与传统测试方法不同，这种方法需要知道材料的泊松比和抗压强度，以及适合于岩石材料的强度理论。
In this method, Poisson's ratio, the compressive strength and a suitable strength theory are needed to calculate the tensile strength of rock material.
该理论不仅可以给出复合材料的初裂强度和极限强度，而且还能给出复合材料的应力-应变曲线。
Not only the strength at first crack and ultimate strength can be calculated, but the stress-strain curve of composite material can be established.
这三个新的强度准则不仅适用于拉压强度不等的材料，并且适用于那些单轴压缩强度不等于双轴压缩强度的岩土类材料。
These criteria not only apply to the materials of unequal tensile strength, but also to the rock material that uniaxial compressive strength is not equal to biaxial compressive strength.
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