Local damage to reinforced concrete structures caused by impact of aircraft engine missiles Part 2. Evaluation of test results

Local Effects of Impact into Concrete Structure

“…Limits of applicability of these formulae highly depend on the original experiment. Medium and larger scale tests were done by Rüdiger and Riech [8], Kojima [9] and Sugano [10,11].…”

“…One of the best documented multi-scale test series was executed by Sugano and his team [10,11]. They used flat-nose, cylindrical, hard and semi-hard models of a GE J-79 military jet engine in three different scales (1 / 7.5, 1 / 2.5, 1 / 1) and concrete target plates with different size, thickness and reinforcement.…”

“…Reinforcement is not modeled at this stage, because according to test results [10,11], it hardly affects the perforation and penetration properties (in case of high velocity impacts and normal amount of reinforcement). Material model is CONC-35MPa explicit material model of Ansys Workbench Explicit that includes the RHT strength model [14] that describes rate-dependent elastic limit, failure and residual surfaces, and also includes state equations for pressure dependence of compression and density.…”

On numerical implementation of a coupled rate dependent damage‐plasticity constitutive model for concrete in application to high‐rate dynamics

“…In order to check the relevance of the constitutive relations we carried out simulations of impact tests performed in Sandia Laboratory by Sugano et al and presented in [25] and [26]. Following the test program, we simulate impact of n aircraft engine equivalent missiles, considering several sizes.…”

Shear punching studies on an impact loaded reinforced concrete slab

“…Experimental test programs for rigid and deformable missiles, reported in References Sugano et al (1993b) and Sugano et al (1993c), consist of small-, intermediate-and full-scale impact tests.…”