We regularly perform material characterization testing, including industry standard ASTM and SACMA tests for monolithic and sandwich composites (tension, compression, short and long beam shear). We also characterize metals using standard ASTM tests, with one major area being NHRA chrome-moly chassis tube characterization.
We also perform prototype component and product testing. Such testing covers a wide range of subjects, from motorcycle footpegs to spacecraft landing gear.
We perform modal vibration testing, usually in the field, commonly for design verification of completed products for our clients. Verification may consist of minimum natural frequencies, damping quantification, or full modal characterization.
We perform testing to support legal cases, which in some cases is design verification, and in others is failure reconstruction. Sometimes these tests are done in the field. See the legal section for project examples.
Supporting the lab, we have in-house model shop capabilities for composite and metal test sample prep, fixture fabrication, and test article/prototype fab (cutting/sawing, CNC milling, lathe turning, TIG and stick welding, woodworking). We often design and build special fixturing to execute accurate tests of unique subjects.
Convergence Engineering has various methods for test article loading, including multi-location computer controlled hydraulics that can be used closed loop, in either force or position control mode. We use digital data acquisition systems to record data. Our load frame capacity is 25 kip, and can be used for low frequency dynamic loading for fatigue simulation.
We are experienced in the use of photogrammetric deformation measurement, as well as the use of common sensors (strain gages, accels, etc).
Following is a summary of test projects executed at our laboratories and in the field.