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Showing 1 to 5 of 5 for “"Instrumented Impact"”.
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The formation of brittle phases in brazed zirconium joints
… testing were produced to optimum conditions. Instrumented impact testing showed that the toughest joints were those brazed with a reactive copper filler, although in all joints most of the energy absorbed was due to fracture initiation energy. 4. The greater toughness of the reactive copper …
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The effects of tensile preloads on the impact response of carbon/epoxy laminates
Low velocity drop weight impact tests were conducted on carbon/epoxy laminates under various magnitudes of uniform tensile stress. The composite plates were 8 ply (+45,0,- 45,90)<sub>s</sub> laminates supported in a clamped-clamped/free-free configuration. Tensile preloads from near zero to …
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A Comparison and Evaluation of Different Dynamic Characterization Approaches for Bridges
… and controlled input vibration testing using an instrumented impact hammer and an electro-dynamic mass shaker. The two bridge specimens tested were a Parker pony truss structure and a concrete deck on steel girders structure. The effectiveness and limitations of each dynamic testing and …
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Multiple Reference Impact Testing of Bridges Using a Network of Low-Cost Dynamic Exciters
<p>Multiple Reference Impact Testing (MRIT) is a form of Experimental Modal Analysis (EMA) that can be used to identify the dynamic properties of full-scale bridges. These dynamic properties include natural frequencies, mode shapes, damping ratios, modal scaling and modal flexibility. Since these …
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Impact Mechanics of PMMA/PC Multi-Laminates with Soft Polymer Interlayers
… of how a soft interlayer affects the impact response and energy dissipation mechanisms of all-polymer multi-laminates. An instrumented, intermediate impact velocity experimental setup with strain rates on the order of 100 s-1, is used to assess the impact mechanics of three-layered …