Bolted Joint Consulting and Training


Bolted joint problems can often be solved more effectively with assistance from an outside organization offering a fresh and unbiased view combined with extensive experience of solving similar problems.

Matrix Engineering Consultants can provide independent and impartial advice on bolted joint design and failure mode investigation. We can provide state of the art solutions to your fastener and bolting problems based on our extensive experience and research of the subject. We always approach the problems analytically and when feasible, quantify the issues we discuss. When we provide recommendations, we justify the approach and reference published research where possible.

Our consultancy service includes:

  • Advanced bolted joint analysis and design based on VDI 2230 Part 1
  • Determination of forces acting on the bolts within a joint.
  • Finite Element Analysis of complex bolted joint systems.
  • Fastener size and strength requirement determination.
  • Failure analysis
  • Resolution of product service and in-field problems caused by bolted joints.
  • Problems in which fastener self-loosening is occurring.
  • Fastener design problems in which fatigue is a cause of concern.
  • Torque Tightening Analysis and torque auditing procedures.

We have access to an extensive, indexed library of technical resources that includes technical reports, articles, research studies and standards on bolting related topics.

We pride ourselves on communicating the bolt joint analysis and recommendations in a concise and easy to understand manner.

If you have a problem that you think that we can assist you with, please contact us for a no fee, initial consultation.

On-Site Training Course on Bolted Joints led by Matrix Engineering Consultants

Matrix Engineering Consultants can present training on bolted joints at your facility! The training materials were developed by Bolt Science© specifically for engineers and designers who are designing, installing, and inspecting bolted joints with dynamic loading. The training can be customized to your unique application or environment or be based on the standard course content. The typical course is usually two days duration delivered to between 10 to 30 students.

Course Instructors

Jon Ness, PE: Jon has over 33 years of leadership, engineering and design experience in product development. His work has included the design of multiple gear boxes, power train systems, engine installations, and the development of test and validation plan strategies. He has worked as a consultant for multiple clients in solving bolted joint problems. He has taught numerous classes related to Failure Modes and Effects Analysis and Bolted Joint Design for design engineers.

Audra Mollet, PE: Audra has over 29 years of engineering and design experience related to the development of mobile equipment components and sub-systems including power train development, gear design, and dynamically loaded bolted joints.

Please contact us if you are interested in getting a quote for this training!