back-propagation neural network bpnn
反向传播神经网络
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The stress field around the crack tip is simulated via the constructed Back-Propagation Neural Network (BPNN) whereby achieving the approximation of the stress field around the crack tip.
通过构造反向传播神经网络，对裂纹尖端的应力场进行模拟，进而实现对裂纹尖端应力场函数的逼近。
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