根据新的斜角非自由切削模型，本文提出了新的剪切面积计算方法。
The paper proposes a new method for calculating shear plane area based upon a new oblique cutting model with double edge.
在核压力容器钢的中子辐照脆化评价中，断口剪切面积百分比是一个重要的参数。
Percent shear fracture appearance is an important factor to evaluate neutron irradiation embrittlement of nuclear pressure vessel steel.
结果表明：X70管线钢焊接接头热影响区冲击试样的冲击功与断口剪切面积基本成线性比例关系，冲击功越高，剪切面积越大。
The results indicated that impact absorbed energy of heat-affected zone in welded joint of X70 pipeline steel were proportional with shearing area on the whole.
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