Design and Analysis of Bolted Joints Training

Commitment 3 days, 7-8 hours a day.
Language English
User Ratings Average User Rating 4.8 See what learners said
Delivery Options Instructor-Led Onsite, Online, and Classroom Live


Design and Analysis of Bolted Joints Training help everyone involved in developing hardware for space missions (or any other purpose, for that matter) that has been affected by problems with mechanical joints. Common problems include structural failure, fatigue, unwanted and unpredicted loss of stiffness, joint slipping or loss of alignment, fastener loosening, material mismatch, incompatibility with the space environment, mis-drilled holes, time-consuming and costly assembly, and inability to disassemble when needed.

Includes a close look at NASA-STD-5020, Requirements for Threaded Fastening Systems in Spaceflight Hardware, which was approved in March 2012 for use throughout NASA. Also, the Design and Analysis of Bolted Joints Training course includes many examples and class problems. Participants should bring calculators.

  • 3 days of Design and Analysis of Bolted Joints Training with an expert instructor
  • Design and Analysis of Bolted Joints Training Course Guide
  • Certificate of Completion
  • 100% Satisfaction Guarantee



Upon completing this Design and Analysis of Bolted Joints  course, learners will be able to meet these objectives:

  • Build an understanding of how bolted joints behave and how they fail
  • Impart effective processes, methods, and standards for design and analysis, drawing on a mix of theory, empirical data, and practical experience
  • Share guidelines, rules of thumb, and valuable references
  • Help you understand NASA-STD-5020
  • We can adapt this Design and Analysis of Bolted Joints Training course to your group’s background and work requirements at little to no added cost.
  • If you are familiar with some aspects of this Design and Analysis of Bolted Joints course, we can omit or shorten their discussion.
  • We can adjust the emphasis placed on the various topics or build the Design and Analysis of Bolted Joints course around the mix of technologies of interest to you (including technologies other than those included in this outline).
  • If your background is nontechnical, we can exclude the more technical topics, include the topics that may be of special interest to you (e.g., as a manager or policy-maker), and present the Design and Analysis of Bolted Joints course in a manner understandable to lay audiences.

The target audience for this Design and Analysis of Bolted Joints course:

  • Mechanical design engineers, structural analysts, and others interested in or involved with bolted joints.

The knowledge and skills that a learner must have before attending these Design and Analysis of Bolted Joints course are:

  • N/A


  • Common problems with structural joints
  • A process for designing a structural joint
  • Identifying functional requirements
  • Selecting the method of attachment
  • General design guidelines
  • Introduction to NASA-STD-5020
  • Key definitions per NASA-STD-5020
  • Top-level requirements
  • Factors of safety, fitting factors, and margin of safety
  • Establishing design standards and criteria
  • The importance of preload
Design and Analysis of Bolted Joints Training – Introduction to Threaded Fasteners
  • A brief history of screw threads
  • Thread forms and dimensional considerations
  • Tensile-stress area
  • Are fine threads better than coarse threads?
Developing a Concept for the Joint
  • General types of joints and fasteners
  • Configuring the joint
  • Designing a stiff joint
  • Shear clips and tension clips
  • Avoiding problems with fixed fasteners
Calculating Bolt Loads when Ignoring Preload
  • How a preloaded joint carries the load
  • Temporarily ignoring preload
  • Other common assumptions and their limitations
  • An effective process for calculating bolt loads in a compact joint
  • Examples
  • Estimating fastener loads for skins and panels
Failure Modes, Assessment Methods, and Design Guidelines
  • An effective process for strength analysis
  • Bolt tension, shear, and interaction
  • Tension joints
  • Shear joints
  • Identifying potential failure modes
  • Fastening composite materials
Design and Analysis of Bolted Joints Training – Thread Shear and Pull-out Strength
  • How threads fail
  • Computing theoretical shear engagement areas
  • Including a knock-down factor
  • Test results
Selecting Hardware and Detailing the Design
  • Selecting compatible materials
  • Selecting the nut: ensuring strength compatibility
  • Common types of threaded inserts
  • Use of washers
  • Selecting fastener length and grip
  • Recommended fastener hole sizes
  • Guidelines for simplifying assembly
  • Establishing bolt preload
  • Torque-preload relationships
  • Locking features and NASA-STD-5020
  • Recommendations for establishing and maintaining preload
Mechanics of a Preloaded Joint
  • Mechanics of a preloaded joint under applied tension
  • Estimating bolt stiffness and clamp stiffness
  • Understanding the loading-plane factor
  • Worst case for steel-aluminum combination
  • Key conclusions regarding load sharing
  • Effects of bolt ductility
  • How temperature change affects preload
Analysis Criteria in NASA-STD-5020
  • Objectives and summary
  • Calculating maximum and minimum preload
  • Tensile loading: ultimate-strength analysis
  • Separation analysis
  • Tensile loading: yield-strength analysis
  • Shear loading: ultimate-strength analysis
  • Shear loading: joint-slip analysis
  • Revisiting the bolt fatigue and fracture requirement
Design and Analysis of Bolted Joints TrainingDesign and Analysis of Bolted Joints Training Course Wrap-Up


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