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Failure due to staggered holes

When a member has staggered bolt holes, a different approach to finding A e for the fracture limit state is taken. This is because the effective net area ( t x w n ) is different as the line of fracture changes due to the stagger in the holes. The test for the yielding limit state remainsunchanged (the gross area is still the same).

Failure lines

The net width now must account for the change in direction of the line of fracture. First, look at different ways a tension memberwith staggered holes can fracture. These pictures depict the different lines of failure. When analyzing a member like this,it is important to find all the lines of failure and then determine which line of failure is the weakest cross section.That cross section will be taken as the net width, w n .

Net width

In order to find the net width, first the variables s and g must be known. They are shown in .

w n w g N φ d s 2 4 g


  • w n = net width
  • w g = gross width
  • φ d φ b 1 16 1 16 where: φ b = diameter of the bolt
  • N = number of bolts in cross section
  • s = longitudinal center-to-center spacing of any two consecutive holes, in.
  • g = transverse center-to-center spacing between fastener gage lines, in.
  • The term s 2 4 g is added for every non-straight segment

Questions & Answers

what is variations in raman spectra for nanomaterials
Jyoti Reply
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
yes that's correct
I think
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
How we are making nano material?
what is a peer
What is meant by 'nano scale'?
What is STMs full form?
scanning tunneling microscope
how nano science is used for hydrophobicity
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
what is differents between GO and RGO?
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Steel design (civi 306). OpenStax CNX. Jan 22, 2004 Download for free at http://cnx.org/content/col10153/1.3
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