Characterizing Elastomer Fatigue Behavior for Analysis and Engineering - October 23-25, 2017

Elastomers are outstanding in their ability to repeatedly endure large deformations, and they are often applied where fatigue performance is critical. Their macromolecular structure gives rise to unique behaviors, and so appropriately specialized experimental methods are needed to characterize, analyze, and design for durability. This 3-day course will give you powerful approaches to anticipate, diagnose and solve fatigue-related issues.

Application of Rubber Fatigue Analysis with Endurica CL - October 26-27, 2017

For many companies, validating the service life for an elastomeric product is the most time-consuming and expensive stage of the product development process. The physical testing requires investment in prototypes that will be destroyed and lengthy trials that execute on expensive equipment. This course shows how Endurica CL software can be applied to virtually evaluate fatigue performance and solve design issues at the concept stage. After this 2-day course, you will be ready to use the software to diagnose and solve fatigue issues.



Monday, October 23, 2017 at 8:30 PM EDT
Friday, October 27, 2017 at 4:45 PM EDT

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Axel Products, Inc. 
2255 S. Industrial Highway
Ann Arbor, MI 48104

Driving Directions 


Joe Suter 
Endurica LLC 

Get Durability Right - Fundamentals, Theory and Application:
(Become a Certified Rubber Ninja!)

Characterizing Elastomer Fatigue Behavior for Analysis and Engineering Agenda

October 23, 2017 1: 8:30 – 4:45 pm,  6 pm Course Dinner 

  • Elastomers as engineered materials 
  • Design, Analysis and Characterization for Durability with Rubber 
  • Stiffness, mode of control, compound optimization 
  • Stress-strain – molecular origins and hyperelasticity 
  • Stress-strain – cyclic phenomena and advanced models 
  • Self-heating in rubber
  • Tearing energy

October 24, 2017: 8:15 – 4:45 pm

  • Characterizing strength of rubber
  • The fatigue threshold
  • Strategic considerations in fatigue testing
  • Characterizing Fatigue behavior of individual cracks – fully relaxing cycles
  • Characterizing Fatigue behavior – nonrelaxing cycles and strain crystallization
  • Crack nucleation, S-N curves, Continuum Damage 

October 25, 2017: 8:15 – 3:00 pm 
  • Characterizing crack precursor size
  • Rubber’s Fatigue Design Envelope 
  • Aging 
  • Multiaxial loading and Critical Plane Analysis
  • Fatigue in tension, shear, and compression
  • Variable amplitude loading, Rainflow counting, and damage accumulation
  • Component testing

Application of Rubber Fatigue Analysis with Endurica CL Agenda

October 26, 2017: 8:30 – 4:45 pm, 6 pm Course Dinner

  • Rubber product failure - what is at stake? 
  • Overview of software capabilities and workflows 
  • Setting up the stress-strain model 
  • Using material models for fatigue - fully relaxing 
  • Using material models for fatigue - nonrelaxing and strain crystallization 
  • Industry Applications: bushing under a 2-channel road load signal, exhaust mount, prosthetic joint

October 27, 2017: 8:15 – 3:30 pm

  • Calibrating crack precursor size 
  • FEA for life prediction 
  • Hands-on: sheet with a hole example 
  • Dealing with Multiaxial loading in fatigue analysis 
  • Hands-on: Diabolo 
  • Dealing with Variable amplitude loading in fatigue analysis

The course features lectures and hands-on exercises focused on specifying, executing and interpreting numerical simulations of fatigue behavior. Breakfast, lunch, snacks, and dinner on Day 1 are provided.

Dr. Will Mars is an international authority on damage mechanics in elastomers. He brings two decades of experience developing product testing and simulation methods in the rubber industry. He is the editor of Rubber Chemistry & Technology.

Endurica LLC reserves the right to cancel a scheduled training course if the minimum class size is not met. In the event of a cancellation, Endurica LLC will make every attempt to notify registered participants within five working days. Payment made for a canceled course will be refunded in full or applied to another scheduled training course.

Participant cancellations must be received at least 10 working days in advance. Registrations canceled by participants less than 10 working days before the training course begins are subject to a 50% cancellation charge. For cancellations occurring on the first day of a scheduled training course, and for "no shows," the full tuition fee is non-refundable.