单元高斯点应力和单元节点应力其中.ppt

FORTRAN 90 简介 程序结构 Main program Subroutine Function Module Main program program lefemd use globaldata implicit real*8(a-h,o-z),integer (i-n) character*800 buffer,ARCHITECT character*250 infile,outfile,errorstring ARCHITECT = OConnor, Emerson, and Davis Associates integer errorcode infile=E:\fortran\Console1\Debug\beam8.dat outfile=E:\fortran\Console1\Debug\beam 8.out call openfile(infile,outfile) call timeanddate !get time cost ……………. end program lefemd Subroutine subroutine openfile(infile,outfile) ! this subroutine opens files for input and output character*250 infile,outfile open(5,file=infile,status=old) open(6,file=outfile,status= unknown) end subroutine Function INTEGER FUNCTION Divby2 (num) Divby2=num / 2 END FUNCTION Module module types type femmodel character*20 name integer model integer nnode integer ngaus end type endmodule types module globaldata use types implicit real*8(a-h,o-z),integer (i-n) ! define global variables and arrays integer npoin,nelem,ndime,ndofn, ntotv,nvfix type(femmodel), allocatable:: models(:) end module globaldata Data Types and Variables: INTEGER INTEGER([KIND=]1) or INTEGER*1 INTEGER([KIND=]2) or INTEGER*2 INTEGER([KIND=]4) or INTEGER*4 INTEGER([KIND=]8) or INTEGER*8 INTEGER*1 等价于 BYTE Example: INTEGER*4 nn,mm Byte a,b Data Types and Variables: REAL REAL([KIND=]4) or REAL*4 REAL([KIND=]8) or REAL*8 REAL([KIND=]16) or REAL*16 REAL*8 等价于 DOUBLE PRECISION Example: REAL*4 a,b DOUBLE PRECISION a(100),bb Data Types and Variables: COMPLEX COMPLEX([KIND=]4) or COMPLEX*8 COMPLEX([KIND=]8) or COMPLEX*16 COMPLEX([KIND=]16) or COMPLEX*32 DOUBLE COMPLEX等价于 COMPLEX*16 Example: COMPLEX*16 a,b DOUBLE COMPLEX a(100),bb Data Types and Variables: LOGICAL LOGICAL([KIND=]1) or LOGICAL*1 LOGICAL([KIND=]2) or LOGICAL*2 LOGICAL([KIND=]4) or LOGICAL*4 LOGICAL([KIND=]8) or LOGICAL*8 Example: LOGICAL*1 a,b Data Types and Variables: CHA