Conceptually the testing apparatus of a typical SHPB system is not complex so there is a question whether a SHPB system can be built in-house by a machine shop. The answer may be ‘yes, a system could be built’, but not a robust, cost effective system.
The typical amount of time an event takes in a SHPB test is 30-200 micro-seconds. For comparison, the typical reaction time for a human to react to a touch, sound or visual event is 0.15-0.25 seconds (15000-25000 micro-seconds). This would be enough time for 100 of the events measured in a SHPB test, therefore the testing system and setup is critical in obtaining high integrity data and accurate materials properties at various high strain rates.
The following the value proposition of each approach: 1) Buying a SURE-Test System from REL or 2) building one in-house.
- Buy a SURE-TEST System from REL:
- 8-12 weeks for delivery and installation
- Training for grad students and/or research personnel and continued support from REL’s staff to insure good test setup, high integrity, publishable data
- Students/Research personnel are obtaining good test results within 3-4 months of deciding to acquire a system.
- Access to REL’s 15 years of high strain rate testing experience when designing new testing setups or testing ‘weird’ materials
- REL’s Modular System Pricing starts at around $100k for base compression systems.
- Multiple modules such as: test fixtures, cameras, heating, and lighting systems are available for expanding your system’s capability. Click here to view our SURE-Test SystemsTM
- For University/Research Institute To Build:
- 2 grad students – 2 years – ~ $15k each/year – ~$60k
- 1 professor – 3-5 months of oversight – ~$25k
- Materials & Outside Machining – ~$50k
To begin to get good, consistent data:
- 1 grad student – 2 years – ~$30k
- 1 professor – 3 months – ~$25k
- Materials – ~$10k
Time and Budget to obtain repeatable/publishable data:
- 3 years and over $200,000
For more information about REL’s SURE-Test Systems click here. REL works with customers across the United States and worldwide. Our systems can be found in numerous universities, research institutes and companies around the world.