Estimate direct and torsional shear per fastener for a circular rivet or bolt group.
Governing fastener shear
1,833.33 N
direct and moment components aligned
Direct shear
1,000.00 N
equal load share P / n
Moment shear
833.33 N
direct dominated case
Direct shear is shared equally; the eccentric moment adds tangential load that peaks on one side of the group.
1.83 kN peak
direct share
1.00 kN
same vertical component at each fastener
moment share
0.83 kN
tangential component from M r / sum r2
pattern stiffness term
0.0450 m2
sum of squared fastener radii
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.
Estimate direct and torsional shear per fastener for a circular rivet or bolt group.
Governing fastener shear
1,833.33 N
direct and moment components aligned
Direct shear
1,000.00 N
equal load share P / n
Moment shear
833.33 N
direct dominated case
Direct shear is shared equally; the eccentric moment adds tangential load that peaks on one side of the group.
1.83 kN peak
direct share
1.00 kN
same vertical component at each fastener
moment share
0.83 kN
tangential component from M r / sum r2
pattern stiffness term
0.0450 m2
sum of squared fastener radii
This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.
Open source: review the implementation and see how the results are produced.
Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.