Oct 31, 2014 - Dr. Willfried Lori's 'The updated guideline VDI 2230, part 2'. No wonder: This guideline VDI 2230 contains fundamental. Bolt Connection Conference 2014 program download. ITH recommends to use the latest versions of Microsoft Internet Explorer or Google Chrome for best compatibility using PDF. Sep 19, 2012 - Standard. Standard number, VDI-2230. Title, Systematic calculation of high duty bolted joints joints with one cylindrical bolt. Related title.

Torque values are based on VDI 2230, edition 2015: The table lists maximum permissible tightening torques and the resulting maximum preload for hex cap screws and socket cap screws. Torque / preload values are applicable for other types of externally threaded fasteners also, as long as head strength and bearing areas are equivalent. The values are based on 90% utilisation of yield point R eL/0.2% yield strength R p0.2. Clearance holes for bolts and screws acc.

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ISO 273-medium. The listed values are maximum values and do not include a safety factor. This guideline assumes that the user has adequate fastener knowledge and is able to interpret the data accordingly. Guideline for the following tables The guideline values are somewhat higher than in the earlier version VDI 2230, edition 1986 due to higher usage of screw strength reserves. Higher preload during assembly can be obtained.

Calculation of the fastened joint is needed! VDI 2230, edition 2015 Tightening torque of following tables With M A = F M X, the tightening torque can be calculated for other preloads (assuming the same friction coefficient and same thread size).

Kontroljnaya rabota kvadratnie uravneniya teorema vieta. SR1 Bolt Calculation to VDI 2230 SR1 / SR1+ Bolt Calculation Software (C) Copyright 1993-2019 by HEXAGON Software, Berlin Calculation Basis SR1 Software calculates, in accordance with VDI 2230, high-stress bolted joints with concentric or eccentric strain and load. The calculation makes enables graphical representation of load-extension diagrams and scale drawings. Quick Input Quick input provides input of all data in only one dialogue window. Click 'Calc' button for bolted joint calculation and get result as desired at 'Display' (tables, drawings, diagrams). Dimensioning Different combinations of bolt diameters/strength classes are calculated from the input of concentric/eccentric axial force or shearing force, static/dynamic load and tightening method which are then used as a basis for more detailed calculation. Data Base for Bolts and Threads You can choose any of the following items from the database: shank and waisted bolt dimensions according to ISO, as well as metric standard and fine threads, bolt heads in accordance with ISO 4762, ANSI B18.3, ISO 4014, ISO 4017, ANSI HEX, ANSI HEAVY HEX, ISO 10642, IFI 536, IFI 538, EN 1665, twelve point flange bolts, and nuts in accordance with ISO 4032, ISO 4034, ANSI1, ANSI2 and ANSI HEAVY.

The data base files may be appended and altered as you require. Alternatively, you can also define any number of special stepped bolts. Additional data base files and corresponding drawings are available for fasteners still commonly used in the United States with inch ( English ) thread dimensions. While the data base information is provided for diameters and pitch combinations (threads/inch) all dimensions in these data base files have been converted to SI units, i.e. 1.00 inch = 25.4 mm. And Ksi stress factors are converted to N/mm². Clamping Parts You can freely define the dimensions, material, E-Modulus, and permissable pressure of up to 20 clamping plates.

The database can be appended to include additional materials, E-Modulus, and permissible pressure information to meet the needs of the user. The experienced user can create special effects with clamping pieces to modify the SR1 deflection calculations to supplement FEA calculations and Torque / Angle Signature measurements. Concentric and Eccentric Load SR1 calculates bolted joints with concentric and eccentric strain and load. Tightening Procedure You can define yield point coefficient, tightening torque, or required assembly prestressing load. SR1 calculates min/max values by tolerances of tightening tool and friction coefficients Friction The most important friction coefficients for thread, head seat and seam are available for use in the integrated data base. The friction coefficient data base can be appended by the user to include new combinations of materials.