Elements and Element Properties for region: 2dsolid. The 1 in the MID2 field is the flag that tells MSC NASTRAN to use a plane strain formulation. If the 2D solid is in the XY plane as shown above, it will have stiffness in the X and Y directions only. There will be RZ stiffness if K6ROT 0. 0. This strain and its first and second variations are defined as follows. Let be a fixed point in one of the bounding planes, as shown in Figure.
The length of the fiber between and its image in the other bounding plane is, where is the length of this fiber in the initial For more details see the Autodesk Nastran User's Manual, Reference 12 and 13. MCT for the Multicontinuum theory. Orthotropic materials comprised of unidirectional plies or plain weave fabric under a general stare of plane stress. For more details see the Orthotropic materials under a general state of plane stress with unequal tensile and compressive strengths. LaRC02: See the Autodesk Nastran User's Manual, Reference 5.
Orthotropic materials comprised of unidirectional plies under a general state of plane stress. Puck: See the Autodesk Nastran User's Manual, References 12 and 13. May 04, 2007 The out of plane strain component is obtain from relative displacement of two rigid plane bounding the element in the out of plane direction. You can find the formulation of the generalized plane strain elements in: ABAQUS Tutorial 3D Stress Analysis Consider the problem studied previously using plane stress analysis.
While nothing is gained by using a 3D finite element analysis for this problem, it does RE: Orthotropic Materials in Nastran Plane Strain Analysis CPLSTN4 jbrackin (Structural) 11 Dec 15 14: 24 See the picture below from the QRG, the elem cord system is the basic system, so all elements should have the same rotation angle. You are rotating from the basic x axis. This stressstrain material relationship is defined in 2D plane strain elements used in this type of analysis.
Fig. 4: Plane strain analysis; stress and strain state assumptions. The figure shows the orientation of the 2D plane strain elements as a cut section through a typical deep component.