Fatigue

G.RAU Inc. has partnered with trusted suppliers to provide industry-leading fatigue systems, configured with multi-station setups that capture up to 16 individual force readings with displacement accuracies within microns. Tests can be performed in air or fluid baths at controlled temperatures to mimic clinically relevant conditions. Our team designs custom fixtures to apply controlled deformations to diamond surrogates, extracted cells, or full devices. With extensive experience in low-cycle integrity tests through 600 million cycles and beyond, G.RAU Inc. offers unmatched expertise in fatigue testing.

Our state-of-the-art equipment, partnered with our dedication to quality and technical accuracies, helps ensure that every test we perform delivers precise, reliable results that are ready for regulatory review.

Our tailored fatigue services follow relevant ASTM and ISO standards, including:

ASTM F3211 (fatigue to fracture)
ASTM F2942 (axial, crush, bend vascular stents)
ISO 5840 (heart valve transcatheter implants)
ISO 5910 (cardiac valve repair devices)

Our pulsatile fatigue testing services are conducted with state-of-the-art equipment that enables precise evaluation of devices across various applications, from neurovascular devices to heart valve frames. These tests simulate physiological conditions to assess device performance under cyclic pulsatile loading to ensure long-term durability and reliability. Test parameters, such as temperature, motor amplitudes, radial distensions, and pulse pressures, are meticulously monitored and controlled to replicate clinical conditions accurately. Additionally, we develop customized test methodologies for complex scenarios tailored to your specific device and its intended use case. It is essential to us that our testing services generate robust data to support your engineering evaluations and regulatory submissions.

Our pulsatile fatigue test methodologies follow guidelines recommended in ASTM F2477 (pulsatile durability of vascular stents).

G.RAU Inc. has invested in high-force fatigue testing capabilities that leverage advanced, high-end equipment with force capacities up to 10kN. This allows us to precisely evaluate material and device performance under demanding conditions. These tests can be controlled by forces, displacements, or strains - with the use of calibrated extensometers to ensure accurate and reliable measurements. Temperature control is available through an air chamber or fluid bath to simulate physiological conditions.

We offer a comprehensive range of standardized material fatigue tests and custom methodologies, such as static, dynamic, and creep tests. For more complex needs, we design tailored methodologies to address your specific material or device requirements. Our commitment is to provide robust, high-quality data to support engineering evaluations and regulatory submissions, ensuring confidence in your product’s long-term performance.

Our high-force fatigue services follow relevant ASTM, such as:

ASTM F2193 (surgical fixation)
ASTM F1717 (spinal implant constructs)
ASTM F564 (metallic bone staples)
ASTM F3211 (fatigue to fracture)