Balanced Biaxial Tension (BBT) Testing - Hydraulic Bulge (HBG) Testing
Tension testing is not always enough to describe the behavior of a material; its response to balanced biaxial deformation is sometimes more critical, and that can be evaluated with the hydrostatic bulge test. Our expertise in bulge testing covers
- Standard tests (per ISO 16808 or equivalent) and custom tests in support of “research & development” efforts
- Construction of effective biaxial stress/strain curves and evaluation of material biaxial formability limits
- Not only balanced biaxial, but also controlled biaxial deformation to cover several biaxial strain ratios
- Testing with liquid or gas to accommodate different materials (metals, composites & polymers) under different conditions
- Quasi-static as well as intermediate rates
- For cold, warm, and hot forming operations
