HPP2 HPP3
number $N$ file name $_{(1)}$ file name $_{(2)}$ $\vdots$ file name $_{(N)}$ material 2 $k_{B(2)}$ $n_{(2)}$ element list $_{(2)}$ $\vdots$ material $i$ $k_{B(i)}$ $n_{(i)}$ element list $_{(i)}$ $\vdots$ material $N$ $k_{B(N)}$ $n_{(N)}$ element list $_{(N)}$
The number of used materials $N$ is entered on the first line after the keyword number.
The names of the files in which the material parameters are stored are entered on the next $N$ lines.
Then $N-1$ blocks follow, where individual materials are assigned to elements.
Each block starts with a header indicated by the keyword material, where $i$ is the material index number ($i\ge2$), $k_B$ indicates the initial deformation calculation method for Bina model (for other models the value is ignored) and $n$ is the number of elements to which the $i$-th material is assigned.
The list of elements to which the $i$-th material is assigned is written on the next lines of the block (condensed a:b notation can be used).
The block for material $i=1$ is not specified. This material is implicitly assigned to all elements that were not assigned a material $i\ge2$ within the material blocks. The value of $k_{B(1)}$ for Bina model is determined from the second digit of the key $\mathtt{KCRP}$ in the file name.iP.
If only one material is used in a creep problem, the file name.DAT contains only two lines.
HPP2 HPP3
See individual Creep Models.
Files with material parameters, which are referenced in the file name.DAT, may be named arbitrarily. Their structure varies according to the material model used.