结构分析多载荷步问题，请高手赐教
小弟要做结构分析有塑性变形
在不同的单元按载荷步加力,分析应力及应变
1.重启动分析与按载荷步加载有什么区别？按载荷步加载时，前一载荷步的应力等信息保留与重启动有区别么？
2。热分析加载热流密度时按载荷步与重启动分析一样么？
3，卸载加零载荷对么？
按载荷步
*DO,i,1,
!加载
ESEL,S, , ,i
NSLE,S
F,all,FX,forcex
F,all,FY,forcey
ALLSEL,ALL
solve
fdele,all,all
!卸载
ESEL,S, , ,i
NSLE,S
F,all,FX,0
F,all,FY,0
ALLSEL,ALL
solve
*enddo
重启动方法
antype,static,new
ESEL,S, , , 1
NSLE,S
F,all,FX,forcex
F,all,FY,forcey
solve
save
antype,,rest,1
fdele,all
ESEL,S, , , 1
NSLE,S
F,all,FX,0
F,all,FY,0
solve
save
*do,i,2,
!加载
antype,,rest,2*i-2
fdele,all
ESEL,S, , , i
NSLE,S
F,all,FX,forcex
F,all,FY,forcey
solve
!卸载
antype,,rest,2*i-1
fdele,all
ESEL,S, , , i
NSLE,S
F,all,FX,0
F,all,FY,f0
solve
save
*enddo
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