4. Quantity and components introduced in Code_Aster

The calculated values are stored at Gauss points or at the nodes depending on the option selected. The size FACY_R (FAtigue CYclique) has been introduced in the size catalog.

For periodic loading and maximum shear critical plane type criteria

DTAUM1	first value of the maximum half-amplitude of the shear in the critical plane
VNM1X	component \(x\) of the normal vector at the critical plane linked to DTAUM1
VNM1Y	component \(y\) of the normal vector at the critical plane linked to DTAUM1
VNM1Z	component \(z\) of the normal vector at the critical plane linked to DTAUM1
SINMAX1	maximum normal stress at the critical plane corresponding to DTAUM1
SINMOY1	mean normal stress at the critical plane corresponding to DTAUM1
EPNMAX1	maximum normal deformation at the critical plane corresponding to DTAUM1
EPNMOY1	mean maximum deformation at the critical plane corresponding to DTAUM1
SIGEQ1	Equivalent stress in the sense of the selected criterion corresponding to DTAUM1
NBRUP1	number of cycles before failure (a function of SIGEQ1et of a Wöhler curve)
ENDO1	damage associated with NBRUP1 (ENDO1 =1/ NBRUP1)
DTAUM2	second value of the maximum half-amplitude of the shear in the critical plane
VNM2X	component \(x\) of the normal vector at the critical plane linked to DTAUM2
VNM2Y	component \(y\) of the normal vector at the critical plane linked to DTAUM2
VNM2Z	component \(z\) of the normal vector at the critical plane linked to DTAUM2
SINMAX2	maximum normal stress at the critical plane corresponding to DTAUM2
SINMOY2	mean normal stress at the critical plane corresponding to DTAUM2
EPNMAX2	maximum normal deformation at the critical plane corresponding to DTAUM2
EPNMOY2	mean maximum deformation at the critical plane corresponding to DTAUM2
SIGEQ2	Equivalent stress in the sense of the selected criterion corresponding to DTAUM2
NBRUP2	number of cycles before failure (a function of SIGEQ2et of a Wöhler curve)
ENDO2	damage associated with NBRUP2 (ENDO2 =1/ NBRUP2)

Table 5.5-1: Components specific to multiaxial cyclic fatigue for periodic loading

For non-periodic loading and the criteria for the type of critical plan maximum damage

VNM1X	component \(x\) of the normal vector at the critical plane related to the max damage
VNM1Y	component \(y\) of the normal vector at the critical plane related to the max damage
VNM1Z	component \(z\) of the normal vector at the critical plane related to the max damage
ENDO1	damage associated with the cargo block
VNM2X	component \(x\) of the normal vector at the critical plane related to the max damage
VNM2Y	component \(y\) of the normal vector at the critical plane related to the max damage
VNM2Z	component \(z\) of the normal vector at the critical plane related to the max damage

Table 5.5-2: Components specific to multiaxial cyclic fatigue for non-periodic loading

For non-periodic loading, if there is only one critical maximum damage plane, VNM2X, VNM2Y, VNM2Z are the same as VNM1X, VNM1Y, VNM1Z. If several planes exist, you sound an alarm and release the first two plans.