A crack surface displacement 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。
The method reduces a three-dimension problem of the surface crack into a quasi-one-dimension problem and can be used to analyze a surface cracked plate under various loading conditions.
该方法把表面裂纹这一三维问题简化为拟一维问题，可用于分析受到多种载荷作用的含表面裂纹的板。
The method reduces a three-dimension problem of the surface crack into a quasi-one-dimension problem and can be used to analyze a surface cracked plate under various loading conditions.
该方法把表面裂纹这一三维问题简化为拟一维问题，可用于分析受到多种载荷作用的含表面裂纹的板。
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