stress-strain tester

It is indicated that the main factors affecting tensile stress relaxation test at normal atmospheric temperature are the type and precision of tester, loading process of sample, test temperature and data disposal.

指出影响常温拉伸应力松弛试验的主要因素有试验机的类型和精度，试样的加荷过程，试验的温度及数据处理。

Methods The average dissecting force ( ADF) and interlamellar shear stress of each interspace in the media were measured using a tensile strength tester, and the the final shape-changed strength ratio of each layer was calculated before and after melting the tissue with collagenase and elastase.

方法测定人主动脉中膜各层间单位分离力、剪应力和胶原酶和弹力蛋白酶酶解前后主动脉壁各层的屈服形状改变比能。

Using the tester carries on the package sealing test, the tensile test and the endure stress test that the tests were based on the national standards, experimented data and the results indicate sealing intensity conforms to the national standard.

并按照国家规定的试验条件，对包装袋的封口进行了拉伸试验、耐静压试验，对试验所得的数据进行了分析，试验结果表明封口强度符合国家标准。