Using the Stroh sextic formalism, we derive the elastic field describing stresses and displacements for a blunt crack in a generally anisotropic elastic material subjected to two-dimensional deformations. The blunt crack is represented by a parabolic cavity. We find that the elastic field is exact everywhere in an anisotropic elastic material with a parabolic boundary and is not confined to the near-tip region. We present an explicit expression for the elastic field in an orthotropic elastic material with a parabolic cavity.

中文翻译：

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由一般各向异性弹性材料中的抛物线腔表示的钝裂纹的弹性场

使用 Stroh 六分方程，我们推导出弹性场，该弹性场描述了受到二维变形的一般各向异性弹性材料中钝裂纹的应力和位移。钝裂纹由抛物线腔表示。我们发现弹性场在具有抛物线边界的各向异性弹性材料中处处都是精确的，并且不限于近尖端区域。我们提出了具有抛物线腔的正交各向异性弹性材料中弹性场的明确表达式。