A cracksurfacedisplacement of four-point-bend specimen under three types of loading is studied in this paper.
研究了四点弯曲型试件在各种类型载荷作用下的裂纹面位移，并考虑了裂纹尖端塑性区对它的影响。
2
It is found that the electric displacement intensity factors for the permeable cracksurface conditions are much smaller than the results for the impermeable crack surface conditions.
与不可导通电边界条件相比，导通裂纹表面的电位移强度因子比不可导通裂纹的电位移强度因子要小许多。
3
At the same time, the surfacecrack repair method of crack treating, grouting filling embedded block and structural concrete reinforcement and displacement methods are proposed.