Portal de Periódicos da CAPES

LORA—an accurate four node stress plate bending element

1979; Wiley; Volume: 14; Issue: 2 Linguagem: Inglês

10.1002/nme.1620140214

1097-0207

John E. Robinson, G. W. Haggenmacher,

Structural Load-Bearing Analysis

Abstract A simple and accurate four‐node quadrilateral plate‐bending element based on stress assumptions is presented. Initial theremal strains and transverse shear stresses are included. The derivation is straightforward and without gimmicks and no numerical integration is necessary. The element behaves well for a wide range of aspect ratios with excellent convergence characteristics. The element is now being used in a practical warped configuration and with anisotropic material properties in the Lockheed‐California Company NASTRAN system.