当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2015年
8期
1972-1973,1976
,共3页
邵菁%张德琦%付路路%孙海霞
邵菁%張德琦%付路路%孫海霞
소정%장덕기%부로로%손해하
压力管道%裂纹%断裂力学%有限元
壓力管道%裂紋%斷裂力學%有限元
압력관도%렬문%단렬역학%유한원
Pressure pipe%Crack%Fracture mechanics%Finite element
针对小裂纹断裂力学的基本概念,运用 ANSYS workbench15.0有限元软件建立了压力管道及其裂纹的三维实体模型,并对其进行了有限元网格划分,最后对小裂纹进行了断裂力学计算,得出了裂纹的 KⅠ强度因子、KⅡ强度因子、KⅢ强度因子和 J 积分,定量的分析了裂纹尖端区域的应力场强弱程度,为压力管道裂纹的研究提供了定的数据支持。
針對小裂紋斷裂力學的基本概唸,運用 ANSYS workbench15.0有限元軟件建立瞭壓力管道及其裂紋的三維實體模型,併對其進行瞭有限元網格劃分,最後對小裂紋進行瞭斷裂力學計算,得齣瞭裂紋的 KⅠ彊度因子、KⅡ彊度因子、KⅢ彊度因子和 J 積分,定量的分析瞭裂紋尖耑區域的應力場彊弱程度,為壓力管道裂紋的研究提供瞭定的數據支持。
침대소렬문단렬역학적기본개념,운용 ANSYS workbench15.0유한원연건건립료압력관도급기렬문적삼유실체모형,병대기진행료유한원망격화분,최후대소렬문진행료단렬역학계산,득출료렬문적 KⅠ강도인자、KⅡ강도인자、KⅢ강도인자화 J 적분,정량적분석료렬문첨단구역적응력장강약정도,위압력관도렬문적연구제공료정적수거지지。
Based on the basic concepts of fracture mechanics for small cracks, a three-dimensional solid model of pressure pipes and cracks was established with the finite element software ANSYS workbench15.0, and finite element meshing was carried out, and finally mechanics calculation for the small cracks was conducted to obtain KⅠintensity factor, KⅡ intensity factor, KⅢ intensity factors and J integral, and stress field strength of the crack tip region was quantitatively analyzed, which could provide data support for piping crack research.