对两球体赫茨接触应力公式的进一步精确

The precise calculation of the Contact stress

将球面展开到4阶(而不是2阶),推导了两个球体的接触应力,是对赫茨接触应力公式的进一步精确。

This paper developed the sphere into forth order, instead of the second order, and calculates the contact stress of spherical surface, improved the result.