Approximate analysis of containment/deflection ring responses to engine rotor fragment impact.

The transient responses of containment and/or deflection rings to impact from an engine rotor-blade fragment are analyzed. Energy and momentum considerations are employed in an approximate analysis to predict the collision-induced velocities which are imparted to the fragment and to the affected ring segment. This collision analysis is combined with the spatial finite-element representation of the ring and a temporal finite-difference solution procedure to predict the resulting large transient elastic-plastic deformations of containment/deflection rings. Some comparisons with experimental data are given.

[1]  Patrick T. Chiarito.  Status of Engine Rotor Burst Protection Program for Aircraft , 1972 .

[2]  H. Hibbitt,et al.  A finite element formulation for problems of large strain and large displacement , 1970 .

[3]  E. A. Witmer,et al.  Finite-element analysis of large elastic- plastic transient deformations of simple structures , 1971 .

[4]  E. A. Witmer,et al.  Progress in the analysis of jet engine burst- rotor containment devices , 1969 .

[5]  M. Wilkins.  Calculation of Elastic-Plastic Flow , 1963 .

[6]  Emmett A. Witmer,et al.  THEORETICAL-EXPERIMENTAL CORRELATION OF LARGE DYNAMIC AND PERMANENT DEFORMATIOONS OF IMPULSIVELY-LOADED SIMPLE STRUCTURES , 1964 .

[7]  Albert A. Martino,et al.  Rotor Burst Protection Program Initial Test Results. , 1969 .

[8]  J. R. Tillerson,et al.  NONLINEAR DYNAMIC ANALYSIS OF SHELLS OF REVOLUTION BY MATRIX DISPLACEMENT METHOD , 1970 .

[9]  Albert A. Martino,et al.  TURBINE DISK BURST PROTECTION STUDY. , 1967 .

[10]  E. A. Witmer,et al.  Finite element analysis of large transient elastic-plastic deformations of simple structures, with application to the engine rotor fragment containment/deflection problem , 1972 .

[11]  E. A. Witmer,et al.  Examination of the collision force method for analyzing the responses of simple containment/deflection structures to impact by one engine rotor blade fragment , 1972 .

[12]  E. A. Witmer,et al.  Dimensional analysis considerations in the engine rotor fragment containment/deflection problem , 1971 .