求助：RADIOSS下定义接触摩擦

GPAD
“Padding” of master or slave objects to account for additional layers, such as shell thickness, etc. This value is subtracted from contact gap opening as calculated from location of nodes. See comment 1.
Default = THICK (Real or NONE or THICK)

pag是怎么定义的呢，求详细点说明

我的图里有三种接触，一种粘接，一种无摩擦滑动，一种有摩擦静接触，要怎么定义呢

这个是整体控制的，你要是单独一组定义pag属性就行

GPAD
“Padding” of master or slave objects to account for additional layers, such as shell thickness, etc. This value is subtracted from contact gap opening as calculated from location of nodes. See comment 1.
Default = THICK (Real or NONE or THICK)

STIFF
Relative stiffness of gap. See comment 2.
Default = AUTO (AUTO, SOFT, HARD or Real > 0.0)

MU1
Coefficient of static friction (μs). See comments 3 and 4.
Default = 0.0 (Real > 0.0 or STICK or FREEZE)

MU2
Coefficient of kinetic friction (μk).
Default = MU1 (0.0 < Real < MU1)

CONTGAP
Create a bulk data file that contains internally created contact elements represented as CGAPG elements. The file name is: filename_root.contgap.fem. See comment 6.
Default = NO (YES or NO)

CORIENT
Indicates whether the master orientation field MORIENT on the CONTACT card applies to all surfaces or if it excludes solid elements.
Default = ONSHELL (ONSHELL or ONALL)
ONSHELL – MORIENT applies only to contact masters that consist of shell elements or patches of grids. Master surfaces defined as faces of solid elements always push outwards, irrespective of initially open or pre-penetrating contact.
ONALL – MORIENT applies to all contact masters including, in particular, solid elements.

SFPRPEN
Indicates whether initial pre-penetrations are recognized and resolved in self-contact areas. (This only affects self-contact areas, wherein Master and Slave belong to the same set or surface).
Default = YES (YES or NO)
YES – Initial self-penetrations are recognized and resolved in self-contact areas. There is some danger of finding false self-penetrations across solids thinner than SRCHDIS (See comment 7).
NO – There are no pre-penetrations to be resolved in self-contact areas, except maybe minimal intrusions due to meshing, etc. Any self-penetrations larger than minimum element size will be ignored in those areas (See comment 7).

FRICESL
Frictional elastic slip – distance of sliding up to which the frictional transverse force increases linearly with slip distance. Specified in physical distance units (similar to U0 and GPAD). See Comment 8.
• Non-zero value or blank activates respective friction model based on Elastic Slip Distance.
• Zero value activates friction model based on fixed transverse stiffness KT.
Default = AUTO (Real > 0.0 or AUTO)

看看这个卡片的全部选项解释

MU1就是所有静摩擦的系数，MU2就是所有动摩擦系数吗

STIFF
可以设置一个相对的刚度，使其保持一个间隙

MU1
Coefficient of static friction (μs). See comments 3 and 4.
Default = 0.0 (Real > 0.0 or STICK or FREEZE)

MU2
Coefficient of kinetic friction (μk).
Default = MU1 (0.0 < Real < MU1)

mu1静摩擦系数，mu2为动摩擦系数

MU2是动摩擦吧。