacturer has the experience to know the torque levels to apply.

Mar 23, 2021 · Proof load is defined as the maximum tensile force that can be applied to a bolt that will not result in plastic deformation. A material must remain in its elastic region when loaded up to its proof load typically between 85-95% of the yield strength. Acceptable clamp load is typically 75% of proof load.

Jun 16, 2021 · An additional benefit (related to the reduction of stresses) is that the washer is a replaceable item. So while tightening might damage the surface of the bolt and the clamp, the use of a washer might damage the contact surface between the bolt and the washer, but at the end of the day they can both be replaced.

I'm attempting to calculate the clamping force from a u-bolt. This arises from an existing support configuration that is being re-qualified due to the installation of new equipment. I am stuck with...

May 18, 2018 · The simplest way by far is to select a prospective bolt, calculate the clamping force this creates when it is torqued to rated torque, and use the bolt circle as an approximation of the moment arm. Compare this against the rated torque spec and duty type for the gearbox. Grade 5 bolts are ordinarily adequate for industrial uses.

Oct 28, 2021 · If I have a piece of rubber between two steel plates, and four bolts (at equal preload) compressing the plates, will the total compressive force on the rubber be Preload x 4?

Dec 29, 2022 · The sheets have holes in them. Bolts are put through the holes, and nuts are tightened around the bolts, clamping the sheets together between force applied to the top and bottom of the stack. Using the torque and the bolt diameter, it is possible to calculate the clamping force of the bolt clamp force calculator

Jun 15, 2021 · The bolt elongation length is (in all likelihood ) what is referred to as Effective length in the following image Figure 1: Effective bolt length (source: ) The physical significance, is the part of the bolt that is in tension, and effectively generates the clamping force.

Dec 2, 2023 · It doesn't pull out of the nut unless the threads are badly damaged. The bolt will snap off near the nut or just at the nut. Bolts are designed to handle all the tensile strength of the bolt. There are different nuts for different grades of bolt.

Apr 26, 2021 · Their distribution is complex and indeterminate. it depends on the geometry of the clamp. the narrower it is the more principal stress is tension until ultimately it is functioning as a strap and all stress is tension, equal to the tension at …