... Conventional impact tests (without instrumentation) are performed to measure the energy required to break a notched specimen under dynamic loading. Instrumented impact tests not only measure the notched specimen breaking energy but also quantify the energy required to form a crack at the root...

..., an extrapolation to the fracture toughness of larger sections will become possible. precracked Charpy-type specimen instrumented impact test influence of impact velocity oscillations transition behaviour fracture toughness T. VargaI and E Loibnegger2 Low Striking Velocity Testing of Precracked Charpy...

... are attributed to the different techniques used to develop the starter crack in the modified Charpy specimen. Charpy V-Notch Instrumented Impact Test Lower bound toughness C h r i s t o p h e r N. M c C o w a n I, James W. D a l l y 2, Daniel P. V i g l i o t t i I and Ouk S. Lee 3 LOW COST LOWER...

... Four ferritic steels in the form of plate (A 533B) and weldments (A 533B plate and A 508 forging) were irradiated at 563 K to a nominal fast fluence of 1 × 10 19 n / cm 2 ( E > 1 Me V ) to explore the effective use of instrumented impact testing...

... temperatures for the pre-cracked specimens. AAR M128 steel ASTM A212 steel Charpy test fatigue pre-crack instrumented impact test transition temperature B. Anne Fields, Samuel R. Low, III, and James G. Early THE EFFECT OF FATIGUE PRE-CRACKING VERSUS V-NOTCHING ON IMPACT TESTING OF CHARPY...

... are applicable to other techniques of dart impact testing. An important element of this paper is its application to widely differing data records and the recognition that the data analysis should not be forced for certain types of data records. impact testing instrumented impact test plastics composites...

... Instrumented impact testing has been applied to study the effect of fiber properties on the impact damage tolerance of fiber-reinforced composites containing aramid, carbon, and glass fibers. The energy-absorbing capability of fibrous composites in impact is dependent on the tensile strain...

... and a damage assessment on the basis of stress-time accumulation. Comparisons are made between the calculations made at high impact speeds and those from the impact experiments conducted at low speeds. The computer simulation and experimental results are in qualitative agreement. instrumented impact test...

...-strain modulus of 1.69 GN/m 2 . instrumented impact test fracture mechanics fracture toughness force measurement laser-Doppler velocity measurement impact testing John M. Hodgkinson} and J. Gordon Williams^ Analysis of Force and Energy Measurennents in Impact Testing REFERENCE: Hodgkinson...

... of this simple singular element formulation for solving fracture dynamics problems with stationary cracks. The third problem, involving a three-point bend specimen of A533B steel, suggests a potential application of the present method in instrumented impact tests. fracture dynamics instrumented impact...