It is not easy to achieve the “plane-strain tension” loading
condition, where minor strains are close to zero. We have
optimized sample geometries and testing approaches in order to
achieve the desired PST deformation mode to support fracture model
calibration efforts
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Custom tests with optimized PST sample geometries (for different
metallic materials)
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Several approaches: pull testing of notched samples as well as
sheet stretching via Marciniak and Nakajima punches.
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Evaluation of fracture strain limits under PST loading with
stress triaxialities approaching 0.57 (support the calibration
of fracture models _ GISSMO)
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Quasi-static rates, as well as intermediate and high rates
