FRACTURE test: a method of breaking sample product into pieces for test purposes.

断裂测试：出于试验目的而使样件断裂的一种方法。

A compact specimen is put to the fracture test under tension-shear combined loading.

本文利用紧凑试样在拉-剪复合加载下进行了断裂试验。

Based on the adhesive fracture test results of new and old concrete of the authors, a toughness model of adhesive interface of new and old concrete is put forward.

在新老混凝土粘结面断裂性能试验的基础上，建立了新老混凝土粘结面断裂破坏模式，分析讨论了界面层特性及界面微裂缝扩展对新老混凝土粘结面断裂性能的影响。

Fracture test of the BT20 indicates that brittle unstable fracture occurs after ductile crack initiation and slow propagation for all the compact tension (ct) specimens.

BT 20钛合金断裂试验表明，CT试样均在裂纹延性启裂并缓慢扩展后，发生脆性失稳断裂。

Hence, it is a very important problem to perform well test, evaluate the deliverability of the fractured horizontal well, and optimize the fracture parameters.

因此，对水平井压裂后的试井和产能评价，以及压裂水平井的裂缝参数优化是一个十分重要的问题。