Bolt Load Calculator Please note that the above data is based on bolts lubricated to manufacturer’s spec. Caution. Hydraulics. Use to determine Torque, Bolt Load and Percent Yield of Maximum Load of Bolts. 5) Calculate torsional shear force (Fm) Too much clamping force can also cause severe problems. K – constant d – diameter of bolt (m, in) F – axial bolt force or load (N, lb) F t,Ed is the applied tensile load and F t,Rd is the tension resistance of the bolt. Open --> Bolt Preload Tension Force Calculator. After calculating the torque, ensure the bolts are not over-stretching and exceeding their yield strength, or some predetermined design stress. Bearing strength of bolts. As a reality check if we approximate to a cross sectional area of 7 mm 2 and a load of 1000 N that gives a tensile stress of 140 MPa which is below yield even for low tensile steels.. BOLT ULTIMATE STRENGTH CALCULATORS. Single. Bolt Load Calculation Software Hydratight introduces Informate: the next generation of software that provides bolt loads and tool pressures on a huge range of flanged joints and clamped connections. 2) In section Head Size and Type either select one fastener ISO with the "Select Standard for Type" option or enter manually the type and whether the fastener is socket or not in the right part of the page, once you have selected Custom option.. 3) Enter strength class of the fastener. kN. joined by a bolted joint. Tension tooling, powertrain couplings, and accessories designed for power generation applications. Torque window, displays torque and defines coefficient of friction Load Graph window, displays bolt stress over a 3 stage time period BTS TAKES THE COMPLEXITY OUT OF BOLT TIGHTENING CALCULATION. pressure wax as supplied on high strength nuts) = .10, hot dip galvanized = .25, and plain non-plated bolts … RE: ASME flange calculations design bolt load Vs. applied bolt load … the bolt load is transferred from the Tensioner to the joints hexagon or round nuts. Force = Bolt Load = ? Metric bolt grades and strength calculator to show proof strength, tensile strength, Vickers / Brinell hardness, minimum breaking torque and stress area of metric bolts and screws made of carbon steel and alloy steel with designations 4.6, 4.8, 5.8, 8.8, 9.8, 10.9 and 12.9. Bolt Torque Calculator; US Bolts - Tensile Strength and Proof Loads ; Proof Load. The calculation makes enables graphical representation of load-extension diagrams and scale drawings. Gross Area. in.) Calculation Basis SR1 Software calculates, in accordance with VDI 2230, high-stress bolted joints with concentric or eccentric strain and load. That figure is about right for a low tensile bolt. BoltUP - Our online bolt load calculator; Informate - Our advanced calculation and procedure software; IDMS Integrity Data Management System - The complete package for managing Bolted Joints from cradle to grave. Note: tensile axial forces (Fa) applied to the joint will reduce the slip load. Results are in Newtons. The minimum required bolt load divided by the number of bolts in the flange will determine the minimum f, or force, needed to use the torque equation. We provide it as a resource for our customers, because the weight of a bolt or assembly is often needed when calculating shipping costs, or jobsite delivery requirements. To download BoltUp, or for a free 7 day trial of the Informate bolt load calculation software go to: joint-integrity.com. Quick Input Quick input provides input of all data in only one dialogue window. With too little clamping force, the joint may loosen. The The calculator is generic an can used for imperial and metric units as long as the use of units are consistent. mm. Finding Tension Loads on Fastener Group This procedure is similar to the shear load determination, except that the centroid of the fastener group may not be the geometric centroid. Submit. Learn More. A t = Tensile Shear Area of Bolt S p = Proof Load of Bolt (or some percentage less than 100% of yield load of bolt, typically 85 % of yield S y) c = 0.75 For connections requiring reuse c = 0.89 For permanent connections . The preferred bolt preload for structural applications should be at least 75% of the fastener's proof load for the higher strength fasteners and as high as 90% of the proof load for permanent fasteners. In the continuation, the paper briefly presents the model for operating bolt load calculation and the method for the calculation of structure elasticity and stiffness matrices and presents a comparative analysis of the results obtained through different calculations and measurements. 2. Area = Tensile Stress Area = 0.6057 sq.in (For 1” bolt from ASME PCC-1) Force (Bolt Load) = 105000 X 0.6057 = 63598.5 lb Kindly confirm if this can be used to calculate bolt load before using T=KFD to calculate the torque value K values: waxed (e.g. Try this bolt pattern force distribution calculator, which allows for applied forces to be distributed over bolts in a pattern. Accuracy. Explore the possibilities. Proof load is defined as the maximum tensile force that can be applied to a bolt that will not result in plastic deformation. Calculate bolt design stress and design load from bolt diameter and yield stress or proof stress. 2. Proper amount of tensioning of the bolts is vital. Tensioning sequence information. By over-tightening the bolt, one may exceed the proof load of the bolt. Email * Website. Bolt Torque Calculator. 1) Enter thread diameter nominal value in section Thread Size.Click on info button for more info. Due to a variation in friction we recommend in extreme cases to check with the bolt manufacturer, as this chart represents a guideline only. Instrumentation. is calculated by arbitrarily assuming usable bolt strength is 75% of bolt proof load (psi) times tensile stress area (sq. Clamp load is also known as preload or initial load in tension on bolt. Connection Calculator Provides users with a web-based approach to calculating capacities for single bolts, nails, lag screws and wood screws per the 2015 NDS . This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. Thanks a lot for your clarifications. The Bolt load loss is a direct loss of stud elongation, this is due to many different factors, such as thread deflections, radial expansion of the nut and ‘bedding in’ of Features the Indikon product line of legacy torque and vibration measuring devices. Shear Capacity at 160N/mm THREADS IN SHEAR PLANE. Bolt Load Capacity Tables To BS5950 Part 1. The lower calculation table considers simulaneous axial (Fa) and shear … Bolt Stress window, displays bolt stress, bolt load and % of bolt yield. Both lateral (single and double shear) and withdrawal capacities can be determined. To solve bolting groups in general: 1) Find the bolt group centroid 2) Determine directional vectors for each bolt with distance Rn 3) Calculate direct shear load for both the weight and applied load (Fv) 4) Calculate Reaction Moment (M) at the bolt group centroid. Tensile Capacity at 195N/mm. If the joint is exposed to cyclical loads, too little clamping force can shorten the bolt’s fatigue life. EZ Calc - Bolting Calculator, Enerteq's oline tool for estimating Required Torque Values. The calculator below can be used to calculate the torque required to achieve a given axial bolt force or load. COMMITTED TO SUSTAINABLE PRODUCTIVITY Boltplus Bolt Load Calculation is a free app and what makes it different from similar apps on the market is the speed, ease of use and ability to save all the calculations against a project. The bearing resistance of the bolt F b,Rd should be verified against the applied shear load F v,Ed in accordance with EN1993-1-8 Table 3.4: Definition of the algorithm But also the possibility to make a request for a special tensioner or enquire about your selections directly in the app. The load will vary for each bolt. 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