pressure wax as supplied on high strength nuts) = .10, hot dip galvanized = .25, and plain non-plated bolts … Results are in Newtons. Instrumentation. Proof load is defined as the maximum tensile force that can be applied to a bolt that will not result in plastic deformation. The calculator is generic an can used for imperial and metric units as long as the use of units are consistent. joined by a bolted joint. 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 2. kN. Both lateral (single and double shear) and withdrawal capacities can be determined. Calculate bolt design stress and design load from bolt diameter and yield stress or proof stress. 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. 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). The accuracy of all calculations performed in the shock load calculator is … See also this calculator and this table. 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.. Tension tooling, powertrain couplings, and accessories designed for power generation applications. Clamp load (lb.) The Calculators below can be to calculate the ultimate (breaking) load of bolts. Quick Input Quick input provides input of all data in only one dialogue window. Learn More. Bolt Torque Calculator; US Bolts - Tensile Strength and Proof Loads ; Proof Load. With too little clamping force, the joint may loosen. After calculating the torque, ensure the bolts are not over-stretching and exceeding their yield strength, or some predetermined design stress. Calculation Basis SR1 Software calculates, in accordance with VDI 2230, high-stress bolted joints with concentric or eccentric strain and load. Hydraulics. 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: K values: waxed (e.g. 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. Bolt Torque Calculator. Single. Higher or lower values of clamp load can be used depending on the application require- Bolt Load Capacity Tables To BS5950 Part 1. Bolt Stress window, displays bolt stress, bolt load and % of bolt yield. Note: tensile axial forces (Fa) applied to the joint will reduce the slip load. Bearing strength of bolts. 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. 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. Tensile Capacity at 195N/mm. Informate’s bolt load values are independently verified to ensure leak-free joints, every time. 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 . 8) NOMINAL BOLT SLIP LOAD - This is the nominal slip load shear loads applied to the joint should be below this value. Last. Explore the possibilities. Bolt Load Calculator Please note that the above data is based on bolts lubricated to manufacturer’s spec. Definition of the algorithm BOLT ULTIMATE STRENGTH CALCULATORS. COMMITTED TO SUSTAINABLE PRODUCTIVITY Caution. Use to determine Torque, Bolt Load and Percent Yield of Maximum Load of Bolts. Accuracy of Bolt Preload Based on Bolt … 1) Enter thread diameter nominal value in section Thread Size.Click on info button for more info. To download BoltUp, or for a free 7 day trial of the Informate bolt load calculation software go to: joint-integrity.com. Force = Bolt Load = ? 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 5) Calculate torsional shear force (Fm) F v,Ed is the applied shear load and F v,Rd is the shear resistance of the bolt. the bolt load is transferred from the Tensioner to the joints hexagon or round nuts. Tensioning sequence information. Load Calculator Quickly find the tensile, yield, proof, and estimated shear strengths of your bolts. Values calculated using industry accepted formula T = KDP where T = Torque, K = torque coefficient (dimensionless), D = nominal diameter (inches), P = bolt clamp load, lb. K – constant d – diameter of bolt (m, in) F – axial bolt force or load (N, lb) 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. By over-tightening the bolt, one may exceed the proof load of the bolt. Product Lines. is calculated by arbitrarily assuming usable bolt strength is 75% of bolt proof load (psi) times tensile stress area (sq. 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. 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. 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. 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 . Clamp load is also known as preload or initial load in tension on bolt. The load will vary for each bolt. of threaded section of each bolt size. 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. Step 1 - Enter Information. A material must remain in its elastic region when loaded up to its proof load typically between 85-95% of the yield strength. 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). 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 Date :-01.01.2003. Try this bolt pattern force distribution calculator, which allows for applied forces to be distributed over bolts in a pattern. But also the possibility to make a request for a special tensioner or enquire about your selections directly in the app. 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. in.) If the joint is exposed to cyclical loads, too little clamping force can shorten the bolt’s fatigue life. F t,Ed is the applied tensile load and F t,Rd is the tension resistance of the bolt. Proper amount of tensioning of the bolts is vital. The calculation makes enables graphical representation of load-extension diagrams and scale drawings. 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. Some notes from ISO 898 metric screw threads standards: 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. Email * Website. 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). 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. Features the Indikon product line of legacy torque and vibration measuring devices. Thanks a lot for your clarifications. 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. The Due to a variation in friction we recommend in extreme cases to check with the bolt manufacturer, as this chart represents a guideline only. About this Calculator What is it for? 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. Submit. Accuracy. Open --> Bolt Preload Tension Force Calculator. The lower calculation table considers simulaneous axial (Fa) and shear … EZ Calc - Bolting Calculator, Enerteq's oline tool for estimating Required Torque Values. 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. RE: ASME flange calculations design bolt load Vs. applied bolt load … 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. Too much clamping force can also cause severe problems. from precision medical instruments to high-performance robotic solutions, FUTEK products are designed to work in the most demanding environments — even on Mars. This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. Name * First. Shear Capacity at 160N/mm THREADS IN SHEAR PLANE. That figure is about right for a low tensile bolt. 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