NUMERICAL CALCULATION TECHNIQUE FOR LARGE ELASTIC-PLASTIC TRANSIENT DEFORMATIONS OF THIN SHELLS

被引：20

作者：

LEECH, JW

WITMER, EA

PIAN, THH

机构：

[1] Massachusetts Institute of Technology, Cambridge, MA

[2] Massachusetts Institute of Technology, Aeroelastic and Structures Research Laboratory, Cambridge, MA

[3] Massachusetts Institute of Technology, Aeronautics and Astronautics, Cambridge, MA

来源：

AIAA JOURNAL | 1968年 / 6卷 / 12期

关键词：

D O I：

10.2514/3.4994

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

Studies of explosive forming of structures must often include the large-deformation transient and permanent-deflection responses of the structure. To aid in studies of this nature, a large-deflection elastic- plastic transient response prediction method has been developed. The accuracy and reliability of this method have been demonstrated by comparisons of theoretical predictions with experimental measurements. The large-deflection large- rotation small-strain equations of motion for a thin shell including elastic, elastic- plastic, strainhardening, and strain-rate material behavior are presented in tensor form. These equations are then cast into numerical form by finite differencing. The step-by-step numerical-integration technique is applied to the case of a cylindrical panel; dynamic-deformation predictions are compared with experimentally observed deformation histories of an explosively loaded cylindrical panel tested at the Picatinny Arsenal. © 1968 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.

引用

页码：2352 / &

共 21 条

[11]

LEE EH, 1952, J APPL MECH-T ASME, V19, P308

[12]

LEECH JW, 1966, AFFDLTR66171 AIR FOR

[13]

MCCALLUM RB, TR1353 MASS I TECHN

[14]

MCCALLUM RB, 1967, TR3620 PIC ARS

[15]

Owens RH, 1955, J APPL MECH, V22, P523

[16]

PIAN THH, 1964, RTDTDR634271 MASS I

[17]

PRAGER W, 1959, INTRODUCTION PLASTIC, P1

[18]

WHITE GN, 1950, 51 BROWN U GRAD DIV

[19] LARGE DYNAMIC DEFORMATIONS OF BEAMS, RINGS, PLATES, AND SHELLS [J].

WITMER, EA ;

BALMER, HA ;

LEECH, JW ;

PIAN, THH .

AIAA JOURNAL, 1963, 1 (08) :1848-1857

[20]

WITMER EA, 1960, 60433 AIR FORC WRIGH

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