Higher or lower values of clamp load can be used depending on the application require- Calculate bolt design stress and design load from bolt diameter and yield stress or proof stress. 2. Date :-01.01.2003. This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. Bolt load is calculated from the design stress (SAE, ISO or ASME), bolt size (UNC, UNF, BSW or ISO) and the tensile area (ANSI or ISO threads). Accuracy. Caution. pressure wax as supplied on high strength nuts) = .10, hot dip galvanized = .25, and plain non-plated bolts … Selecting “Auto Spacer” from the Spacer drop down menu, allows the software to calculate a suitable spacer thick-ness based on a target Load Transfer Factor (Note the lowest LTF when using bolt tensioning tools is 1.15). Shear Capacity at 160N/mm THREADS IN SHEAR PLANE. 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 . BOLT ULTIMATE STRENGTH CALCULATORS. is calculated by arbitrarily assuming usable bolt strength is 75% of bolt proof load (psi) times tensile stress area (sq. Bolt Load Capacity Tables To BS5950 Part 1. Tensile Capacity at 195N/mm. in.) Definition of the algorithm COMMITTED TO SUSTAINABLE PRODUCTIVITY If the joint is exposed to cyclical loads, too little clamping force can shorten the bolt’s fatigue life. F v,Ed is the applied shear load and F v,Rd is the shear resistance of the bolt. See also this calculator and this table. BOLT LOAD CAPACITY TABLES TO BS5950 PART 1, 2000 THE ULTIMATE LIMIT STATE (ie FACTORED APPLIED LOADS) GRADE 4.6 BOLTS In Grade 43, bearing capacity = 460N/mm, for e 2d. from precision medical instruments to high-performance robotic solutions, FUTEK products are designed to work in the most demanding environments — even on Mars. The calculation makes enables graphical representation of load-extension diagrams and scale drawings. Tightening torque to preload a bolt Metric thread : M1 M1.2 M1.6 M2 M3 M4 M5 M6 M8 M10 M12 M14 M16 M20 M24 M30 M36 M42 - 3.6 4.6 4.8 5.6 5.8 6.8 8.8 9.8 10.9 12.9 the bolt load is transferred from the Tensioner to the joints hexagon or round nuts. Clamp load (lb.) Proof load is defined as the maximum tensile force that can be applied to a bolt that will not result in plastic deformation. After calculating the torque, ensure the bolts are not over-stretching and exceeding their yield strength, or some predetermined design stress. Informate’s bolt load values are independently verified to ensure leak-free joints, every time. Single. The lower calculation table considers simulaneous axial (Fa) and shear … 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. The calculator below can be used to calculate the torque required to achieve a given axial bolt force or load. Submit. 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. Values calculated using industry accepted formula T = KDP where T = Torque, K = torque coefficient (dimensionless), D = nominal diameter (inches), P = bolt clamp load, lb. Tension elements: Elongation due to axial load Calculator: Calculates elongation (as well as stress and strain) for prismatic elements subject to axial force.. Wood tension element capacity Calculator: Calculates capacity of a wood tension element based on allowable tension on net area (reduced by bolt holes) and, if desired, row and group tear-out. Bolt Stress window, displays bolt stress, bolt load and % of bolt yield. 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. Bolt Torque Calculator; US Bolts - Tensile Strength and Proof Loads ; Proof Load. Name * First. F t,Ed is the applied tensile load and F t,Rd is the tension resistance of the bolt. Pb = Bolt axial load resulting from yield, ultimate or joint separation load V = Bolt shear load resulting from limit load ... the calculation of the maximum and minimum preloads: (a) The maximum and minimum torques of the specified torque-range plus any prevailing torque (Tmax, Tmin and Tp). Gross Area. An example verification calculation is provided in Fig 4 for a steel plate 1m diameter and 20mm thick impacted by a mass of 0.253kg at 6.581m/s using CalQlata's Plates calculator. kN. 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: Bolt Load Calculator. 5) Calculate torsional shear force (Fm) Features the Indikon product line of legacy torque and vibration measuring devices. Both lateral (single and double shear) and withdrawal capacities can be determined. Bolt Load Calculator Please note that the above data is based on bolts lubricated to manufacturer’s spec. Open --> Bolt Preload Tension Force Calculator. Tension tooling, powertrain couplings, and accessories designed for power generation applications. 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 Last. Bolt Torque Calculator. 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. Explore the possibilities. 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. Email * Website. 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. Thanks a lot for your clarifications. Too much clamping force can also cause severe problems. Bearing strength of bolts. 1) Enter thread diameter nominal value in section Thread Size.Click on info button for more info. 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. Use to determine Torque, Bolt Load and Percent Yield of Maximum Load of Bolts. 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. 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. This uses the equations from ANSI B1 1-1974 and B18.3.1-1978 which calculates the area carrying the tensile load from the mean of the pitch diameter and the minor diameter. Force = Bolt Load = ? Note: tensile axial forces (Fa) applied to the joint will reduce the slip load. K – constant d – diameter of bolt (m, in) F – axial bolt force or load (N, lb) About this Calculator What is it for? K values: waxed (e.g. By over-tightening the bolt, one may exceed the proof load of the bolt. 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. 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. To achieve the benefits of the preloading, the clamping force must be higher than the joint separation load. Results are in Newtons. RE: ASME flange calculations design bolt load Vs. applied bolt load … Actually what I do not understand in ASME is that the bolt load used for design seems different from the true bolt load (as the one I describe just above). joined by a bolted joint. The Calculators below can be to calculate the ultimate (breaking) load of bolts. Try this bolt pattern force distribution calculator, which allows for applied forces to be distributed over bolts in a pattern. 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 . Product Lines. 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.. Due to a variation in friction we recommend in extreme cases to check with the bolt manufacturer, as this chart represents a guideline only. That figure is about right for a low tensile bolt. mm. 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. 2. With too little clamping force, the joint may loosen. EZ Calc - Bolting Calculator, Enerteq's oline tool for estimating Required Torque Values. Hydraulics. The load will vary for each bolt. The accuracy of all calculations performed in the shock load calculator is … 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 Proper amount of tensioning of the bolts is vital. Step 1 - Enter Information. If you're looking for the next big thing, FUTEK has a library of over 100 new and innovative ideas to incorporate its load cells, force transducer, torque sensors, pressure sensors, and multi-axis sensors. Tensioning sequence information. of threaded section of each bolt size. Clamp load is also known as preload or initial load in tension on bolt. A material must remain in its elastic region when loaded up to its proof load typically between 85-95% of the yield strength. Calculation Basis SR1 Software calculates, in accordance with VDI 2230, high-stress bolted joints with concentric or eccentric strain and load. Accuracy of Bolt Preload Based on Bolt … The Load Calculator Quickly find the tensile, yield, proof, and estimated shear strengths of your bolts. But also the possibility to make a request for a special tensioner or enquire about your selections directly in the app. 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 calculator is generic an can used for imperial and metric units as long as the use of units are consistent. 8) NOMINAL BOLT SLIP LOAD - This is the nominal slip load shear loads applied to the joint should be below this value. Instrumentation. Some notes from ISO 898 metric screw threads standards: Learn More. 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